Crates / Category
Rust crates · category · data Oct 24, 2026
Algorithms crates by real downloads
crates.io describes this category as: “Rust implementations of core algorithms such as hashing, sorting, searching, and more.” Below are the 18 crates in it among the 300 most-downloaded crates, ranked by real downloads (quiet-day baseline) instead of raw count.
Short answerBy steady daily use, rand leads Algorithms with 5,938,557 real downloads a day (foundational and steady). 10 of the 18 have 1,000+ dependents; 1 have shipped nothing in 2+ years. Release spikes barely matter here: the median crate got 0.0% of its downloads within 2 days of a release.
18 crates

| Compare | ||||||
|---|---|---|---|---|---|---|
| randFoundational | 5,938,557 | 33,204 | 34d | +3% | 2B | |
| rand_coreWidely used | 5,860,713 | 2,597 | 52d | +4% | 2B | |
| itertoolsWidely used | 4,545,996 | 8,656 | 4mo | +1% | 1.7B | |
| rand_chachaWidely used | 4,016,327 | 1,903 | 9mo | +0% | 1.6B | |
| foldhashEstablished | 3,043,165 | 333 | 14mo | +7% | 718M | |
| fastrandWidely used | 2,895,139 | 1,809 | 3mo | -3% | 1B | |
| num-traitsWidely used | 2,894,023 | 7,561 | 2.5y | +3% | 1.1B | |
| crossbeam-utilsEstablished | 2,696,777 | 605 | 49d | +2% | 1B | |
| crc32fastWidely used | 2,229,287 | 1,440 | 4d | +8% | 791M | |
| num-integerEstablished | 2,011,508 | 701 | 2mo | +10% | 778M | |
| adler2Pulled in | 1,994,630 | 18 | 17mo | +1% | 61M | |
| ahashWidely used | 1,968,676 | 2,097 | 18mo | -5% | 854M | |
| siphasherEstablished | 1,957,258 | 274 | 29d | +8% | 636M | |
| simd-adler32Pulled in | 1,931,920 | 26 | 3mo | +2% | 474M | |
| crossbeam-dequeEstablished | 1,924,167 | 142 | 49d | +1% | 714M | |
| num-bigintWidely used | 1,899,489 | 2,449 | 4mo | +13% | 679M | |
| matchitEstablished | 1,597,322 | 207 | 7mo | -1% | 513M | |
| crossbeam-channelWidely used | 1,564,625 | 2,767 | 49d | -2% | 66M |
Click a column to sort; press + to add a crate to a comparison. Real / day = median downloads on days with no release that day or the day before. Each crate's page shows its verdict and the 4 rules behind it. Why this method · this category on crates.io