Crates / async-signal / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to async-signal
Short answerThe closest alternatives to async-signal on crates.io data are futures-lite (763K real downloads a day), blocking (466K real downloads a day), scc (241K real downloads a day). Of the 8 we list, the most used is mio, and 7 shipped a release in the last year. async-signal itself gets 369,929 a day with 21 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs async-signal | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| futures-lite Widely used | 763,457 | 2.06x | 1,109 | 15mo | category Asynchronous, category Concurrency, keyword "async" | compare |
| blocking Established | 466,293 | 1.26x | 179 | 2mo | category Asynchronous, category Concurrency, keyword "async" | compare |
| scc Established | 240,754 | 0.65x | 133 | 53d | category Asynchronous, category Concurrency, keyword "async" | compare |
| mio Established | 3,332,252 | 9.01x | 624 | 21d | category Asynchronous, keyword "async" | compare |
| tokio Foundational | 3,098,313 | 8.38x | 78,796 | 3d | category Asynchronous, keyword "async" | compare |
| tracing Foundational | 2,611,879 | 7.06x | 46,220 | 10mo | category Asynchronous, keyword "async" | compare |
| futures Foundational | 2,405,900 | 6.50x | 26,505 | 2mo | category Asynchronous, keyword "async" | compare |
| tower Widely used | 2,342,590 | 6.33x | 5,816 | 9mo | category Asynchronous, keyword "async" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with async-signal; read its description before you swap.
- More dependents means more answered questions and a smaller chance it disappears.
- Check the last release against how fast you need fixes. For async-signal: is it still maintained?
Rules
Alternatives = tracked crates (top 1000 by downloads) that share a specific crates.io category (2 points each) or keyword (3 points each) with async-signal, most similar first; its own parts (same name prefix) and crates it depends on or that depend on it are left out, because those are companions, not substitutes. Real downloads = quiet-day median, crates.io data Oct 24, 2026. Built when we find 3 or more.
Up next
The closest alternative: Widely used and steady. 763,457 real downloads a day.futures-liteRust crate. Futures, streams, and async I/O combinators. Real use: 763K downloads a day on quiet days; 1,109 crates depend on it.Read it next →Also worth your time