Best Free Digital Image Viewer

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Image viewers belong to a software category where the quantity and quality of free programs makes it difficult to select just one product as a top pick. So, personal convenience will unavoidably appear as the ultimate factor for this review of free applications. And there's also the question of what exactly we mean by an image viewer, as the name may sound a bit too restrictive.

Digital photography has become so widely available that most pictures these days will linger in a memory drive and will never be printed, because we can visualize them on screens. As a consequence, hundreds of tools are developed for the task, ranging from the ones that offer just the most basic handling to others with loads of features nobody will ever use. However, nowadays' average users are likely to demand some additional capabilities apart from the simple viewing and browsing functions.

Thus, many imaging applications overlap categories and we have a perfect example in photo organizers, where a viewer is obviously needed to manage albums and the like. Therefore, the differences for this review should be based mainly on the aspects of loading speed, image quality, zooming capabilities, sorting options and other operations not directly related to image editing, tagging or organizing, although this is a definite advantage in most cases like the current Top Pick and a few competitors. But no program is perfect and if you need to make certain changes to your photos, you might find yourself using more than one app at the same time to meet specific requirements.

JPG is the most widely used file format for images today because of its quality/size ratio and is supported by every viewer I know of. Actually, it's the only file type allowed by some of them unless you pay for extras. Though it is quite old and others seem to do the job better, it has managed to prevail overwhelmingly, both online and in digicams. But there's a steadily increasing amount of people who shoot RAW in their quest for better image quality. Unfortunately, most camera manufacturers use their proprietary RAW formats, of course not supported by the others. Then, after being processed, those files are usually saved as TIF or other lossless formats, including Adobe DNG, Photoshop PSD, etc. On the other hand, we Internet surfers need a way to view those PNG or GIF files we eventually download. Therefore, compatibility is a point which can't be overlooked, since we have a variety of files that our ideal program should handle for viewing — and possibly converting them, too — without having to open a different application for each, an external editor or the specific software bundled with the camera.

Perhaps the most important feature anyone could require from a viewer is that it should be reasonably fast when loading and displaying images. In my opinion, any program that needs over 1 second to display JPGs like the ones produced by an average modern camera or smart phone is not worth the time to download and install it nor the disk space it takes. Note that file size (in bytes) as well as image dimensions (in pixels) all have an influence on speed, and hardware is another important factor. Obviously, the better your machine (especially the GPU, rather than the processor), the better the performance and loading times.

Some of these programs support video viewing, either by using their own player or your system's default player. The subject goes beyond the scope of this review, but I'll say you must have the proper codecs for the various video formats installed on your computer and this might be somewhat tricky to get done because you'll have to download and set up additional plug-ins, codec packs or even a separate application sometimes. Full HD and certain video formats usually require a lot of processing power to be displayed. The articles Understanding Codecs and Best Free Media Player are good readings to learn more.


Zoner Photo Studio - Manager windowZoner Photo Studio Free has been my top pick for years since its version 12 was released. The latest v.19 is now called Zoner Photo Studio X and is NOT free anymore, as an activation key based on an annual subscription must be provided to continue using the program after the trial period has ended. The old v.18 reviewed here, released in mid 2016, is available from Zoner's official website and others (see download instructions in the Quick Selection Guide at the end of this article). Still good enough to be the top pick here, it will have to be removed at some point in the future. Most of the changes introduced in later versions improved the program but, aside from the really bad news about ZPS X, some others weren't always for the better and this v.18 includes a few that may be considered clearly inconvenient. The worst part is that you must be online and logged in to a Zoner Account if you want to use the software, whereas the previous requirement was "just" registering with an email account.

Zoner Photo Studio first installs as a full program with all its features at your disposal to try for 30 days and after that period it will downgrade to the limited free version, unless you provide a valid activation key, but it will still have plenty of good things to offer. The interface looks very professional, even though all those menus, tabs and icons could make it seem a bit daunting and bloated to certain users, but it's very intuitive and tooltips show up for everything. Three main tabs are displayed at the top right, each one addressing a task: a 'manager' where we can switch between several views (browser/thumbnails, individual preview, tiles, details), a 'develop' tab where we can perform non-destructive adjustments to pictures, and an 'editor', which unlike in previous versions will disappear from the GUI forever when the trial period ends. The old 'Viewer' tab is not present in v.18 anymore but a press of F3 still calls up a detachable viewer window where we can cycle through images fullscreen in a typical sequential way or watch them in a slideshow. ZPSF generates thumbnails in a blink, much faster than any other I've seen, and general speed is outstanding, especially if you have hardware acceleration enabled in the preferences. The zoom system now also includes a very convenient one-click magnification similar to FastStone's (see below), which was an all-time first and is fortunately being copied by others. You can also sort and arrange your pics into any imaginable order, utilize the powerful search with many filters, tweak a lot of options for customization of menus, layout and shortcuts, and compare up to four images with synchronized panning and zooming, even if they are contained in different folders or drives. The 'Develop' module sports a complete set of professional adjustments (very useful, especially for RAW and TIF files) with a lot of great effects and filters. You can also make automatic backups of your photos, assign keywords and metadata to them, organize them into albums or catalogs, geotag them by dragging and dropping them onto a map, build calendars, stitch panoramas, share pics on the most popular social networks and many other things. Moreover, it reads a lot of formats, including RAW and PSD, and writes to the ten most commonly used. It supports video from within the program, 64-bit architecture and multi-core optimization. Comprehensive help and links to video tutorials are provided as well. And last but not least, that Zoner account needed to operate the program gives you access to your own online photo galleries hosted by the service called Zonerama, with unlimited storage space, no quality compression, no ads, and you can view your uploaded galleries inside the program.

On the downside, apart from the compulsory online operation mentioned above, even though v.18 has decreased its bulky size by 50MB, Zoner still takes over 315MB on your disk, an awful lot more than any of the competitors in this review, and it needs 1GB RAM. OS's older than Win7 are not supported anymore. They've thrown something as useful as the backward/forward arrows away from the manager view. Color management and advanced batch processing options are only available in the paid version, except for a few individual operations that can be carried out on more than one file at a time by selecting a number of them in the manager, opening the specific process dialog and then clicking 'Apply to all'. The main download link on Zoner's site goes to Cnet, which can be objectionable for their download policy and their wrapped installers, but you can use the link provided in the quick selection guide at the end of this article to download it safely and directly from Zoner's site.

Although Photo Studio might be a little overpowering for the needs of average users, and despite some questionable changes in use, it's undoubtedly a powerful, excellent program with lots of possibilities for those willing to take advantage of its many features.

XnView - Tumbnail and Preview windowXnView used to be my Top Pick till the release of Zoner Photo Studio Free and I would really keep it as such if there could be two of them. It's probably the most versatile of all viewers because it can read over 500 types of graphic files (some of them may require plug-ins) and convert any of these to over 70 formats. It displays images very quickly and they can be viewed in full screen, as thumbnails, as slideshows, or arranged in different lists and according to many options for sorting them out. It's quite capable at processing images, too; you can rotate, crop, resize, adjust brightness and color, apply filters or effects, create a web page and much more. Most of these operations can also be carried out as a batch, which is ideal for converting or processing multiple images with custom adjustments.

The thumbnail window can fit your preferences with several layouts and sizes; this is especially useful when displaying panoramic images in preview mode (see screenshot). Having the preview pane open does not slow things down like it often happens in other viewers. It offers nearly instantaneous hotkey and wheel zooming, and dragging the image around at any zoom level is perfectly smooth. It also allows having several images open at the same time and even running multiple instances of the program if you like to browse in different windows. There are many options to customize in the settings. It supports drag and drop, color management (with slower loading times), geotagging, lots of plug-ins, and is available in 45+ languages. It comes in different editions (Minimal, Standard and Extended) and a special enhanced version of the program, called XnViewMP, is under development. This one might replace the original, which is a heavyweight champion already.

IrfanView with its Folder Tree+Thumbnail Module on topOne of the best choices is the classic IrfanView (named after its author, Irfan Skiljan). This is a first-class product, but one for which I have mixed feelings. I began using it in 1998, when somebody told me it was an excellent (and at that time, probably the only) free replacement for MS W98's viewer. I really loved it because it allowed me to do many things with the photos I scanned, before I went digital. It's always been an amazingly capable application and very fast at displaying images. It offers plenty of functions for editing, converting, batch processing, slideshow exporting, etc. and supports almost any graphics plug-in (including one for color management). Some of the features (its resizing algorithms, for instance) are outstanding and could even rank above a big fish like Photoshop. When it comes to viewing damaged images IrfanView will try and display every area it can, instead of the error message that most other programs will show. It's a small download and it takes a mere 2MB on disk. This program has steadily remained the most downloaded (and then probably used) free viewer on download sites. And not without a reason, because it's a very powerful performer.

But, although so many users love it, IrfanView just doesn't work the way I'd like it to. There's some kind of "inconsistency" to it that is hard for me to explain. As personal quirks I'll say wheel zooming here requires holding the Ctrl key because it's assigned to browsing previous/next file, but then an image zoomed larger than the program window moves up and down when you spin the wheel. The inspection of different areas of a magnified image is done by right-clicking on it and dragging around with the mouse, as opposed to the usual left click in most other viewers. RAW support needs several different downloads and installs for plug-ins or dll's, and I don't see the point in having that separate module for thumbnails. This, however, may be exactly what other users prefer and the same applies to the interface, which looks a bit too outdated to me. It's quite simplistic, but not really intuitive and it's looked almost the same since early versions. I'm not fond of programs changing interfaces if I like a previous one, but a revamp might be welcome once in a while. Anyway, Irfan is a real winner for obvious reasons.
(The first download link on Irfan's site points to Cnet, which can be objectionable for its download policy and the unwanted additions it installs sometimes. Many alternatives can be found on the same page.)

FastStone Viewer - Thumbnail and Preview window FastStone Image Viewer is another excellent choice. It is very user-friendly and there are various reasons to choose this, but perhaps the main one is its superb interface in full screen mode, with different pop-up panels appearing when the mouse pointer reaches any side of the screen and disappearing when it's withdrawn. You can easily access nearly every function in the program from this window with no other element disturbing you until you decide it with just a mouse move, including a very handy thumbnail slider to browse your images. Even the smallest menus or panels in any of the modes are clear and well designed, and there are several skins available.

Aside from the usual wheel zooming, the zoom system has a very clever feature: it magnifies to a custom preset level with just one click, letting you pan around the image while holding the button, and returns to full view when it's released. This is really useful to check out sharpness or details in a photo and FastStone was the first viewer to include this great feature. Average files are displayed quickly and their thumbnails are generated promptly. But it's slower showing bigger files (>20MB, depending on the format and resolution) and others perform much better in this field, though that won't be an issue for most users. It may be a good idea to disable the preview pane in the thumbnail window as a way to speed things up. There's also an option to use color management, but it increases loading time. Another outstanding plus is the batch processing options, quite extensive and really easy to set up and run. A few useful editing features have been added in later versions, including curves, levels, lighting, unsharp mask, clone and heal. It also supports all major graphic formats and popular digital camera RAW formats as well, and offers an excellent cropping module, great slideshow capabilities, Unicode compatibility and GPS location with Google Earth. Much to like here.
(The first download link on FastStone's official site goes to Cnet, which sometimes uses wrapped installers. Some alternatives can be found by clicking on any of the other links on the same page.)

WildBit - Thumbnails and folder tree I can recommend another program, after most of my initial objections were overcome by the evidence and the author, who also showed a very positive response to my feedback. This special mention goes to WildBit Viewer, an outstanding application that can rival the ones reviewed above in many aspects. The program is highly manageable and functional enough to earn the respect of many users.

Apart from the common features found in the other products mentioned so far, it offers aspect ratio information, small-increment wheel zooming, a very intuitive image editor with a full array of editing tools, a superpowerful search function that can track any metadata or EXIF information, an excellent geotagging tool to embed geographical co-ordinates in the files, and the most comprehensive help you can imagine. There's also a function for side-by-side image comparison with difference calculations, and a highly customizable slideshow mode that can be operated from external Android devices over Wi-Fi connections with its remote feature. It supports over 70 formats (including some videos, from which frames can be extracted in multipage view) and runs on Windows XP through W10. From version 6 on, it includes full Unicode support. WildBit Viewer is a very competent alternative.


Nomacs - Folder tree and main window with Thumbnails stripAfter several years with just those five products making up the top list, a fairly new contender that goes by the name of Nomacs - Image Lounge has made it to finally include a much longed-for representative of the open source projects. This is another case of developers' responsiveness to user requests, together with some interesting approaches to image viewing. (Thanks to fellow editor Panzer for his suggestion). Nomacs looks nice and simple and offers the components I like to have in a viewer, such as a built-in folder tree, a thumbnail preview panel, a thumbnail strip, a few sorting options, a histogram, EXIF information, fine image quality and good speed. A few basic adjustment options are also available, like rotation, cropping, resizing, and correcting brightness, contrast, saturation, exposure, etc. There's a slideshow player, too. It supports quite a lot of file formats, including RAW and PSD. Moreover, it has 64-bit portable versions and can run on Windows, Mac OS and Linux. I recommend using the right-click context menu and also taking a look into the Settings (inside the 'Edit' menu or the context menu), then check the 'Advanced' box and customize whatever options to your liking.

But Nomacs is really special because of a few other things that are uncommon for programs in this category. For example, it can change the transparency of its interface, open very large images with surprising ease, show them in a frameless view on your desktop, rotate RAW files permanently, build a mosaic based on a target image composed by any number of other images, or pause animated GIF files and save their individual frames. These are all outstanding features, but something I had never seen before is that multiple instances of the program can be connected to work together on the same computer or even synchronize them across a LAN to perform several specific functions on different machines at the same time.

There are a few inconveniences, though. When you come from other viewers, it takes some time to get used to the layout, since a number of common generic functions are assigned to unexpected menus. The mouse wheel zooms in and out with totally inconsistent steps, so it's almost impossible to get the same magnification twice or zoom up to a desired exact level with it, except for 100% view. No custom levels are allowed for zooming either, though this will likely be included in future versions. Despite these flaws, Nomacs is an appealing product that many users will appreciate.

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      I've tested a large number of other applications (too many to be mentioned), but none of them made it to the top. Our readers have suggested many of those. When this is the case, I usually post a reply in the comments section with my reasons. Maybe your favorite program has already been discarded here, but feel free to submit any product you think might deserve a try. But please, try it yourself before and tell me what you like about it, instead of just posting a link. We have a lot of good apps here already, maybe too many for a readable article. Sometimes letting ones in and others out feels like splitting hairs. There are many decent ones out there and even Windows' built-in viewer performs acceptably when browsing through average images, although it is so limited. Now that everybody has lots of photos to deal with, one would expect some improvements in Microsoft's viewing app over the old W98 and XP in the successive OS's, but it's been very disappointing to find out neither Vista nor Windows 7, 8 or 10 were significantly better for the task so many years later, and such a bleak background is another spur for software developers. This article is going to be lengthy but it wouldn't be fair to end the review without mentioning some other freebies that offer quite remarkable features. (Thanks to everyone who let me know about them.)
    Users who just want a very simple replacement for the default Windows photo viewer have a good alternative with Pictus (thanks to mrin for the suggestion), kind of what could be called a "pure viewer". I used to recommend ACDSee Free for this position, mainly because of its impressive speed, but it has been discontinued, although it can still be found at several download sites. Anyway, Pictus has a few better features than ACDS, apart from being practically just as fast, and that's a lot to say! It displays pictures nearly instantaneously, no matter the image size, without needing lots of processing power, which makes it perfect for use in low-end computers. Even hard files like those huge PSDs or LZW-compressed TIFs are shown in a breeze, when they are usually a pain for other viewers to open. The interface is clean and the backdrop color can be customized in the settings menu, along with mouse behavior, rendering algorithm and a few other options. Since the program has no menu bar nor icons, it's operated mainly by right clicking and selecting the functions from the context menu, but it's quite user-friendly because there aren't many of them and they're clearly understandable. These include (very) basic sorting, picture orientation, renaming, wallpaper, and adjustments for brightness, contrast or gamma. You can use a few shortcuts, too. It supports 11 common formats, including animated GIF and PSD (no RAW), and adds the interesting ability to show their respective thumbnails in Windows Explorer, which is a very nice plus that might make some people (myself included) install the program even if they won't be using it. Besides, it can be made portable by placing a .ini file in the same folder as the main executable.

Pictus has a few drawbacks, however. It's just a sequential viewer like many others and it relies on Windows Explorer to access folders and files. No thumbnails or image lists are provided within the program and that means a limited navigation experience. I miss some more customization and an inexplicably lacking option to sort images by file type, apart from being able to use the arrows on the keyboard to browse through pictures without having to press the Alt key. Being a "pure viewer", no changes or adjustments such as orientation or brightness can be made permanent because the program does not allow to save the modified files as any format whatsoever. On the contrary, those adjustments are always kept from one image to another and to the rest of them when browsing and they have to be reset manually; this may be convenient or not, but there should be an option to control that behavior. Another personal inconvenience is that the Esc key always closes the program. Nevertheless, many users will consider these drawbacks as minor because what they really want is simplicity and good speed. Pictus is a champion at both.
     Simplicity and speed are also key features in a very nice program called Nexus Image. This one was suggested by one of our readers (choifamilyipad) and it has turned out to be probably the most appealing of all the "simple" viewers to me because of its outstanding image quality and beautiful interface. Its opacity and color can be changed and a vertical thumbnail strip on the right makes browsing easier than in most other simple apps, where a linear previous/next file navigation must be followed. Folders are quickly accessed by double clicking the viewing window, selecting one from the tree and opening an image. Then you can use the functions either by right clicking and selecting them from the context menu or by means of conventional shortcuts, although mouse wheel zooming requires pressing Ctrl. Captions can be added to pictures, it can show EXIF information, supports common formats (not RAW, but does PSD and animated GIF), is available in many languages, has a light footprint on your system and is fully portable, with just a 2MB download.
On the downside, being so simple means there aren't many features to talk about and I miss some of them in particular, namely some kind of sorting options for the thumbnails, basic cropping, and permanent rotation applied to pics, as it is just temporary in this software. Again, if you're used to pressing Escape to close a fullscreen view of an image in other viewers, then you'll find it a personal annoyance in Nexus, because doing so here closes the program with no prompt and you just can't help pushing the damn key... Well, anyway, that's something you can live with, I guess. And this program is worth the trouble.
     Honeyview, suggested by our reader Pliskin, is also one of those simple viewers sparing in features and focused on the basic viewing experience. It has a pleasant interface and a small set of intuitive controls for navigation. Most functions are accessed via right-click menu or keyboard shortcuts, and you can configure up to seven hotkeys to your liking. There are a few basic sorting options available and a slideshow mode. You will love its great speed even with big files and formats such as PSD or LZW-compressed TIF, which the majority of viewing programs take longer to open. Its image quality is also wonderful and RAW files are beautifully rendered if you choose not to display the embedded JPG, although this method is obviously slower. What is not slow at all is the rendering of images using the ICC color profile they may have attached; this is a remarkable aspect where nearly all the competitors are extremely weak, even the top ranking ones. Quite a lot of settings can be tweaked to fit your preferences, including background colors, mouse buttons' behavior, etc. The wheel can apply zoom in 10 or 1 percent steps. It supports 15 common file types (including animated GIF, which you can visualize frame by frame) as well as the main RAW formats, and is able to view images directly from compressed files without extracting them. It works on Win XP through W10 (32- and 64-bit) and a portable version is available.
The drawbacks are very few, assuming that the program is sparing in features. There's a thumbnail strip that shows a small preview but it's inside a menu and the design is awkward, as it won't let you click on a thumbnail to open the image. There are just two editing functions: rotate and resize, both sharing the same panel under the 'Convert' heading. The output conversion can only be saved as JPG or PNG. There's no cropping whatsoever nor a desirable TIF output that would be really handy to save the program's nice rendition of RAW files. When you are browsing, any eventual rotation is just temporary, but if you use the rotation commands, whatever pics you display after that will appear rotated, a peculiar all-or-nothing approach. Anyway, you can always set the preferences to autorotate based on EXIF info.

     Xlideit is the fancy name of another product that can be included in that somewhat blurry category of "simple" viewers (thanks to Bhat59 for the suggestion). I guess such a name is a pun for its ability to go to the next or previous file in the folder when you click on a picture and slide it left or right. It's fast enough and very user-friendly. The first time you open the program it presents you with the settings, which are quite a lot and let you customize such aspects as window transparency, background color, mouse behavior, zoom options, thumbnail size and position, toolbars, slideshow, etc., although the default ones are perfectly good to go. If you've read this article so far, it should be evident by now that having thumbnails available is one of my favorite features for a good browsing experience. Xlideit has a thumbnail strip at the bottom of the window by default, though it can be placed on either side or set to auto mode, when it will just pop up with a touch of the mouse. Likewise, a built-in folder tree is another useful item to have and there's one here, saving us unnecesary clicks to find a desired folder. Right-click menus are very complete too and most functions can be accessed this way or by means of icons. I also like that resizable detached zoom window, a very interesting concept that could be considered as the reverse of the navigator that is found in many imaging programs, where a little rectangle moving over a reduced version encloses the portion of the picture that you've zoomed into in the main window. Xlideit does the opposite: you have the whole image in the main window and the zoomed version in the detached view, and moving the mouse around shows the corresponding section blown up. Of course, you can also use the zoom in the main window, and even with animated GIFs and videos! The most common image formats are supported, along with video, audio and several document formats with text and pictures, and they can be sorted in many different ways. Image files can also be rotated, resized and cropped, and this can be done in a batch. In addition, it's very lightweight and portable.

Although I haven't found many inconveniences in Xlideit, as a power user the main drawback for me is what it can't do, but this is something not applicable to unpretentious average users who just want a simple way to browse through their photos. Some of the few flaws include the following: no RAW or PSD formats are supported, zooming out won't go further than the 'fit to window' size until you write the exact percentage inside the zoom widget (this one is not the same as the zoom window mentioned earlier), the delete button erases files with no prompt (they are sent to the recycle bin, fortunately), the Esc key always exits the program, and I miss a quick way to access a previously visited folder. As you can see, these are very minor drawbacks and then whether you like the program or not is just a matter of personal taste. Oh yes, and it's only available in English, but if you're reading this, it won't be a problem, I guess.
     One of our anonymous users suggested cam2pc and, after giving it a try, it has proved to be an excellent program in many aspects. As the name suggests, cam2pc provides a handy way to download pictures and videos from your digicam to your drives, allowing you to use lots of options for renaming, saving, etc., and has specific support for the widely used Canon EOS cameras (separate download). The interface is intuitive and easy to use, with a folder and thumbnail view that resembles FastStone. As with this, I recommend to turn the preview panel off, though thumbnail generation is really fast. Actually, speed is outstanding in almost every aspect of this app. The feature that impressed me most was its ability to quickly display LZW-compressed TIFs, something unusual in its competitors, although these perform better with Photoshop PSDs.
The only reason why I don't include cam2pc along with the top programs is that the freeware version lacks quite a lot of features that can only be found in its commercial sibling and which the others offer for free. But I guess most users could perfectly do without those.
     Imagine is a very fast viewer vaguely resembling Irfan in its simplistic interface, though the number of features is lower. Wheel zooming also needs pressing the Ctrl key. Several instances of the program can be open at the same time, it lets you customize various mouse modes with different configurations and select any of them instantaneously to fit your workflow, allows frame extraction from animations, reads inside zip, rar and 7z archives, has multilanguage support, 64-bit versions, and is portable.
On the downside, it's quite limited in other areas; for instance, the editing and batch processing options. No RAW or video formats are supported. Sometimes a few Photoshop PSD files can't be read and an 'out of memory' message appears when trying to open them, irrespective of their size and my lots of free RAM and processing power. But the app is an AWSOME performer with the PSDs that load properly and displays them nearly instantaneously once the thumbnail has been generated; an outstanding feature that not many viewers, free or commercial, can boast.
     Picture Information Extractor Free (PIE) comes to this article after Panzer's suggestion and because it has nearly everything I think a viewer must have. Anyway, the developers insist mainly on the ability to visualize all the metadata embedded in pictures, which is undoubtedly another way of viewing them. EXIF, IPTC, XMP, keywords and other data are conveniently shown on a pane to the right of the screen when a file is selected. The main interface also displays a folder tree with a preview pane and the files can be sorted in various types of lists or thumbnails. The features include wheel zooming in fullscreen view, custom thumbnail size, powerful search, excellent import options, wonderful renaming capabilities, it reads RAW and PSD formats, deletes RAW+JPG files with one click, supports color management and has good image quality. As an outstanding plus, PIE is one of the very few programs that can rotate RAW files permanently and for some users this feature alone would make it worth the installation.
On the other side, this free version of PIE cannot save any changes to the metadata, which is the only cut compared to the commercial one, but quite significant. There are also a couple of flaws in important areas such as speed or zoom. No problem when you're surfing through average JPGs, TIFs, etc., but it takes some time to even change directories and access a folder full of big RAWs, and then another while to display each file in full screen. The zoom can't reach pixel level and, along with pan, it's a bit sloppy. Moreover, the wheel turn for zooming in or out works in the opposite way to the rest of viewers I've tried so far. I miss animated GIF support as well. But many users won't even notice these drawbacks.

     Pictomio is a good representative of the recent trends in this category, which pay greater attention to "fancy" interfaces and presentations to improve user experience. The main drawback with this is the usually high resource consumption and graphics card requirements, and the program is no exception, as it uses 3D hardware acceleration. I'd say it is mainly geared to organizing, with a great number of options for (geo)tagging, metadata editing, rating and grouping, but it performs very well as a viewer, too. It's really fast once the thumbnail indexing has finished and displays an image preview instantly, and you can zoom in and out to any level. It supports some video formats as well. The interface is really nice and its many tabs show a lot of information.
Pictomio, however, is not intended to edit pictures and there are no options for this other than lossless rotation. There's no support for RAW, PSD or animated GIF formats either. Moreover, indexing should be faster and it fails to generate a thumbnail for some really big files, but the picture is displayed perfectly if you click on its blank rectangle. Unfortunately, the program hasn't been updated since mid 2012.
     Although their names look nearly identical, Imagina has nothing to do with Imagine, reviewed above. Actually, that's where similarities end. This application ('a next-generation image viewer and editing tool', the developers claim) is a perfect example of the new concepts based around 3-D technology, but much lighter on resources than Pictomio and others of this kind. Browsing speed isn't as fast either, even compared to "normal" viewers, and this is especially noticeable with bigger files. For instance, when opening my EOS 7D's 18-megapixel JPGs the program clearly stays behind the top performers, though this should mean no issue for average users, as their files will be half that size or less, typically.
There may be some things I really miss (more customization for certain basic aspects, a built-in folder tree, support for PSDs, more straightforward management of some files like TIFF, etc.) and many other reasons why my workflow as a photographer won't (yet) fit what Imagina proposes. But photo pros are only a few among the vast lot of digicam users who just shoot JPG. And these will love it! I do love it too, believe it or not. Its absolutely outstanding features have captivated me. User experience is excellent and no other viewer I've seen shows that image quality or that zoom and pan smoothness. Both 2-D and 3-D graphics are amazing and even videos can be watched in this environment (with zooming and panning!). It offers state-of-the-art RAW support by using David Coffin's DCRAW along with its own algorithms, top quality editing functions, real color management and some useful tools, like the 'straighten picture along a line' that many users have been craving for. So many good things make it at least a must-try. (Requires .NET 3.0 or higher)
But there's a problem that might affect Imagina's continuity now: the official site is not online at present and I don't know what is happening with the program and its development. Since it is an outstanding app, I'll keep it here for a while linking to the alternative download from Softpedia.
     After some debate in the comments section I've decided to mention FastPictureViewer, but just because of one single feature. This claims to be (and it might be) the fastest viewer ever, especially indicated for quick browsing and culling. Like Pictomio, it uses hardware to speed things up and requires a lot of system resources and graphic capabilities. It has a nice interface as well. Anyway, the program offers very few functions once the initial trial period expires and actually becomes limited to viewing JPGs and not much more than screening and tagging. It does support full color space awareness, though, and the unbeatable speed is a very strong argument in its favor.
      Finally, one of our site users, Mythril, suggested two programs which work with a very different approach, but with a special focus on speed. These are Vjpeg and Osiva. I just quote Mythril's comments because they are right on spot (original 06/02/09): "Both work by opening images in a borderless window that you can drag around and zoom in/out at will, practically without any lag, and you can open as many images as you want at the same time. Both programs load very quickly, but don't have any features to speak of. Another drawback is that there doesn't even seem to be a way to cycle through images in a directory... Osiva is slightly better in that you can easily drag and drop a bunch of images and have it open all of them for a superquick overview". I'll add they support very few file formats and are a bit awkward to use, but Vpej and Osiva are quite different from what I had seen so far.
      Another reader, Bziur, also put forward First Impression, which works in a similar way without an apparent interface, just by using right-click menus and offering pretty much just what the name of the program suggests.
      This entry in the Wikipedia features a chart comparing a considerable amount of free and commercial image viewers. Most of these products are also given detailed individual entries and include links to their websites.

Best Free Digital Photo Organizer
Best Free Digital Editor
Best Free Media Player

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Quick Selection Guide

Zoner Photo Studio Free

Gizmo's Freeware award as the best product in its class!

Runs as a stand-alone program on a user's computer
Nice interface, very customizable, very fast, lots of features, good editor, full Unicode support
Limited batch processing options, takes over 315MB on disk, interface may seem somewhat bloated
67.3 MB
32 and 64 bit versions available
Feature limited freeware
There is no portable version of this product available.

The new ZPS X (v.19) isn't free anymore. Anyway, we recommend v.18 since it's still good enough. Zoner installer deploys both 32- AND 64-bit versions of the program even on 32-bit systems! The program runs initially with unlimited features for 30 days and then, when this trial period is over, it becomes the free version with many of them disabled. The primary download link at Zoner's site leads to Cnet, which may use wrapped installers, so the link provided in this quick selection guide is better to download it directly from Zoner's site ( ); then skip the 'Free download' button and look in the box below the 'Download Older Versions' heading, select ZPS 18 from the list and click 'Download'.

Windows 7, 8, 10


Runs as a stand-alone program on a user's computer
Fast, lots of features, very manageable, many plug-ins
The batch processing options could be better implemented
32 bit but 64 bit compatible
Free for private or educational use only
A portable version of this product is available from the developer.

Multi-monitor support

All Windows


Runs as a stand-alone program on a user's computer
Fast, lots of features, many plug-ins, less than 2MB on disk
Simplistic and a bit less manageable than main competitors
32 and 64 bit versions available
Free for private or educational use only
A portable version of this product is available from the developer.

Multi-monitor support. The first download link on Irfan's official site goes to Cnet, which sometimes uses wrapped installers. Many alternative links can be found on any on the same page.

Windows9x - W10

FastStone Image Viewer

Runs as a stand-alone program on a user's computer
Very good fullscreen interface, very user-friendly, good functionality, excellent batch processing options, GPS location in Google Earth
Slower than competitors with larger files
32 bit but 64 bit compatible
Free for private or educational use only
A portable version of this product is available from the developer.

Multi-monitor support. The first download link on FastStone's official site goes to Cnet, which sometimes uses wrapped installers. Some alternatives can be found by clicking on any of the other links on the same page, although they are slower.

Windows98 - W10

WildBit Viewer

Runs as a stand-alone program on a user's computer
Very manageable, excellent editor, geotagging capabilities, full Unicode support.
Slower than the others above sometimes.
32 bit but 64 bit compatible
Free for private or educational use only
A portable version of this product is available from the developer.

Multi-monitor support

Windows98SE - W10

Nomacs - Image Lounge

Runs as a stand-alone program on a user's computer
Fast, opens very large images easier than competitors, frameless view option, several instances can be synched locally or over a LAN, cross-platform
Quirky zoom, some common functions are assigned to unexpected menus
32 and 64 bit versions available
Open source freeware
A portable version of this product is available from the developer.
Windows XP through10, Linux, Mac OS, OpenBSD, OS2

This software category is maintained by volunteer editor Marc Darkin. Registered site visitors can contact Marc by clicking here.


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Although I have found it mentioned as freeware on some pages, it doesn't look that this is a Free/Lite version looking at the official page.
IrfanView doesn't work for me on W7 with Online Armor. OA keeps blocking it, as IV requests an autorun every time it starts. There is no option to disable autorun in IV, and you can't allow or trust IV's autorun exe file in OA because for some reason the filename changes when it starts up, from irfanview.exe or whatever to irfanview.exe "%1" whatever that is, so that OA doesn't recognise it. The end result is it takes 30 seconds to view an image so you might as well be using an Adobe app or something equally clunky. OK now to find a simple, fast viewer that works with my W7 set-up.
I'm as glad as Anupam that you found what you needed. ACDSee Free is in my list of programs to review when I have some time to properly test them, and it's good to know your opinion about it in advance.
Tried Wildbit as it looked the simplest. No go, it can only open the image full screen, or in an editor. Still trying to find one that works like ACDSee - just opens the image, and nothing else, fast, with no editor, at the exact image size, or at a maximum size of one-third the screen no matter how large the image is, no thumbnails or full screen or editor - just the image. Guess I must be the only person in the world who just wants to see what the selected image is and nothing else...
Windows own image viewer works nicely for that I think. If you like ACDSee, then you can try its free version, which they released last year.
OK got the free version of ACDSee - thanks Anupam. Works very well as although it opens with an editor, it's in 'skinny' mode, and you can set the window size to what you prefer; it then opens all images at that size, which is what I need. Also it tags all image files with a filetype icon so you can see which is a jpeg or gif quickly. Excellent. It's perfect if you just want to open an image fast, and nothing else. Better than Windows pic viewer, one reason being that it gives each file an icon that tells you what it is without close examination. Also the install and usability are way better than the others I tried - the install is very slick. Important if using Online Armor to block any toolbar installs etc.
Glad you found something to serve your purpose well :).

RE: FastStone Image Viewer

This program is blacklisted by sophos.

I have used and really preferred FSViewer for a couple of years. The interface and usability are impressive. About two weeks ago it stopped working on my computer at work. Though the error message was vague, it turned out Sophos was blocking it from running.

The error says:
"Windows cannot access the specified device, path, or file. You may not have appropriate permissions to access this item."

As I said, vague!

I am admin on my PCs, but I don't have control over sophos' settings so I cannot use it at work. I do still use it at home and all of my research shows the file [downloaded from] is safe and that this is likely a false positive.

It SURE is a false positive! A program as popular as FastStone would never have managed to be so widely used if the community had been suspicious about security concerns with it.
"... Picture Information Extractor is an unique picture browser and viewer with exquisite photo metadata and file renaming features ... Use the mouse wheel to zoom into or toggle between pictures, cursor keys or mouse for panning, function keys to display or hide information. One single key or click starts the slideshow or switches to the browser window. No other tool lets you fly through your pictures so pleasingly. Besides, the viewer supports RAW files from almost any digital camera ...":
Thanks, Panzer. PIE is now included in my article.
Thanks, Panzer. PIE is a program I tested a few years ago and it didn't attract me much at that time. Unfortunately, I've lost my notes about it and can't remember exactly why I didn't like it. Anyway, I'll try it again with its latest version but it will have to wait. There are a couple of other programs in my to-do list and they come first. One of them is Photo+, which was suggested by yourself a while back. I wish I had more time!

can anyone tell which software is best for viewing and editing a bunch of image quickly..
i want just highlight or underline sentences in a book and also able to read with good zooming i have download a BOOK having 450 image...unable to viewing and editing at same having good functional capability..i have tried few recommended product but no is good for both editing and viewing..also want to read screenshot of large web page with zooming plus editing(just highlight and underline is enough)can you recommend any software for doing this job magnificently.

You haven't made it really clear if what you have is an ebook that includes 450 images or if those images are the book itself and each one corresponds to a page. I can't help you if the first is the case, as I don't know much about ebooks. But in the second case any of the programs in my top five selection should be able to perform the operations you need without too much hassle. Anyway, although these apps aren't optimized for the specific task you require, I don't really understand what you mean by "good functional capability". Just remember that highlighting or underlining sentences typically requires the use of a brush or making a selection of an area and then fill it with your color of choice after setting the opacity for it. Perhaps FastStone could be the easiest for the task. It has a very good draw board (shortcut D) which includes precisely a highligter line and a highlighter rectangle with lots of options for colors, opacity, etc. Remember to save your changes to the image after you're done, preferably with the 'Save as' command and a new name to keep the original image intact, just in case you want to change your mind about the edits.

Yes your mentioned viewer FastStone works really nice for has really a nice shortcut(the D- shortcut).Also i convert all the image to pdf through PDF-TOOL and open it via pdf x-change.With pdf x-change i can draw shapes with pencil but i cannot highlight .But with fastStone i can highlight pencil and draw lines(shapes) through pencil and through rectangular highlighter i also highlight a paragraph with sentence visible(the section under highlight) or i can make it blur.

You haven't made it really clear if what you have is an ebook that includes 450 images or if those images are the book itself and each one corresponds to a page.(as per your replay)

now i want it make it clear-actually i have 450 image file and each image is a page of book itself.
thanks marcdarkin for your helpful replay.

Thanks, harish. I'm glad it helped.