Crates / Compare / thiserror vs eyre
Rust crates side by side · data Oct 24, 2026
thiserror vs eyre
Short answerBy steady daily use, thiserror is bigger: 5,048,791 real downloads a day against 286,395 for eyre (17.6x). 75,923 crates depend on thiserror and 1,678 on eyre. thiserror last shipped 31 days ago, eyre 2 months ago.
thiserror
FoundationalFoundational and steady.
75,923 crates depend on it; downloads don't spike on releases.
derive(Error)
eyre
Widely usedWidely used and steady.
1,678 crates depend on it; downloads don't spike on releases.
Flexible concrete Error Reporting type built on std::error::Error with customizable Reports
thiserroreyre · 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 | thiserror | eyre |
|---|---|---|
| Real downloads a day | 5,048,791 | 286,395 |
| Crates that depend on it | 75,923 | 1,678 |
| Last release | 2.0.21, 31 days ago | 0.6.14, 2 months ago |
| Trend vs the field | +1% | -7% |
| Release-window share | 3.8% | 2.3% |
| Downloads in the window | 456,070,996 | 24,380,585 |
| All-time downloads | 1,690,852,060 | 125,705,154 |
| Versions published | 92 | 34 |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| MSRV | 1.77 | 1.65.0 |
| First published | Oct 9, 2019 | Feb 5, 2020 |
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 (thiserror, 75,923 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: thiserror 31 days ago, eyre 2 months 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.
Up next
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