Patch Kindle for Mac in 2024

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Important Update:

Do I still need to patch Kindle for Mac when using the latest Kindle for Mac? — There is no need to do so.

Epubor Ultimate can now handle Kindle KFX books downloaded via the latest Kindle for PC/Mac, including 2023 Kindle books. You can update your Kindle for Mac to 1.40 to download kindle books. You can also update Epubor Ultimate to the latest version for free to handle your new purchased kindle ebooks.

Download Epubor Ultimate for free:


Download Kindle for Mac 1.40 HERE

Download Kindle for Mac 1.40

remove kindle drm

Have you upgraded your Kindle for Mac to version 1.40? If so, you may have noticed that you now get thekindle kcr format instead of the old Kindle format. Is there a way to download the older Kindle format using Kindle for Mac? Yes, it is possible to download the older Kindle format and even remove Kindle DRM with Kindle for Mac version 1.31, but not with version 1.40. However, you need to patch Kindle for Mac 1.31 in order to do this. If you want to know how, keep reading.

If you're using macOS 10.14 or an older system, downgrading kindle for mac to old version is all you need to do. You just need to downgrade Kindle for Mac to an older version, and then you can download Kindle books in the old Kindle format.

However, if you're using macOS Catalina or a later version, please follow the steps below to patch kindle for Mac for decrypting your Kindle books smoothly.


This method is published by odamizu and initially posted on MobileRead Forum.

Note Please ensure your Kindle for Mac is older than 1.32 because books downloaded via kindle for Mac 1.32 is unable to be cracked. If you've already installed the kindle for MAC 1.32 or later version, please uninstall it and then download & install kindle for MAC 1.31.

Download Kindle for Mac 1.31

Step 1. Remove downloaded kindle books from computer at first.

remove kindle books from computer

Step 2. Close Kindle for Mac and open the terminal window and input following code:

chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test

Some users will fail to remove Kindle DRM even if they have executed this command. That's because some of you don’t have the root privilege to stop the render-test program. To ensure you remove Kindle DRM successfully, please add Sudo before the above command.

sudo chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test

When you put the above code in the Terminal and then press “Enter”, you will be requested to fill in your computer passwords. Just fill in it and press “Enter” again. All done.

stop render-test

Step 3. Re-download Kindle books.

Note: Please right click on the book title and then select “Download” from the drop-down menu. Or download from the menu bar “File-->Download”.

download kindle books


If you double-click on the book title to download the Kindle book, you will receive the Kindle KCR format with the latest DRM scheme which cannot be stripped at the moment. Therefore, please ensure that your books are downloaded correctly. Additionally, please do not open or read your downloaded books before removing Kindle DRM. Otherwise, the Kindle files will be converted from .azw to .kcr, which cannot be cracked for now.

download kindle kcr books

Step 4. Remove Kindle DRM on Mac with Epubor Ultimate---the best ebook DRM Removal and converter.


When you run Epubor Ultimate, it will detect the Kindle books and display them on the left column under the Kindle tab. Simply drag the books to the right column, and the Kindle DRM will be successfully removed.

remove kindle drm

If you have a kindledevice, you can follow the Ultimate guide to remove Kindle drm 2023 or watch the below video to remove kindle drm.

If you still have not updated your MacOS system to 10.15 Catalina or later version, please read How to Remove DRM from Kindle Books .


Tip: After executed the above command, your kindle for Mac may be crashed every time you open it, you can reverse to it to the original by using the following command: sudo chmod +x /Applications/Kindle.app/Contents/MacOS/renderer-test.


has been a passionate member of Epubor since 2017. Her mission is to enhance your ebook reading experience by sharing insightful tips and tricks. Join her on a journey towards reading excellence today!

08/21/2020 18:25:29
Excuse me, but the link - use KCR Converter to convert Kindle cloud reader to epub/azw3/mobi - doesn't work, you can fix it? Thanks
08/23/2020 07:33:51
Thank you for asking. The kindle cloud reader doesn't support the offline reading. Therefore, your kindle cloud reader cannot be downloaded via kindle cloud reader.
It is out of our control. If you can download kindle cloud reader, then epubor kcr converter can still handle them.
Anyway, we are sincerely sorry for this issue.Also, we offer  the some workaround. Please contact support@epubor.com to get further assistance.
08/24/2020 23:05:32
Hello, this is the second message I placed, the first one was not published and I did not understand why. I ask you if you can fix the link at the top - use KCR Converter to convert Kindle cloud reader to epub/azw3/mobi - because it doesn't work and I don't know how to proceed since my Mac system already updated to Catalina but I never use Epubor Ultimate before. Thanks
08/25/2020 09:14:00
Thank you for using our software. The KCR CONVERTER only handles the kindle cloud reader books. But now there kindle cloud reader books cannot be downloaded any more. This is decided by Amazon. So no, kcr converter doesn't work any more.
We are sincerely sorry for the inconvenience caused.
09/10/2020 06:59:22
Can we get a $15 discount on the lifetime purchase of Ultimate since KCR no longer works.
09/10/2020 10:09:15
Thank you for contacting us about this issue. Sure, we will help you get this issue fixed via email.
01/11/2021 02:55:32
I have Big Sur and while it did take me a while to navigate through all the help files and decipher the best way to pull off converting these files it did end up working. Using the sudo command in terminal and then downloading again made it possible. Thank you. I appreciate the hard work you guys put into this as I know it is hard to write support for so many different variables. A+ to you and your team.
01/11/2021 09:53:57
Thank you for your comments. We've also received the tickets you created.
We've tested your license and ensure it can register well at our side.
Please try to register it again. If you are still failed, please let us know. We'll help you check this issue via Teamviewer.
We are sincerely sorry for the inconvenience caused.
03/4/2021 04:20:32
This software no longer works to convert amazon kindle files.  Such a shame
03/4/2021 09:16:45
Thank you for using our software. Epubor software still can remove drm from amazon kindle books.
If you have any issue on removing kindle drm, please feel free to contact us via support@epubor.com to get further assistance.
03/9/2021 18:50:35
When I download the kindle book to my computer and try to strip the DRM, epubor tells me that it is a rental book and cant strip the drm, but they aren't rental books. I paid for them. How to I get around this. I contacted support and created a ticket for this but noone has gotten back to me and I'd like to get it resolved soon or get a refund.
03/11/2021 09:03:26
Thank you for using our software. First of all, please ensure you are using the latest version of Epubor Ultimate. You can download it on here: https://www.epubor.com/ultimate.html
Secondly, we've already sent the email to you. Please check your mailbox, even spam.
03/16/2021 10:42:44
I used Epubor Ultimate and it not longer works for kindle azw3 files…
03/17/2021 10:43:15
Thank you for using our software. Can you please describe your problem more clearly as Epubor Ultimate is still supporting AZW3 file? Can you please screenshot and send it to our support@epubor.com? Then we will help you fix it ASAP.
03/17/2021 18:57:29
is it normal that the software only converts the first 20/30 pages of the ebook?
thank you
03/19/2021 09:00:46

Thank you for asking. Are you using the trial version of Epubor Ultimate?
Please note that the trial version of Epubor Ultimate only converts 20% content of each book. To obtain the full content, please upgrade it to full version.
Any more problem, please feel free to contact us via support@epubor.com

03/31/2021 18:18:38
after running the sudo command, downloading and convertig kindle books to pdf-files, I can no longer use the kindle app to read books/ display book contents. The kindle app crashes. Even reverting the chmod command (sudo chmod +x …) does not help. Any advice?
04/6/2021 09:56:51
Thank you for your comments. Please use this command: sudo chmod +x /Applications/Kindle.app/Contents/MacOS/renderer-test.
Then you need to redownload your kindle books again.
04/5/2021 08:43:52

Hi Would you send an email to me for the below issue?

1. Not decrypt a book: The trerasury of David: The Complete Seven Volumes (Best Navigation) 8.18MB
2. Cannot upload here png or pdf Screen Shot.


ST Lee

04/6/2021 14:47:41
Thank you for your comments. We've contact you about this issue via email. Please check your email box later.
04/5/2021 08:49:11


I cannot decrypt a Kindle book (azw3): The Treasury of David (8.18MB).
Please send a corresponding email for this case as I cannot upload the screnshot in any format of png & pdf.


SungTae Lee

04/7/2021 08:15:14

Hello, I just finished using your software on my mac with kindle version 1.30 and Big Sur OS. It definitely works and I am very happy with it. If I could make a few suggestions that I think will help you and other buyers. It wasn't working at first and then in one of your explanations I saw where you said to make sure Kindle was off while I convert my files. I had not remembered reading that in any of the other write ups and that's what it took to work. Second...after converting the files, my kindle would crash. I remembered seeing the terminal command in one of the reader comment sections to reverse what I had performed prior but it took me a while to find it. I would suggest that everywhere you put the thermal line to change Kindle, you would include the terminal line to change it back the way it was. Lastly, you have done a tremendous amount of work on this product and depending on what your source is and what you are converting it to, it can be somewhat overwhelming which directions to follow. For a bit, I even tried to go back to kindle version 1.23 but then realized that that was a 32bit software and those instructions wouldn't work for me. If you had a page that had a decision tree or algorithm where at the top  you  start with your source material identification after a few other pertinent questions that guide you different directions down the algorithm, end with your destination choice and there would be a link to directions specific to your situation that would be fantastic. I really liked the video  you put in the KFK section to confirm my steps were correct.

Again...love the software and will be a great resource to have from now on.


04/7/2021 09:07:28
Thank you for your comments and advices. They are really helpfuL.
07/13/2021 07:34:49
No hay caso, seguí todos los consejos 3 veces y no funciona!
07/13/2021 09:04:16
Can you please describe your problem more clearly? Can you please screenshot and send it to us via support@epubor.com? Then we will help you fix this issue remotely.
Look forward to your early reply.
05/1/2021 01:25:51

Thank you so much for this!  It worked perfectly for months, but I tried opening my Kindle app this morning to download some books and it will no longer open on my Mac (OS 10.15.7).  I opened Terminal and entered the command again in case it had somehow gotten erased (can that even happen???) but it still won't open.  

Any advice?

05/6/2021 09:34:53
Thank you for using this method.
Do you mean that your kindle for Mac cannot open anymore on Mac catalina? Please close the kindle app and you can reverse to it to the original by using the following command: sudo chmod +x /Applications/Kindle.app/Contents/MacOS/renderer-test.
Then try to open the kindle for mac again on your Mac platform.
Any more problem, please feel free to contact us via support@epubor.com
05/14/2021 20:47:48
Using the Kindle version 1.31, even tried with 1.26 on Big Sur 11.1. I put the awz file and drag it but the error persists.
05/14/2021 21:47:47
See below for the solution.
05/14/2021 21:35:39

Ok so here is the guide for people that have Big Sur 11.1
1. Go to mac.filehorse[DOTCOM]/download-kindle-for-mac/
   1.1 and select OLDER VERSIONS from the tab
   1.2 download the 1.26.1 version of kindle

2. Then to stop the kindle from updating !
   2.1 Amazon has gotten aggressive with forced auto-updates, even if you have unchecked auto-updates in
   Preferences. To get around this, go to User > Library > Application Support > Kindle folder and
   replace the "updates" folder with an empty txt file named "updates" (no extension)
   apply chmod -w to the "updates" folder. After you do that, K4Mac will ask if you want to download a
   new version every time you launch the app, and you can choose no.

3. Folow the guide on this page:
   3.1 - Remove all books
   3.2 - Run the terminal command - sudo chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test
   3.3 - Right click then download
   3.4 - Run Epuber and convert the book

08/1/2021 02:27:55
I WANT A REFUND!!!!! I have tried several times to remove drm. I followed the instructions here. In terminal I get a message "no such file or directory" when I type in the sudo chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test. Kindle still downloads the same file type even when I try the right click method as described.
08/1/2021 02:31:15
I meant to give this 0 stars, but it auto selected 5 stars. THIS PRODUCT SUCKS!!!!!!!!!!
08/1/2021 09:21:31
The most recent update to the Kindle app changed something. Downgrade to Kindle 1.31 and these instructions work again.
08/2/2021 09:55:12
Thank you for your feedback. Yes, the latest kindle for PC1.32 has changed something and please downgrade your kindle to 1.31 and then follow this guide to remove kindle drm.
08/8/2021 23:15:01
If you would have read my comment, I am using a Mac, not a PC. The old versions of kindle do not run on Big Sur 11.4 Mac OS, so I am stuck with the current kindle app. And following the instructions for typing in a terminal command get a response "no such file or directory". This product is useless.
08/9/2021 09:21:49

Thank you for using our software and sincerely sorry for this issue. That's because the kindle app 1.32 has changed something. To remove kindle drm, please install kindle for MAC 1.31 and then run the command to avoid the kindle kfx format. Please follow this guide to get this issue fixed: https://www.epubor.com/updating-kindle-for-mac-to-132-or-higher-will-prevent-you-from-removing-kindle-drm.html

Any more problem, please feel free to contact us via support@epubor.com.

08/14/2021 01:32:32

i bought epubor today and spend all day trying to make it work with no success.

i am in the exact same situation as Marion (owner of Mcbook air) and followed the instructions to the letter, even download older version of kindle, looked at all your videos, tutos, FAQs and whatnot but when it comes to the input on the terminal, i have the same message "No such file or directory" which is blocking me once i want to convert my book.

You do have great reviews so please find us a solution or please make a commercial gesture and give us a refund.

08/16/2021 15:30:26
Thank you for using our software. We've contact you soon via email to help you fix this issue.
11/22/2021 04:43:06

Glad I checked the comments and found this - I think because I was jumping around these articles/tutorials and they're not all updated accordingly I did not think downgrading to Kindle 1.31 would work (another epubor article states that downgrading will not work on Big Sur).

Anyways, I was able to successfully downgrade within the epuborUltimate app (trial). The process was unbelievably easy and smooth for me. Command line worked properly after doing so but very important that the command is entered PRIOR TO opening Kindle 1.31 after downgrade.

Had some minor issues getting Ultimate to find my downloaded Kindle books (they were not automatically showing up in the list) but was able to resolve this by redirecting my Kindle downloads in the Kindle app to a folder I created on my desktop. Altered the Kindle Source Location to that same desktop folder in Ultimate. Tested two ebooks this way and seems to be working perfectly now.

Wanted to share in case anybody else is still having issues. I'll be purchasing the full version now.

04/7/2022 23:38:41
8 months later and still no fix. After I wasted my money buying a new computer, my paid-for version of epubor-ultimate would not run on it. I had to buy this version. And it never worked. I went through these instructions many times, making sure I didn't miss a space or something when I typed in the command, etc and still doesn't work. I am using MACOS Monterey 12.0.1, and have tried with kindle 1.31. Anything older (someone suggested 1.26) does not work with this OS.  I am so F*CKING frustrated. I have used older versions of this software with no real problems on older computers. I bought a $2000 machine that I can't use for a simple task. I have to connect my old computer and use an older version of (where I get constant pop-ups that registration code is expired) to remove drm from kindle, then put them on a flash drive, pack up the old computer and move the files to the new computer. Such a hassle. 8 months ago I had planned on selling my old computer when I bought the new one, but I can't because I still need it for this one single thing.
08/8/2021 23:11:11
the previous versions of kindle will not run on my computer, using mac OS 11.4
How can you sell a product that does NOT work??!!!
08/9/2021 09:35:04

Thank you for using our software and sincerely sorry for this issue. That's because the kindle app 1.32 has changed something. To remove kindle drm, please install kindle for MAC 1.31 and then run the command to avoid the kindle kfx format. Please follow this guide to get this issue fixed: https://www.epubor.com/updating-kindle-for-mac-to-132-or-higher-will-prevent-you-from-removing-kindle-drm.html

Any more problem, please feel free to contact us via support@epubor.com

12/6/2021 00:48:32
So 4 months later and still no support.
I am using Mac version Kindle 1.31 as suggested. I typed in the command in terminal exactly as stated. The file that downloads IS a .azw. I still get "failed" when dragging and dropping the file into Epubor Ultimate.
I don't understand why you want to scam people by selling a product that does not work. Only to collect people's money and never offer support, no replying to emails, and refuse to give refunds.
12/7/2021 10:17:58
Thank you for contacting us. We've checked out mailbox but still have not received any refund request. Our technical support staff Alice will contact you about this issue. Please don't worry. Our software can handle kindle drm and we will help you soon.
04/7/2022 23:47:48
I just noticed this reply months later. What do you mean check mailbox? I paid via paypal. When I asked for a refund, I was COMPLETELY ignored, so I tried to get a refund directly through paypal with a dispute. Your company showed that I had downloaded the file and paypal resolved the issue in your favor. I did actually download a file, yes. But it doesn't work.
08/22/2021 04:55:51
Thank you. I have used your software and followed the instructions you provided on this page and I was able to decrypt a Kindle book.
08/23/2021 10:29:13
Thank you for your feedback and glad to know that your ebooks have been decrypted. Have a nice day!
02/5/2022 06:14:05
On a book I bought recently I did try to use epubor again (after a long hiatus) and I got a message suggesting the book is rental (it is not). Do you have any suggestions? Do you need a snapshot of the message?
02/7/2022 11:20:54

Yes, please screenshot and send it to us via support@epubor.com. Then we will try our best to help you. Also, you can try to fix your problem by following this instructions at first: https://www.epubor.com/updating-kindle-for-mac-to-132-or-higher-will-prevent-you-from-removing-kindle-drm.html

Look forward to your early reply.

02/18/2022 05:27:47
It dosen't work anymore... I bought the application last summer and it worked great. I downloaded the 1.31 version again, because Kindle automatically updated itself to Kindle 1.33. When I type the codes into terminal, Kindle closes and opens again and have updated it-self to the 1.33 version and the book I want to convert is locked and not able to convert to Epub... What to do? I have tried 3 times installing the 1.31 and it dosen't work - tried a month ago - same thing... The 1.17 and the 1.23 version can't get downloaded to my desktop... I have Catalina 10.15.7 and I can't find any older versions online...
02/18/2022 14:22:06

I am in the same boat
MacOS Monterey v12.1
epubor ultimate
verified and documented Kindle device ID
Kindle version 1.26.1 for mac
ran sudo chmod -x.....
downloaded books via Kindle app
used Epubor Ultimate

getting KFX error

Worked before just fine, could it be the version of Mac OS ???  

any help would be appreciated (BTW, long time supporter of this group, thanks for having this solution)

02/22/2022 09:15:29
Our customer support team have contacted you via email and try to help you fix this issue.
02/23/2022 20:45:14
I have not recieved a mail from you...
02/28/2022 10:00:43

Thank you for contacting us. Please check your mail box again, even spam. We've sent the email again to show you how to fix this issue. Please don't worry. If you still have not received the email, please just feel free to contact us via support@epubor.com.

Have a nice day!

03/1/2022 03:31:21
thanks so much, I just replied... appreciate the help.
04/11/2022 00:26:30
I am running Big Sur. Before I run through all the steps is this working or not ? Seems it becomes unstable rather quickly. I do apprecure the effort.
08/15/2022 22:43:22

It dosen't work anymore... I downloaded the 1.31 version. When I type the codes into terminal, I get following Message: Applications/Kindle.app/Contents/MacOS/renderer-test: No such file or directory

What to do? I have tried it a few times without any success I have Catalina 10.15.7

12/24/2022 06:21:23
I downloaded the 1.31 version, I copied the chmod code into the terminal, when it didn't work I tried the sudo command.  It says no such file or directory. I get following Message: Applications/Kindle.app/Contents/MacOS/renderer-test: No such file or directory
I don't know what to do now.
Thank you for any help you can give me!
12/26/2022 17:01:13
Thank you for using our software. When no such file message pops up, that means you are still using the higher version 1.32 or later version to download kindle books.
Please install kindle for mac 1.31 and then run the command. If you are still failed, please contact us via support@epubor.com to get further assistance.
12/26/2022 09:30:09

Hi. I'm on MacOS Ventura, and have downloaded the 1.31 version. After entering the command "sudo chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test", I get the error message "chmod: Unable to change file mode on /Applications/Kindle.app/Contents/MacOS/renderer-test: Operation not permitted"

I have administrator access. Please help? Thanks

01/18/2023 16:17:25
+1 Similar issue for me
01/28/2023 11:31:40
Thank you for your message. Please uninstall the kindle for mac and reinstall the kindle for mac 1.31 again. Then run the command. We've tested it again and it still works well. Please try agan.
01/31/2023 09:39:12
Thank you. This solution worked perfectly for me.
01/5/2023 12:12:18
Some newer books on Amazon can't be downloaded with the 1.31 Kindle. They require updating to current 1.39 version. Which works in Kindle but epubor software can't deal with DRM.
Using Mac Ventura 13.0.1
01/16/2023 10:22:13

We aware of this issue. It seems the amazon kindle has changed something in the new published kindle books. It requires the latest kindle app to download it.

Now we are working on this issue. Once there is a solution, we will let you know.

There is still another way to remove drm from this kind of kindle books if you have any kindle eink device registered with your amazon account. Please download the kindle books via "Download and transfer via usb" and then remove kindle drm with Epubor Ultimate. Here is the detailed guide: https://www.epubor.com/how-to-remove-drm-from-kindle-kfx-ebooks.html#meth4

04/14/2023 09:44:46
Is there any update on this issue? I have epubor ultimate and would like it to work.
06/12/2023 17:27:23

La version d'essai ne convertis que 20% du livre, autrement il faudra débourser 30$, même pour un seul livre... j'ai voulu effectuer l'achat puis je suis tombé sur la mésaventure de Marion qui a demandé remboursement car ça ne fonctionne pas de son côté (ça arrive) et s'est vu ignorée (le coup du "on a pas reçu votre email" c'est vraiment nous prendre pour des cons) et n'a pas obtenu gain de cause à sa demande de remboursement via PayPal car elle a téléchargé le logiciel (forcément, il faut bien pour le tester bande de débiles).

Bref, je comptais acheter le logiciel même si c'est cher pour juste UN LIVRE mais à la vue du foutage de gueule vis-à-vis de Marion, allez vous faire mettre, respectez vos clients !


02/27/2024 03:52:26

Does Work. ultimate with Kindle 1.31
MacOS 14.3.1  

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