Similar Subreddits
GitHubType a subreddit and see the communities where the same people comment.
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How it works
Two subreddits are similar when the same people comment in both. The score is the share of commenters they have in common: people in both, divided by people in either (the Jaccard index). Each subreddit keeps its closest ~10.
It works best for subreddits under about a million members. In the very largest ones almost everyone overlaps with everyone.
Use it in Python
pip install git+https://github.com/alramalho/similar-subreddits
from similar_subreddits import similar
similar("loseit", k=5)
# ['progresspics', 'CICO', 'WeightLossAdvice', ...]similar-subreddits loseit
No dependencies. The data downloads once on first use.
Data
265,758 subreddits from anvaka/redsim by Andrei Kashcha, computed from public Reddit comments and last refreshed in August 2023. Subreddits created after that are missing.
Everything runs in your browser. Nothing you search is sent anywhere.