Rust crate owner · data Oct 24, 2026
bluss: Rust crates and real downloads
Every crate bluss can publish on crates.io, among the top 1000. bluss on GitHub · on crates.io
Short answerbluss (crates.io bluss) owns 11 of the 1000 most-downloaded Rust crates. Together they get about 21,380,000 real downloads a day on quiet days (release-day spikes removed), rank #19 of the 492 owners we track. The biggest is indexmap at 4,883,122 a day with 6,422 crates depending on it. 2 shipped a release in the last 90 days; 0 are gaining on the field and 0 losing ground.
Their crates, by real downloads
| Crate | Real downloads a day | Dependents | Trend vs field | Last release | crates.io rank |
|---|---|---|---|---|---|
| indexmap Widely used | 4,883,122 | 6,422 | -3% | 49d | #12 |
| itertools Widely used | 4,545,996 | 8,656 | +0% | 4mo | #13 |
| either Widely used | 3,049,603 | 1,488 | -3% | 18d | #57 |
| scopeguard Established | 2,724,718 | 567 | -3% | 3.3y | #68 |
| arrayvec Widely used | 1,733,744 | 1,215 | +2% | 4mo | #213 |
| petgraph Widely used | 1,525,364 | 1,570 | -7% | 13mo | #252 |
| fixedbitset Established | 1,507,079 | 199 | -8% | 2.5y | #259 |
| matrixmultiply Pulled in | 407,428 | 88 | -7% | 3mo | #700 |
| rawpointer Pulled in | 381,493 | 13 | -6% | 7.1y | #721 |
| ndarray Widely used | 354,525 | 2,985 | +1% | 9mo | #765 |
| maplit Established | 266,928 | 819 | +0% | 7.2y | #735 |
Mostly in: Data structures (6), No standard library (5), Rust patterns (3), Science (2), No dynamic allocation (1).
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How we count
Owners: crates.io owners API (users only; teams are not listed), fetched Oct 24, 2026. Real downloads a day = the median day with no release that day or the day before, per crate, summed. Trend = last 30 days against the first 30, read against the median tracked crate. Method: our crates.io study.
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