open-spaced-repetition/fsrs-browser

FSRS for the browser, including Optimizer and Scheduler

stars

196

commits

Rust

primary language

Jun 14, 2026

updated

www.npmjs.com/package/fsrs-browser

fsrs

machine-learning

rust

spaced-repetition-algorithm

wasm

Browse cluster: Spaced Repetition & FSRS Algorithm →

README

fsrs-browser

This project runs fsrs-rs in the browser with support for training FSRS parameters.

Versioning

fsrs-browser's major and minor version numbers will match the version of fsrs-rs used. The patch version number is reserved for fsrs-browser's use and may drift out of sync with fsrs-rs.

Building and demoing

Run ./dev.sh for fast builds or ./prod.sh for fast runs.

Run the /sandbox project to demo various behavior.

I highly encourage ./prod.sh if you intend to run training. On my machine training 24,394 revlogs on ./dev takes days, while ./prod.sh takes 3.5 seconds.

Contributors

152 commits

24 commits

16 commits

3 commits

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open-spaced-repetition/fsrs-browser

FSRS for the browser, including Optimizer and Scheduler

stars

196

commits

Rust

primary language

Jun 14, 2026

updated

www.npmjs.com/package/fsrs-browser

fsrs

machine-learning

rust

spaced-repetition-algorithm

wasm

Browse cluster: Spaced Repetition & FSRS Algorithm →

README

fsrs-browser

This project runs fsrs-rs in the browser with support for training FSRS parameters.

Versioning

fsrs-browser's major and minor version numbers will match the version of fsrs-rs used. The patch version number is reserved for fsrs-browser's use and may drift out of sync with fsrs-rs.

Building and demoing

Run ./dev.sh for fast builds or ./prod.sh for fast runs.

Run the /sandbox project to demo various behavior.

I highly encourage ./prod.sh if you intend to run training. On my machine training 24,394 revlogs on ./dev takes days, while ./prod.sh takes 3.5 seconds.