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Fix invalid card IDs

<10kB. Updated 2021-11-26.
The author has shared 10 other item(s).


This simple add-on fixes invalid card IDs in your collection. After installing the add-on, restart Anki to apply the changes. For more information, see this forum thread. If you don't know whether you need to run this add-on, open Anki Card Browser and type added:1. If you see a large number of cards that you haven't added today, install this add-on to fix them. Anki will take a while to load the first time after installation.


As add-ons are programs downloaded from the internet, they are potentially malicious. You should only download add-ons you trust.

Supported Anki versions:

To download this add-on, please copy and paste the following code into Anki 2.1:


If you were linked to this page from the internet, please open Anki on your computer, go to the Tools menu and then Add-ons>Browse & Install to paste in the code.

All Anki 2.1.x Add-Ons Contact Author


on 1649868476
Fixed anki throwing errors when attempting to view card info.
on 1643058302
I was having trouble seeing card information in the browser and when opening the information tab (shortcut F4) of the "Advanced Review Bottom Bar" (https://ankiweb.net/shared/info/1136455830).
This addon fixed it all! Thank you very much!
Comment from author
this is so amazing to read! <3
on 1640729377
Works well, it fixed my collection.
on 1637892075
It works! Anki takes some time to open when first used.