supermemo
The premium Open Source alternative to SuperMemo (Commercial)
🎯 Best for:Developers building custom spaced-repetition applications.
What is supermemo?
Replaces proprietary spaced-repetition logic with a clean TypeScript implementation of the SM-2 algorithm. Provides a stateless functional interface for calculating memory decay and next-review intervals.
Tech Stack
TypeScriptEducation & Learning
Why supermemo?
- • Stateless implementation
- • TypeScript types
- • Well-documented algorithm
Limitations
- • Library only
- • No UI
- • Limited to SM-2
3/1/2026
Last Update
24
Forks
0
Issues
MIT
License
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Competitor Cost
-$1,440
/ year (est. based on SuperMemo (Commercial))
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%