Crates / Compare / tokio-rustls vs rustls-pemfile
Rust crates side by side · data Oct 24, 2026
tokio-rustls vs rustls-pemfile
Short answerBy steady daily use, tokio-rustls is bigger: 2,299,591 real downloads a day against 945,078 for rustls-pemfile (2.4x). 2,458 crates depend on tokio-rustls and 1,378 on rustls-pemfile. tokio-rustls last shipped 26 days ago, rustls-pemfile 2.1 years ago.
tokio-rustls
Widely usedWidely used and steady.
2,458 crates depend on it; small bumps on release days (1.17x the baseline).
Asynchronous TLS/SSL streams for Tokio using Rustls.
rustls-pemfile
Widely usedWidely used and losing ground.
1,378 crates depend on it; no release in the last 90 days, so its count is all steady use.
Basic .pem file parser for keys and certificates
tokio-rustlsrustls-pemfile · 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 | tokio-rustls | rustls-pemfile |
|---|---|---|
| Real downloads a day | 2,299,591 | 945,078 |
| Crates that depend on it | 2,458 | 1,378 |
| Last release | 0.26.6, 26 days ago | 2.2.0, 2.1 years ago |
| Trend vs the field | +3% | -12% |
| Release-window share | 4.8% | 0.0% |
| Downloads in the window | 210,258,177 | 78,565,121 |
| All-time downloads | 871,391,107 | 569,272,652 |
| Versions published | 80 | 18 |
| License | MIT OR Apache-2.0 | Apache-2.0 OR ISC OR MIT |
| MSRV | 1.71 | not set |
| First published | Feb 22, 2017 | Dec 28, 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 (tokio-rustls, 2,458 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: tokio-rustls 26 days ago, rustls-pemfile 2.1 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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