Crates / Compare / tower vs tokio-rustls
Rust crates side by side · data Oct 24, 2026
tower vs tokio-rustls
Short answerBy steady daily use, tower is bigger: 2,342,590 real downloads a day against 2,299,591 for tokio-rustls (1.0x). 5,816 crates depend on tower and 2,458 on tokio-rustls. tower last shipped 9 months ago, tokio-rustls 26 days ago.
tower
Widely usedWidely used and steady.
5,816 crates depend on it; no release in the last 90 days, so its count is all steady use.
Tower is a library of modular and reusable components for building robust clients and servers.
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.
towertokio-rustls · 100% = that crate's normal quiet day, so a spike to 300% is triple its usual traffic
How they relate
- Often used together: 3 tracked crates depend on both (reqwest, tonic, aws-smithy-http-client). They are not always either/or.
Every number, side by side
| Same window, same method | tower | tokio-rustls |
|---|---|---|
| Real downloads a day | 2,342,590 | 2,299,591 |
| Crates that depend on it | 5,816 | 2,458 |
| Last release | 0.5.3, 9 months ago | 0.26.6, 26 days ago |
| Trend vs the field | -4% | +3% |
| Release-window share | 0.0% | 4.8% |
| Downloads in the window | 209,947,395 | 210,258,177 |
| All-time downloads | 766,196,518 | 871,391,107 |
| Versions published | 26 | 80 |
| License | MIT | MIT OR Apache-2.0 |
| MSRV | 1.64.0 | 1.71 |
| First published | Dec 23, 2016 | Feb 22, 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 (tower, 5,816 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: tower 9 months ago, tokio-rustls 26 days 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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