This is the most comprehensive listing of legal and free ebooks offer free K and legal Kindle ebooks. The links here provide all their works in Kindle compatible formats. I did not include PDF works as many Kindle users complain that those do not display properly.
As of April 4, 2016, there are 79 sites listed that monitor Amazon for limited time free ebook offerings as well as 71 sites that offer Kindle compatible ebooks of their own. There are also several links and tips on finding the many free ebook offerings from Amazon.
You do not have to have a kindle device to read kindle books. A kindle application is available for every major smartphone, computer and tablet. Additionally, Amazon has a Kindle cloud reader available, so you do not have to use software or download the ebook to read (free registration and residency requirements).
A major source of free Kindle ebooks is Amazon. These are generally only available to those residing in the countries where Amazon operates and free registration is required.
However, there are many other sources of free Kindle ebooks on the web, where no registration or residency requirements exist.
For a complete listing of the free ebook pages here at Gizmo's, see
A comprehensive alphabetical listing of free books for reading or listening can be found on these pages:
There will be other Kindle compatible ebooks at sites listed there, but on some sites not all of the listings are Kindle compatible. The sites here have all their offerings in Kindle compatible formats.
This listing does not include audio books and the audio books found at the pages above will generally all work within Kindle.
Also, if you just came here looking for free ebooks, I would suggest that you take a look at the rest of the site. The free ebooks listings are a small part of the great information available here. This site is mainly for review of free software. Each reviewer is a volunteer and has a personal interest in their software category, so you'll get an unbiased review from an enthusiast of that software type. In almost all cases, a free software can do the task of any paid software just as well, if not better.
There are many thousands of free ebooks at Amazon. Finding them all can be confusing, but hopefully this article will help. As I live in the USA, and the Amazon USA site is the only one that I can search accurately, the links here are for the USA Amazon site. However, using Jungle Search and the hints here, you may use the information for any of the Amazon sites.
I have set this at the top as this is the listing of free Kindle ebooks at Amazon that are only available for a limited time. There are genre listings for these free listings in the left side of the page. The number of free offerings varies, but appears to be over 200 free books at any given time. Click on link above to access.
If you find a title you like, then grab it as these offers can expire quickly. There are sites that monitor Amazon for these free offerings listed below.
Amazon Best Sellers
Amazon also lists the 100 best selling ebooks in many of the genres available there. In addition, they also list the best sellers (I assume most downloaded) that are free. Some of the genres will have the full 100 and some will not, but this will get you to some more of the free Kindle ebook listings at Amazon. Supposedly, these are updated hourly
On the left hand side is again a listing of various genres and by clicking on those you can get to the free listings for that genre.
I will give the basic ones that you can work from:
- Amazon Best Sellers (all works) (USA) (UK)
- Amazon Best Sellers (Fiction) (USA) (UK)
- Amazon Best Sellers (Non-Fiction) (USA) (UK)
On each one of those you will be able to navigate to sub-categories to find additional free Kindle ebook listings.
As the title says, this is Amazon's listing of free classic Kindle ebooks. This is pretty much going to be the same batch as the public domain search through Jungle search, but should provide a way to access more of the over 15,000 free classics (again due to the 400 page limitation). Again, using the sort options should help to access more. Click on link above to access.
Amazon Price Low to High
You may also go to the regular Kindle ebook search at Amazon and use the sort option of Price Low to High to find further free Kindle ebooks available. I put up the basic links for this below. Once you are at any of these links you may click on the departments, or genres, on the left and you will be taken to the Low to High sort page for that department or genre.
- Amazon Price Low to High Sort Kindle eBooks (USA) (UK)
- Amazon Price Low to High Sort Kindle eBooks Fiction (USA) (UK)
- Amazon Price Low to High Sort Kindle eBooks Non-Fiction (USA) (UK)
Jungle Search is a search engine designed for searching at Amazon. The link above is for the USA search, but they also have a search engine for France, Germany, United Kingdom and Canada (links at top of page). I assume that if you are not in any of these countries, then Amazon will not be available to you and only the listings for your country will be available. The information below is regarding the USA Amazon free Kindle eBooks.
Jungle search may be used to find free Kindle ebooks at Amazon by entering a 0 in both of the price range boxes on the Kindle Search tab. If you enter the 0's and select the bottom option to include public domain works, you will be taken to a page which indicates that there are over 50,000 free Kindle ebooks at Amazon.
Unfortunately, I am unable to get the search results to go past page 400, which means all that may be accessed on any given search is maximum 4800 free Kindle ebook listings. This is true for any of the searches where the results are greater than 4800. I believe that there are over 50,000 free Kindle ebooks at Amazon and by using various different searches, you can get to view more of the total free Kindle ebook listings at Amazon.
I have thrown up a few different USA Amazon searches that will help to get started. For each one, on the left there is a "Departments" listing, which is a category listing of the books. By clicking on those you will be able to get to more of the free listings. Also, for each of these and each of the Department listings, there are "Sort" options in the upper right of the page. By using the various sort options, you will be able to see more of the free listings.
First some variations of the combination of Public and Non-Public Domain free listings:
- Public Domain and Non-Public Domain
- Public Domain and Non-Public Domain Fiction
- Public Domain and Non-Public Domain non-Fiction
Similar links for Public Domain only free listings:
And the same for Non-Public Domain free listings:
There are many other options to use with Jungle Search, including reader ratings and age (from baby to teen) as well as various sort options. If any of you have a favorite way to access more of the free Kindle ebook listings through Jungle Search, please post the resulting page at Amazon and what you entered at Jungle Search in the comments below and I will immortalize you in this section.
There are sites that monitor Amazon for free ebook offerings. Many of these you will find on the links above, but these may reveal unfound freebies and are generally easier to follow. These all appear to be for USA listings only. These include limited time offers and these sites should be followed regularly to take advantage of all available.
A thanks to Jill (jillnojack) for providing information on a number of dead links in this section after the recent change in policy from Amazon for sites that like these.
Addicted To eBooks allows authors to post their ebooks when offered as a limited time free ebook offering at Amazon.
A to Zwire monitors the USA and UK Amazon sites daily for limited time free ebooks. They only list ebooks that have a rating of 4 stars or above after at least 25 reviews each. They list about 13 free ebooks daily. Thanks to Corey F for this link.
Author Marketing Club monitors Amazon (USA) for daily free ebook offerings. The amount listed varies from day to day. They do offer genre selection.
Bargain eBook Hunter does not offer as many listings as others in this section, but has very detailed reviews of the offerings that it has. They also offer search by genre for free listings. They do offer RSS and eMail updates, but not just for the free offerings (includes bargains).
Best eBooks Freea mix of bargain and limited time free ebook offerings from Amazon (USA) separated into several genres. Email updates by genre are available. Thanks to Rayven for this site.
Book Freebiesposts several limited time free ebook offerings from Amazon (USA) with a synopsis of the novel and information on the authors. Email updates are available.
Book Goodies monitors Amazon (USA) for limited time free ebooks offerings. They list several free ebooks daily and have an individual description of each ebook.
Book Goodies For Kidsmonitors Amazon (USA) for limited time free children ebooks offerings. There is a nice category selection with a couple of free ebooks per category.
Book Tour Radio maintains a listing at Pinterest of daily free ebook offerings from Amazon (USA) and sometimes also (UK). They list several offerings per day. You have to go through a couple of links to get to Amazon.
Centsless Books monitors Amazon (USA) hourly for limited time free ebook offerings. They have a large listing and a wide range of genre listings to narrow the search.
Daily Cheap Reads offers up a few free Amazon ebooks daily. Updates by email are available.
Daily Cheap Reads Jr. a children's version of the above, a few free Amazon offerings daily. Updates by email are available.
Daily Free Books (UK) monitors Amazon (UK) for its daily free offerings. They offer genre selection as well as sorting by time (including since your last visit). They also offer free listings from Smashwords, which can be viewed with the Amazon offerings, alone or not at all (Amazon only). They have over 6,000 free ebooks listed.
Daily Free Books monitors Amazon for free offerings. Has hundreds of free listings daily. and offers excellent category listings. RSS feed available. Thanks to Frank Blake for this.
Daily Free eBooks does not seem to list as many freebies as the other sites in this section, but does offer detailed review and information on their listings. Offer email updates and RSS feed.
Digital Book Index posts a daily list of the Best Free Kindle Books which is a listing of the best rated limited time free ebook offerings from Amazon.
Digital Book Today has daily posts of limited time free ebook offerings from Amazon (USA), usually totaling about 35-45 ebooks per day. These posts are mixed in with some other posts about authors and books. They also post their own top 100 list of free ebooks at Amazon (USA).
eBooks Habit offers daily listings of free books from Amazon. Also has links to the top free books in several genres. Email updates available. Thanks to Buddy Elf for this site.
eFree Booksposts a large selection of limited time free ebook offerings from the several Amazon sites around the world (UK, USA, CA, DE, FR & IT). There are quite a few posts daily and each post is about a specific genre. Email updates are available.
eReader Cafe daily listings of free novels from Amazon. Seems to average about 5 per day, with detailed information on the book. Email updates available. Thanks to Caroline for this site.
eReader Girl when I first found this site, there were separate listings for the free offerings from Amazon. Subsequent to the change in policy at Amazon the site now posts the combined bargain and free ebook offerings from Amazon (USA). There still are a good number of free ebooks listed, with a good description of each book. The listings are separated into posts for each genre offered.
eReader IQ due to the changes in Amazon policy, they now offer an "abbreviated" listing of the limited time free book offers from Amazon. They have a nice selection of genres to narrow the listings.
eReader Love monitors Amazon (USA) for limited time free ebook offerings. There are only a few listed on the main page, but the 50 Most Recent Books page posts up the last 50 free ebooks. They have a wide range of genres to help narrow the search and the results there are more extensive than the main page. Email updates are available.
eReader News Today looks to come out several times a day with 5 to 10 free Kindle books at Amazon in each listing. They offer RSS updates.
eReader Utopiaposts a couple of limited time free ebooks from Amazon (USA) daily with detailed description of the free ebook.
FKB free kindle books lists the daily free entries at Amazon (updated daily). There are a few category listings. There is also a large listing of categories for the always free ebooks at Amazon. They offer RSS and email updates for all limited time offers or for each of the few categories they offer for the limited time free ebooks.
Free Book Dude has listings of free offerings from Amazon, with synopsis and review. Also features guest listings, where, generally, the author posts the listing and information. Listings are daily and though there is not the number of some of the other sites here, they do give more information on the free books. Offers RSS feed.
Free Books Hub USA lists a good number of daily free listings at Amazon with a detailed description of the offering. They have an RSS feed, but I could not find an email update option.
Free Books Hub UK posts several limited time free ebook offerings from Amazon (UK) daily. They offer RSS and email updates.
Free Booksy does not list only Kindle books (they also list Nook and Apple ebooks), but it looks like most of their listing are for free Kindle ebooks from Amazon, so it is worth a look. They also have a separate listing for free books for children, all of which appeared to be free kindle ebooks from Amazon.
Free Ebooks Blog posts limited time free ebook offerings from Amazon (USA) twice daily along with "hot deals". There is an option to sort by genre tag. Email updates are available.
Free eBooks Daily has free limited time ebook offerings daily. They do offer a complete description of the free ebook and often a short interview with the author. At first it does not look like the site has many offerings, but if you look at the Genre listings on the left, there are several thousand free ebooks listed here. The genre is very complete and shows how many books in each genre. RSS feed available.
Free eBooks Download is a Facebook page that monitors Amazon for limited time free ebooks. Looks like the site posts about 20 ebooks per day. Thanks to Finch for this listing.
Free Kindle Books and Tips not all of the listings are free (some are bargains) but this site does monitor Amazon daily for free Kindle ebooks and also free games.
Free Kindle Books UKmonitors Amazon (UK) for limited time free ebook offerings. Posts a large listing daily. The listing is separated into many genres, but there is not link to each genre.
Free Kindle eBooks has weekly updates of free offerings at Amazon, but has the nice feature of dividing these into genres. RSS and email updates are available.
Free Mystery Ebooks is a Facebook page that monitors Amazon for its limited time free ebook offerings in its Mystery category. Seems to be updated a few times per day and list about 5- 10 per day.
Free Read Feed (UK) has over 5,000 free ebook listings from Amazon (UK). They monitor recent free offerings as well as showing some that are always free. Like their USA counterpart below, the site offers sorting by genre, time offered, length and popularity.
Free Read Feed (USA) regularly posts, throughout the day, the limited time free ebook offerings at Amazon (USA). This is an extensive listing of the free ebook offerings, showing the genre (with option to exclude that genre or show only that genre in results) and the length of the ebook. They have some filtering options, length of ebook and date of free offering as well as a large genre listing option to exclude genres (click on Pick from a list).
Free Sci-Fi monitors Amazon for its limited time free ebooks in the Science Fiction genre. Email updates are available.
Free Stuff Times monitors Amazon daily for its limited time free ebook offerings. They post links to about 100 ebooks per day.
Gospel eBooks has listings of limited time offers on Christian ebooks at Amazon. A number of the titles did not appear to be religious oriented, but all were free and since the site is Gospel eBooks, I guess the books are Christian themed. Thanks to Dave Faulkner for this suggestion.
Great Books Great Dealshas a listing at Pinterest of permanently free ebooks at Amazon (USA). You have to click on the link back to their site within the description on Pinterest to get the link to the free ebook.
Heidoc offers search by genre of the limited time free offerings at Amazon. Daily updates by email are available and you have the option to select updates only for certain genre(s).
Hundred Zeros USA monitors the "Best Sellers" list at Amazon (referenced above) and has all the listings on one page. They offer RSS and eMail updates.
Hundred Zeros UK monitors the "Best Sellers" list at Amazon (UK) and offers RSS feeds for this listing for a great deal of genres.
Hunt 4 Freebies monitors Amazon for the limited time offerings of free ebooks and posts around 150 free ebooks daily. RSS feed, email updates and Kindle app are available.
I Crave Freebies monitors Amazon's limited time freebies and posts links to about one hundred of the free ebooks daily.
iLove Ebooks monitors Amazon for limited time free ebook offerings. Not as many listings as some of the others here, but gives a good description of the ebook and also offers category listings. An RSS feed is available.
Indie Author Clubnice collection for free ebooks at Amazon (USA). Excellent selection of categories and also language. They do have email alerts for new free ebooks. Thanks to Shawn for this site.
Indie Book Of The Day monitors Amazon for limited time free ebook offerings.
IndieHeart "Five daily hand-picked books by Indie authors (fiction only). There is a free books newsletter that is not loaded with ads (no ads at all) like some of the other sites that are trying to stay alive. There are also reviews of Indie Books and "The Reader's Blog" which just covers general stuff for readers who enjoy reading Indie books" Thanks to Jill (jillnojack) for this link and description.
Jungle-Search offers a listing of the latest 99 free ebooks on Amazon, which is updated hourly.
KeBooks the new location for former entry I Read Review, they post a daily (sometimes twice daily) list of the limited time free ebook offerings at Amazon (USA). They do show genres within the posts, but there is no option to see specific genre listings. They do offer email and Facebook updates.
Kindle Book Promos monitors Amazon (USA) for daily limited time free ebook offerings. You need to click on the daily free offerings link up top. They do also offer genre listings within the daily post.
Kindle Buffet monitors Amazon for limited time free ebook offerings. Not as many listings as some of the others here, but offers a nice review. Also check the Top Fiction and Top Non-Fiction pages for more free ebooks in a wide variety of genres.
Kindle Classics Blogspot highlights public domain free listings at Amazon (pre 1923) and has a detailed review of each title. The page says the links are to free or semi-free, but I found all the USA links to be free. The site links to USA and UK listings. RSS and email updates are available.
Kindle-Free monitors Amazon for free ebook offerings in 13 genres. RSS and Twitter updates are available for each of the genres.
Kindle Free Bookshas weekly posts of 5 free for a limited time ebooks from Amazon (UK & USA) as well as some special occasion free ebooks.
Kindle Nation Daily you have to scroll down past the advertisement for a pay book to see the free listings, but they appear to post daily and list a good amount of books each day. This site was previously listed here, but this is a new link to their display of the free limited time free ebook offerings from Amazon (USA). Also new is a separate listing of limited time Free Young Adult/Children ebooks from Amazon (USA). The dates I looked at had 20 or so free ebooks listed daily, with the vast majority being for younger children
Kindle Users Forum monitors free Amazon releases from the UK site. Seems to be a large daily listing. Has excellent category listings. Offers RSS feed. Thanks to Frank Blake for this.
Megaton monitors Amazon for free limited time offerings of Post Apocalyptic ebooks.
My Book and My Coffee posts several free for a limited time ebooks from Amazon a few times a week.
No Twiddle Twaddle monitors Amazon for free ebooks for children and post a few per day at the site and also links to a larger listing of free offerings via lists maintained by Bethany, the site owner, at Amazon's Listmania. Updates available by RSS and email.
One Hundred Free Books updates hourly free listings from Amazon. You have the option to choose the latest free offerings or from many category listings. They also offer Hand Picked listings. Email updates available. Thanks to Ed Crotty for this site.
Pixel Of Ink is another site that regularly posts free Kindle eBooks listings from Amazon.They offer email updates.
PixelScroll has free Kindle books listings as well as free Kindle Fire Apps and Free Kindle Fire MP3s listings. As with the other listings in this section, these are time limited offers. They do offer email and RSS updates, but those include non-free offerings.
Shelf Buzz handpicks limited time free ebook offerings from Amazon (USA) based upon the cover. Not sure what that means, but they do have about 5 of the daily freebies listed. Email updates are available.
Snick's Listmonitors Amazon (USA) for limited time free ebook offerings. Nice category selection available. Email updates available.
Sweet Free Booksis a daily listing of several limited time free ebook offerings from Amazon (USA). Email updates are available. Thanks to Tim9 for this site.
Sweetie's Picks monitors Amazon (USA) for limited time free ebook offerings and posts quite a few daily. Each book is released in its own article, so you have to go through several of the search pages to see all of the daily listings.
The Kindle Book Reviewmonitors Amazon (USA) for limited time free ebook offerings. Looks like they post up about a dozen a a time. They do offer email subscription.
The Vessel Project monitors Amazon for free Christian ebooks. After the change in policy at Amazon, they have now merged their free ebook listings in with their bargain price listings. On the days I checked, the free ebook offerings were at the end of the post.
World Library (Free Kindle books, Formerly Free Novel Books) this site lists free ebooks at Amazon several times per day. Sorts by ratings at Amazon. Click on "Still Free Kindle Books" up top to see more listings of free Amazon books.
World Literary Cafe has daily forum postings of limited time free ebooks at Amazon. Interesting twist here is that there are also postings for free offerings that will come up in the near future.
Your Daily eBooks only lists a couple of new free listings each day, but supposedly they limit their listings to the best of the free time limited book offerings. They do have RSS and email update options.
Other Sites With Free Kindle eBooks
These are some other sites that have free Kindle eBooks or provide links to them. These sites should be accessible to anyone. If registration is required, it will be noted in the listing. Most do not require registration. These are listed in alphabetical order. Many of these are available in Kindle compatible MOBI or PRC. For information on loading these formats in your Kindle, see here: Kindle FAQ.
Al Islam has a good sized collection of free Ahmadiyya Muslim ebooks for free download in MOBI, without registration. These are English translations. The downloads marked in MOBI are free. The ones marked KINDLE link to Amazon, where the ones I checked cost money even though same book as the free MOBI download.
All Romance Has over 1300 free ebooks available for free download in Kindle compatible MOBI (as well as other formats). Free registration is required. All are in the Romance genre.
Ancient Buddhist Texts a large collection of Buddhist works available for free download in MOBI without registration.
Archive Org has a huge collection of works. Navigating around is a bit of a pain. The link here is to American Libraries collection as that is the largest collection where all the books I checked were available in MOBI (under the Kindle download link). The Children's Library is another large collection where all the links I checked were available in MOBI. Other libraries and collections will also have MOBI downloads available.
Baen Free Library is a collection of free science fiction novels that are all available for free download in Kindle compatible MOBI format.
Baen CD at the Fifth Imperium has many of the same entries as the Baen Free Library link above, but appears to have some different entries, so I posted this link up. The downloads are in ISO or CD, which will show the various books included in each link in each of the many formats available, including MOBI. This is not as convenient as the Baen Library as the download is larger and all the titles on a CD need to be downloaded. Still there does appear to be more free titles here.
Ben and Me Marcy, the "Me" of the site name has put together a very impressive listing of ebooks for children that are always free at Amazon.
BooksShouldBeFree While primarily a great source for audio versions of public domain classics, this site also offers ebooks downloads for every title, including a Kindle eBook download (MOBI) Nicely divided into categories.
Bring The Books has a large collection of free Christian themed ebooks available for free download in Kindle compatible MOBI or PRC.
Central Seminary offers three free ebooks for free download in Kindle compatible MOBI. These are Christian themed works.
Chris Slusser offers 3 of his novels for free download in MOBIpocket (PRC) (as well as other formats).
Classicly offers "23,469 of the world's greatest free books". These are available for free download in several formats, including Kindle (AZW). Thanks to Tyler G for this suggestion.
Cooking With Us offers 65 free cookbooks for free download in AZW.
Craphound offers the free Cory Doctrow ebook, For the Win, for free download in a variety of formats, including AZW.
Cthulhu Chick offers the complete works of H.P. Lovecraft for free download in MOBI.
Desiring God has 14 free ebooks available for free download in Kindle compatible MOBI (as well as EPUB and PDF). These are Christian themed works.
DigiLibraries has over 20,000 free ebooks in a wide variety of genres. All are available to read online and all are available in Kindle compatible MOBI.
Dr. Widger's Library Project Gutenberg Australia offers the extensive collection of books from Dr. Widger for free download in MOBI without registration. This link is to the collection of ebooks with images, there is also a page for MOBI ebooks without images.
eModern Buddhism offers the 3 volume work, Modern Buddhism, for free download in MOBI (as well as EPUB and PDF).
Falbe Publishing offers two free fantasy ebooks by Tracy Falbe for free download in MOBI. The link for the download is sent by email, so a working email is necessary for the free download.
FeedBooks has about 5,000 free ebooks available for free download in MOBI in their public domain section. They also have about 3,000 free Kindle ebooks (MOBI) in their Original Books section. You have to go to the details page for the book and click on the "Kindle" link. They separate the free listings in to a large variety of categories to help narrow your search.
Felicity Heaton offers her vampire romance novel, Reunion, for free download in a variety of formats, including a free download at Amazon. (registration there will be required).
Freebook Sifter has links to over 37,000 free ebook offerings at Amazon. Separate pages for many categories and listing in order of average rating are acouple nice features here. Also nice is their listing of Added Today, which had over 1600 free ebooks when I looked. Thanks to Rob Schifreen of our site for this entry.
Free e-books For Kindle very nice collection of free Kindle ebooks (PRC). These are classics in the public domain. Sorting by author or title.
Free Homeschool Deals the page that I previously linked to here is no longer available. This link is to a search for Kindle at the site and has a good number of free ebook pages (all the ones I saw were to Amazon USA) listed.
Free Kindle Books and Tips has direct links to Amazon (USA) for the always free offerings in a large listing of categories.
Free Kindle Books Org is an excellent source for free Kindle ebooks. They have their own large supply of free eBooks available for free download in Kindle compatible PRC or MOBI. Also, they have a great feature called the Magic Catalog of Project Gutenberg Free eBooks, which has listings of 29,000 free eBooks at Project Gutenberg. There are two catalogs available (EPUB and MOBI). For Kindle, you would get the MOBI catalog and the Magic part is that the Catalog consist of links that you may click on for a direct download of the MOBI version of the eBooks from Project Gutenberg.
Get Free eBooks is a blog listing of free ebooks that has a Kindle only section. Many of these offerings are time limited. RSS and email updates are available.
Gizmo's Freeware editor Rob Schifreen, who maintains the Hot Finds section here at Gizmo's has posted a link to 60+ free books from Microsoft. All the books are available in Kindle compatible MOBI for free download without registration.
Goodreads has a listing of "Popular Free Kindle eBooks". The listing says there are over 11,000 free ebooks in the list. This is a mix of newer works and classics, though the vast majority appear to be newer works. They all appear to be free a lot of the time. All of the works I checked were available at Amazon, through the "Online Stores>Amazon" link on the description page for the ebook. There is a similar listing of 159 free Kindle eBooks for Young Adults.
iBook Nook offers 50 free ebook classics for download in one zip file. These are formatted in AZW.
Keep Believing has 4 free Christian themed ebooks available for free download in Kindle compatible MOBI.
Kindle Free Books (Twitter) provides links to free Kindle compatible ebooks at Amazon (USA) and Feedbooks.
LDS Tech the Mormon church site offers the Bible the Book of Mormon and some other Church works for free download in MOBI.
ManyBooks has over 29,000 public domain works all of which are available for download in various formats, including Kindle compatible AZW, MOBI and PRC.
Martin Kolacek offers his science fiction comedy novel, Grunt RX-10, for free download in PRC, as well as in audiobook (MP3).
MathBlog has links to 5 free KINDLE books at Amazon USA (residency and registration required) from the CK12 Org. James A Jenkins has also put together a list of different free Kindle books from CK12Org.
Max Moxon offers his 22 free travel related ebooks for free download in MOBI. These are all released under a creative commons license.
Michael Hicks offers two of his science fiction novels for free download at Amazon (as well as other places).
Miscellaneous is a blog where the creator has fixed up the Magic Catalog of Project Gutenberg Free eBooks (offered by Free Kindle Books Org above) to sort the ebook offerings better.
MobileRead Forums is a forum listing of 6,611 free MOBIpocket (PRC) eBooks available on the internet. These listings are added daily, but from what I saw they were not time limited. A complete collection of the Harvard Classics in MOBI format is available for direct download at the site.
Mobipocket is owned by Amazon, but you can get the almost 10,000 English language books here in MOBI for free without registration. Also, almost 2,000 titles in other languages. Sorting by language and category available.
Mongerism has a good sized collection of free Christian themed ebooks in Kindle compatible MOBI format. These are listed on the bottom half of the page linked.
Mr. Piggie a nice collection of classic novels available for free download in MOBI without registration. There is sorting by author name available. eMail updates of new works are available.
Munsey's offers "over 30,000 rare and hard to find titles in 10 formats". Among the formats for their free ebooks are MOBIpocket (PRC) and KindleFire. These free ebooks listings are also divided into many categories.
Munsey's Mobile also has a large collection of free ebooks and all are available in 5 different formats, including Kindle compatible PRC.
Murray and Madelief two writers from different parts of the world who collaborate online and who have posted a fantasy short story and chapter 1 of a science fiction novel, both of which are available for free download, without registration, in Kindle compatible MOBI.
NASA offers 11 free ebooks on Aeronautics for free download in MOBI without registration.
Online Library of Liberty 30 classic works available for free download in MOBI without registration.
Open Culture has links to 375 free ebooks offered in Kindle format (as well as other formats). Most of these are classics, but there is a decent collection of Philip K Dick and a couple of other more recent works.
Open Library claims to have over 1 million free ebooks available. Many of the ebooks available are offered in the many different version which were published. So the same novel may available in quite a few different versions. So they may not have 1 million different novels available, but they sure do have a lot. Every version of every novel that I looked at was available for MOBI download, as well as having a "Send to Kindle" option. (they are also available in other formats)
Open Library (Classic Cookbooks) Antilope a poster at the cooking.com fora, has put together a great list of links to cookbooks from the late 1800s and early 1900s. The links go to a read in your browser format. In the upper left hand corner is a link to go to Open Library, where you will have the MOBI download and the Send To Kindle option mentioned above. The forum site is no longer up, so this link now takes you to the Wayback Machine image of the page. All links from the page are still working. Thanks to Bast for the update on this site.
Passica a forum with postings of several hundred classic works available for free download. The vast majority are available in Kindle compatible formats of MOBI etc. There are also sections for Kindle apps and Kindle help. Thanks to John45 for suggesting this site.
Project Gutenberg (USA) has many thousands of public domain works available in their mobile read section. All of these are available in a free Kindle compatible format (from what I saw the Kindle ebooks were all MOBI format). There may also be free Kindle compatible eBooks available elsewhere on Project Gutenberg as they offer all their works in a variety of download formats and this listing may not contain all the Kindle compatible eBooks.
Providence Baptist Ministries has 56 free Christian themed ebooks available for free download in MOBI without registration.
Retro Read offers the free public domain books at Google Books in Kindle compatible MOBI format. They will convert a listing for you, but also have a large offering of already converted books available for immediate free download.
Rifters offers 4 of Peter Watts novels for free download in PRC. Click on the image of the novel cover to see the download link.
SF Book Reviews has 24 free ebooks available for free download in MOBI without registration. These are all science fiction themed. Some are classics and some are newer works, with a few unique entries not found elsewhere.
SF Signal monitors Amazon for limited time free ebook offerings in its Science Fiction, Fantasy and Horror genres. Also monitors other sites for free ebook offerings in those genres. All appeared to have Kindle compatible downloads.
Small Beer Press offers 5 free novels, under creative commons license, for free download in a variety of formats, including MOBIPocket.
Smashwords has a very large collection of free ebooks from independent authors and publishers. These are available for download in a wide variety of formats, including Kindle (MOBI)
The Plough offers a good sized collection of free Christian books in Kindle (PRC) format. Link fixed thanks to Geert
The Tibetan Drum this story of a man's spiritual journey across the globe is available for free download for free download in MOBI without registration.
Walking By The Way a very impressive listing of free ebooks for children for the Kindle from various sites on the web. Information on the appropriate age group for the various offerings is given.
Zane Grey Books nice collection of Zane Grey novels, most of which are available for free download in Kindle compatible MOBI without registration.
Zen Beast lists both classic and recently released free ebooks at Amazon. They also post free magazines, newspapers and blogs. There are some ebooks that cost money mixed into the results, but they are easily identified. Thanks to Leon Finch for this listing.
ZooAlert offers a search similar to Jungle Search for free ebooks at Amazon (USA). This search allows searching in a large number of categories and is very quick.
During my searches online, many of the results returned were for local libraries offering free Kindle ebooks. Many of these offered a direct sync to a Kindle device (no visit to the library necessary). You will have to have a valid library card to use these services. This is a resource that may well be worth checking out.
Overdrive is the site to use to access your library online for free Kindle ebooks. It will help you find a branch near you that has this feature. You must have a valid library card and PIN. If you are using a Kindle device, then you must be on a Wi-Fi network. Some more information on this at Amazon Help: Public Library Books For Kindle. This service may also be used if you have Kindle software and not a device. These downloads go through Amazon, so the restrictions mentioned at the beginning of this article apply.
Groovypost has a guide on using Overdrive to check out books at your local library which looks to be very useful.
Hopefully this listing will help you in easily finding free ebooks that you are interested in for your Kindle device or application. If you have any suggestions as to additional sites, techniques or how to make this guide clearer, please post in the comments section below.
To those who post a thanks in the comments, I do not post back as this spreads the comments out. However, I do read every comment posted and do appreciate the thanks. So I will say here to those who post a thanks: Thank you. I appreciate that.
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