Crates / Compare / sha1 vs sha-1
Rust crates side by side · data Oct 24, 2026
sha1 vs sha-1
Short answerBy steady daily use, sha1 is bigger: 2,004,209 real downloads a day against 196,391 for sha-1 (10.2x). 2,496 crates depend on sha1 and 313 on sha-1. sha1 last shipped 3 months ago, sha-1 3.9 years ago.
sha1
Widely usedWidely used and steady.
2,496 crates depend on it; no release in the last 90 days, so its count is all steady use.
SHA-1 hash function
sha-1
EstablishedEstablished and quiet for years.
313 crates depend on it; no release in the last 90 days, so its count is all steady use.
SHA-1 hash function. This crate is deprecated! Use the sha1 crate instead.
sha1sha-1 · 100% = that crate's normal quiet day, so a spike to 300% is triple its usual traffic
Every number, side by side
| Same window, same method | sha1 | sha-1 |
|---|---|---|
| Real downloads a day | 2,004,209 | 196,391 |
| Crates that depend on it | 2,496 | 313 |
| Last release | 0.10.7, 3 months ago | 0.10.1, 3.9 years ago |
| Trend vs the field | +8% | -4% |
| Release-window share | 0.0% | 0.0% |
| Downloads in the window | 188,159,457 | 17,442,395 |
| All-time downloads | 612,772,812 | 166,513,738 |
| Versions published | 35 | 24 |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| MSRV | not set | not set |
| First published | Nov 21, 2014 | Apr 6, 2017 |
Which to pick
- Downloads tell you what is common, not what fits. Each crate's own description above says what it is for; when the jobs differ, pick by the job.
- When both fit, prefer the one more crates depend on (sha1, 2,496 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: sha1 3 months ago, sha-1 3.9 years ago.
Also in this space
Method
Real downloads = the median day with no release that day or the day before, from the crates.io API (Jul 27, 2026 to Oct 23, 2026). Raw crates.io counts include CI and bots and run high (why); the method is from our 90-day study.
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