Crates / Category
Rust crates · category · data Oct 24, 2026
Science crates by real downloads
crates.io describes this category as: “Crates related to solving problems involving physics, chemistry, biology, geoscience, and other scientific fields.” Below are the 16 crates in it among the 1000 most-downloaded crates, ranked by real downloads (quiet-day baseline) instead of raw count.
Short answerBy steady daily use, num-traits leads Science with 2,894,023 real downloads a day (widely used and quiet for years). 9 of the 16 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.
16 crates
| Compare | ||||||
|---|---|---|---|---|---|---|
| num-traitsWidely used | 2,894,023 | 7,561 | 2.5y | +1% | 1.1B | |
| num-integerEstablished | 2,011,508 | 701 | 2mo | +8% | 778M | |
| num-bigintWidely used | 1,899,489 | 2,449 | 4mo | +12% | 679M | |
| ordered-floatWidely used | 1,379,318 | 1,143 | 2mo | -1% | 505M | |
| num-complexWidely used | 1,201,013 | 1,140 | 21mo | +10% | 432M | |
| num-iterPulled in | 1,144,112 | 32 | 4mo | +5% | 425M | |
| num-rationalEstablished | 1,035,328 | 456 | 21mo | +10% | 432M | |
| numWidely used | 811,973 | 2,024 | 21mo | +11% | 319M | |
| num-bigint-digPulled in | 672,015 | 97 | 11mo | -3% | 229M | |
| num-deriveWidely used | 667,655 | 1,317 | 3mo | +5% | 264M | |
| rust_decimalWidely used | 463,122 | 2,295 | 52d | -10% | 164M | |
| matrixmultiplyPulled in | 407,428 | 88 | 3mo | -7% | 158M | |
| bigdecimalEstablished | 365,613 | 588 | 26d | -4% | 134M | |
| ndarrayWidely used | 354,525 | 2,985 | 9mo | +1% | 137M | |
| smawkPulled in | 273,437 | 3 | 4mo | +10% | 106M | |
| nalgebraWidely used | 206,314 | 2,134 | 5mo | -14% | 97.4M |
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
Other categories
Up next
Next category: 16 crates. By real downloads, cfg_aliases leads with 2,163,249 a day.Development tools cratesRead it next →Also worth your time