r/crypto
r/crypto is a Finance & Crypto community on Reddit with 345,820 members, ranking #89 of 2,433 in Finance & Crypto. Cryptography is the art of creating mathematical assurances for who can do what with data, including but not limited to encryption of messages such that only the key-holder can read it. Cryptography lives at an intersection of math and computer science. This is a technical subreddit covering the theory and practice of modern and *strong* cryptography.
How big is r/crypto?
Created in 2008, r/crypto has had over a decade to grow and is a large community by Reddit standards. Within Finance & Crypto it ranks #89 of 2,433 communities we track — the top 3.7% of the category by subscriber count. That puts it about 574× the median Finance & Crypto subreddit, which has 602 members. It is a work-safe community with no 18+ flag on Reddit.
For scale, the largest Finance & Crypto community we track is r/personalfinance with 21,774,649 members — roughly 63 times the size of r/crypto. Reddit itself launched in 2005, so a subreddit created in 2008 sits in the early wave of community building on the platform. Subscriber counts indicate reach, not activity — a large community can be quiet, and a smaller one busy. Open r/crypto on Reddit to see how often people actually post before deciding whether it is worth joining.
| Members | 345,820 |
|---|---|
| Category | Finance & Crypto |
| Rank in category | #89 of 2,433 |
| Created | 2008 |
| Category median size | 602 members |
| Content rating | Work-safe (SFW) |
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Subscriber counts come from the public Reddit API and are refreshed when this directory is rebuilt. Redditory is not affiliated with Reddit Inc.