Crates / Category
Rust crates · category · data Oct 24, 2026
WebAssembly crates by real downloads
crates.io describes this category as: “Crates for use when targeting WebAssembly, or for manipulating WebAssembly.” Below are the 5 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, uuid leads WebAssembly with 2,553,829 real downloads a day (foundational and steady). 4 of the 5 have 1,000+ dependents; 0 have shipped nothing in 2+ years. The median crate here got 5% of its Jul 27, 2026 to Oct 23, 2026 downloads within 2 days of a release.
5 crates

| Compare | ||||||
|---|---|---|---|---|---|---|
| uuidFoundational | 2,553,829 | 22,614 | 1d | -1% | 913M | |
| reqwestFoundational | 2,544,741 | 31,677 | 46d | +3% | 833M | |
| wasiPulled in | 2,177,567 | 58 | 13mo | -9% | 843M | |
| wasm-bindgenWidely used | 1,760,430 | 5,777 | 29d | -3% | 606M | |
| js-sysWidely used | 1,626,231 | 3,511 | 29d | -2% | 564M |
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