Rust crate owner · data Oct 24, 2026
chifflier: Rust crates and real downloads
Every crate chifflier can publish on crates.io, among the top 1000. chifflier on GitHub · on crates.io
Short answerPierre Chifflier (crates.io chifflier) owns 7 of the 1000 most-downloaded Rust crates. Together they get about 3,997,066 real downloads a day on quiet days (release-day spikes removed), rank #74 of the 492 owners we track. The biggest is x509-parser at 611,159 a day with 803 crates depending on it. 0 shipped a release in the last 90 days; 5 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 |
|---|---|---|---|---|---|
| x509-parser Established | 611,159 | 803 | +16% | 9mo | #589 |
| asn1-rs Pulled in | 601,623 | 29 | +12% | 5mo | #610 |
| asn1-rs-derive Pulled in | 595,269 | 1 | +13% | 18mo | #616 |
| der-parser Pulled in | 588,282 | 43 | +14% | 21mo | #601 |
| oid-registry Pulled in | 579,628 | 23 | +14% | 18mo | #618 |
| asn1-rs-impl Pulled in | 518,805 | 1 | +8% | 18mo | #681 |
| rusticata-macros Pulled in | 502,300 | 13 | +9% | 19mo | #683 |
Mostly in: Parser implementations (3), Cryptography (1), Parsing tools (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: 1 top crates, about 3,901,922 real downloads a day.withoutboatsRead it next →Also worth your time