Rust crate owner · data Oct 24, 2026
fitzgen: Rust crates and real downloads
Every crate fitzgen can publish on crates.io, among the top 1000. fitzgen on GitHub · on crates.io
Short answerNick Fitzgerald (crates.io fitzgen) owns 9 of the 1000 most-downloaded Rust crates. Together they get about 8,441,953 real downloads a day on quiet days (release-day spikes removed), rank #41 of the 492 owners we track. The biggest is bumpalo at 1,968,716 a day with 546 crates depending on it. 3 shipped a release in the last 90 days; 0 are gaining on the field and 3 losing ground.
Their crates, by real downloads
| Crate | Real downloads a day | Dependents | Trend vs field | Last release | crates.io rank |
|---|---|---|---|---|---|
| bumpalo Established | 1,968,716 | 546 | -2% | 5mo | #201 |
| object Established | 1,461,914 | 512 | -9% | 3mo | #195 |
| target-lexicon Established | 1,275,273 | 245 | -8% | 8mo | #329 |
| gimli Established | 1,195,625 | 206 | -9% | 4mo | #227 |
| addr2line Pulled in | 1,078,074 | 80 | -13% | 3mo | #261 |
| id-arena Pulled in | 640,306 | 65 | -17% | 9mo | #703 |
| derive_arbitrary Pulled in | 369,897 | 9 | -12% | 18d | #788 |
| cpp_demangle Pulled in | 329,132 | 64 | -6% | 12mo | #863 |
| peeking_take_while Pulled in | 123,016 | 7 | +5% | 5.1y | #769 |
Mostly in: No standard library (4), Rust patterns (3), Debugging (3), Memory management (2), Profiling (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.
Up next
The next owner by real downloads: 11 top crates, about 8,413,866 real downloads a day.kornelskiRead it next →Also worth your time