Too many subdecks will slow down Anki. This tool can add tags to every note in a deck based on the subdeck(s) that their cards belong to and can automatically flatten decks in order to clean up those cluttered legacy decks.
This is a new add-on. Please back-up your collection before using the add-on in case any new bugs are identified. BUG: If you encounter a “Check database” error after using the add-on, please go to Tools > Check database. I’m working on making this automatic, but this will fix it in the meantime.
If something is not working, please follow this link to GitHub Issues, click “New Issue”, and follow the template. If you would like to contribute, please open up a GitHub Issue for a new feature request so we can discuss before/while you fork and open a pull request. This is my very first add-on so please be kind and give me some time to fix any errors before a downvote, thank you so much!
Happy studying! William Kariampuzha
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Reviews (4)
👍 2025-06-06
Did what it was supposed to and was easy to use. Seems to have sped up loading time.
👍 2025-06-06
Comment from author before post was edited Thank you for your feedback! I just added a demo. Best, Will
👍 2025-06-01
This is awesome and so smart! Thank you!
👍 2025-06-01
Worked super well for me!
