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Best Free Hex Editor

 
In a Hurry?
  Go straight to the Quick Selection Guide
Introduction
If you ever accidentally open an exe program file in a text editor such as Notepad you will be confronted with a mass of unintelligible garbage on your screen. Worse still if you write the exe file back to disk, the program file would almost certainly be corrupted and would not work. That's because text editors are designed only to work with text files which are files with extensions such as .txt, .bat, .prg and .html. To view and safely change binary files such as .exe, .com and .dll files you need a hex editor, sometimes called a binary editor. Most average PC users have no need for such a program but techies and gamers find them indispensable.
Discussion

There are some excellent free hex editors available that range from the small and simple editors to advanced products that are comparable to any commercial product. Hex editors are a software category where personal needs and preferences are so important that it is meaningless to pick a "best product". That of course doesn't stop me stating my own preferences.

For my needs, HxD is a clear winner. Its first virtue is that it doesn't need installing. Second, it has a great interface. Third, it handles huge files without slowing down. Then add in unlimited undo, great searching and search/replace capabilities, binary file comparison, full support for ANSI, DOS/IBM-ASCII and EBCDIC character plus a dozen other features and you can see why I like it. But it doesn't stop there. Hxd also works as a RAW disk editor and a full read/write RAM editor. This power also makes it a dangerous tool in the hands of beginners. It may also give your security software an apoplexy, but users skilled enough to use this product will understand that this is not a concern.

Hexplorer has some unique features which make it a powerful editor for images. If you want to open images in a hex editor you should try this out. However, I was unable to increase the font size which made reading difficult.

Related Products and Links
There are a few more hex editors like frhed, hex editor neo, etc. which I will review shortly. Stay tuned in for updates.
Quick Selection Guide

HxD
9
 
Gizmo's Freeware award as the best product in its class!

Runs as a stand-alone program on a user's computer
Multiple languages; built in RAM and disk editor, loads only part of file to memory and has a low memory footprint, files are opened instantaneously irrespective of their size, added capability to generate checksums and compare files using them. Hex and Octal modes, features to concatenate, split and shred files.
Changes to file are immediately saved to disk. Therefore, backup your files when editing.
http://mh-nexus.de/en/hxd/
1.7.7.0
789 KB - 855 KB
Unrestricted freeware
A portable version of this product is available from the developer.
Windows 95 - Vista
Hexplorer
8
 
Runs as a stand-alone program on a user's computer
Built-in RAM and disk editor; extra features such as Fourier transform and pixel viewer to facilitate image editing. Can understand common headers like NTFS/FAT headers, BMP headers, etc. Supports macros to perform repetitive tasks.
Stores entire opened file in memory. The opening of large files is difficult. Font size is extremely small on higher resolution systems making it nearly impossible to read certain parts.
216
479 KB
Open source freeware
There is no portable version of this product available.
Windows 95 - Vista
XVI32
6
 
Runs as a stand-alone program on a user's computer
Does not require an installation. Downloaded file runs standalone. Supports scripting to automate repetitive tasks. Supports wildcards in searches.
Stores entire file opened in memory. So opening large files is difficult. No undo feature.
2.53
558 KB ZIP
Unrestricted freeware
This product is portable
Windows 9x/NT/2000/XP/Vista/7
HexEdit
6
 
Runs as a stand-alone program on a user's computer
Does not require installation. Built-in basic RAM, disk editor and calculator.
Stores entire opened file in memory. The opening of large files is difficult.
http://www.mitec.cz/hex.html
6.0.0.0
715 KB
Unrestricted freeware
This product is portable
Windows 95 - Windows 7
Cygnus Free
5
 
Runs as a stand-alone program on a user's computer
Stores entire file opened in memory. So, opening large files is difficult. Viewing help in Windows Vista requires a Vista update. However, the software homepage has all the details.
http://www.softcircuits.com/
1.00
285 KB
Feature limited freeware
There is no portable version of this product available.
Windows NT-Vista

The free version is simply an old version of the paid version. There are no restrictions on available features.

Editor

This software category is in need of an editor. If you are interested in taking it over then check out this page for more details.  You can then contact us from that page or by clicking here.

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Comments

by aphillips801 (not verified) on 4. January 2012 - 12:13  (86528)

Go to http://www.hexedit.com and download the free version.

It is much better than the free version of HXD - I can't believe you did not mention it.

by Anupam on 4. January 2012 - 12:47  (86530)

What are the differences in the commercial and free version?

by AlienG (not verified) on 3. January 2012 - 1:26  (86442)

Hexplorer is easy download from developer site.I test ALL sites and test ALL downloads with Spybot(updated every week). All A-ok.Easy, very fast install(select your options). I have many editers but this one is fast,fun and easy !

by McSpocky (not verified) on 30. April 2011 - 13:51  (71167)

I just tried Hexplorer and loved it, in fact I' removing my old Hex editor.

Concerning the one problem you found with it, " 2. Font size is extremely small on higher resolution systems making it nearly impossible to read certain parts. Can be the best software in this category otherwise.", I found it very easy to change it to a readable font.

The default font when I first started the program, was too small and difficult to read, as you said. I went to "View" and then "options". I chose "Oem Fixed Font", which is very easy to read on my computer. I also changed to the white background. If you want even larger text than that, choose "Fixed Roman Large".

by Wololo (not verified) on 2. March 2011 - 14:40  (67310)

I would like to see HHD Software Free Hex Editor Neo being tested. It is great for a freeware.

by anononon (not verified) on 5. December 2011 - 12:19  (84418)

HHD Software Free Hex Editor Neo -- stay away from it.
It's a worthless trial of their commercial product.
To "TRY" any useful feature you have to enter 14-days
trial.

Don't waste your time.

by anononon (not verified) on 5. December 2011 - 12:21  (84420)

also, 20 MB for hex editor ???

give me a break...

by Espyo (not verified) on 24. February 2011 - 15:18  (67017)

I'm currently trying HxD, and despite only messing with it for 5 minutes, I noticed that it has an undo function, and doesn't save changes automatically. Maybe the review on this list was made on a previous version of HxD that saved automatically? Well, the info should be updated now, because that bad aspect could scare some people, despite now being false.

by kisss256 (not verified) on 23. December 2010 - 7:52  (63118)

What if you want to see/edit the actual binary
i'm talkin' 1's and 0's
groupable in any size (for bytes AND nybbles)
this would be VERY useful for pictures...

by IronPlatypus on 4. October 2010 - 17:18  (59025)

I really like Tiny Hex Editor. It was recently posted on Free Download A Day. It doesn't have advanced features and it loads files into memory, but it's a single 240KB file and it works great as a simple hex editor. Plus it looks cool. =P

http://brooksyounce.tripod.com/soft/hexedit.htm

by MidnightCowboy on 4. October 2010 - 18:43  (59029)

The brooksyounce website is very much borderline for being accepted here. Proceed with caution.

by IronPlatypus on 4. October 2010 - 19:43  (59038)

Thanks for the warning, but could you please elaborate? I'd like to know what's up with his site so I can make better judgement on the links I post in the future.

by MidnightCowboy on 4. October 2010 - 20:52  (59040)

Sure. The same applies to this part of the site as stated in the forum rules:

18. No links to websites we determine to be unsuitable are allowed. Websites will normally need to have a green rating or no rating at WOT* in order to be allowable. No links to WOT red-rated sites are allowable. Links to orange-rated sites are not normally allowed except by direct reference to and permission of the Forum Manager:

http://www.mywot.com/en/scorecard/brooksyounce.tripod.com

Granted that these things can be manipulated by third parties with malicious intentions but we have to set a bencnmark somewhere, and this is it :)

by Anonymous on 19. March 2010 - 14:45  (45809)

you can try http://wxhexeditor.sf.net too.
Free, Linux, Windows, MacOSX and can open files up to 128 TeraBytes

by ipsita (not verified) on 19. July 2011 - 10:23  (75823)

but, it's so slow...:-(

by Anupam on 19. March 2010 - 14:54  (45810)

The software is in alpha stage, and therefore not recommended.

by Anonymous on 20. March 2010 - 21:12  (45903)

I am the developer of it and I leave it in alpha state because of no cut/delete feature yet. AFAIK, It have no problems on stability...
THanks

by Anupam on 20. March 2010 - 21:54  (45904)

Thanks for posting. But fact remains that software in alpha stage are not recommended for general use, and we certainly would not recommend a software in alpha stage. An alpha stage software should only be used by its testers, and you should not release it for general users.

by MidnightCowboy on 20. March 2010 - 23:17  (45913)

I agree with this assertion but maybe we should invite the developer to state when the product will enter a beta phase and what the changelog is likely to reflect at this point.

by EUA (not verified) on 30. July 2011 - 19:36  (76557)

wxHexEditor is in Beta stage with version of 0.11.

by MidnightCowboy on 31. July 2011 - 6:54  (76588)

Thanks for the update :)

by Anonymous on 18. March 2010 - 11:36  (45745)

The best free hex editor has been for the last 10 years the free version of hexedit - see http://www.hexedit.com. Just a few of the features:

- only editor I tried that could add a byte to the end of a 1 Terabyte file in a few seconds (at best the others hung or refused to do this)
- best search and replace options (eg mask and alignment options that are amazing)
- fast searches
- background searches are really useful
- unlimited undo (of course)
- most powerful template system
- very nice user interface - highlighter, + much more that I don't recall off my head
- comprehensive help

Please tell me a feature in any other free editor that is not better done in HexEdit.

by Anonymous2 (not verified) on 10. April 2011 - 4:14  (69876)

OK... I just tried a bunch of free hex editors, including HexEdit 3.0F. The specific feature I am looking for is a compare feature. I can tell you HexEdit has one of the worst implementations of that feature. The best compare feature I found was in Tiny Hexer, so I'm going with that one.

by Anonymous1 (not verified) on 9. August 2011 - 13:28  (77300)

I use the compare feature and I find it simple but effective. I especially like when you turn on the highlighter that all differences are highlighted as you find them.

by Anupam on 18. March 2010 - 14:24  (45757)

I was interested in a comparison between the free, and the commercial version of the product to see what is missing in the free version of the software. Some free versions of the software are really crippled. I was not able to find a comparison on the site. Would you be able to tell what are the differences?

by Anonymous on 21. April 2010 - 1:55  (48099)

As far as I know the free version is just a previous version of the shareware. I tried both and don't think there is great difference. You should be able to tell from change list.

by Anonymous on 28. December 2009 - 6:02  (39650)

Thank you for your article.You saved me you wrote this.
I'm looking for hex binary editor for Windows.

Thank you.

by Anonymous on 23. November 2009 - 8:25  (37160)

Hxd is a great tool. I use it for a long time.

by Anonymous on 14. November 2009 - 12:03  (36606)

Seeing forward to see Hex Editor Neo Free reviewed.

by Anonymous on 19. February 2009 - 21:47  (16381)

In Hexplorer, rather than changing the font size, you must change the font. Under [View][Options] select "Fixed Roman Large".

A powerful-yet-small hex editor that I've been enjoying lately is HexEdit from http://www.catch22.net.

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