Rust crate alternatives · data Oct 27, 2026
Alternatives to rstar
Short answerThe closest alternatives to rstar on crates.io data are crossbeam-utils (2.7M real downloads a day), ahash (2M real downloads a day), crossbeam-deque (1.9M real downloads a day). Of the 8 we list, the most used is crossbeam-utils, and 5 shipped a release in the last year. rstar itself gets 170,798 a day with 186 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs rstar | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| crossbeam-utils Established | 2,696,777 | 15.79x | 605 | 49d | category Algorithms, category Data structures | compare |
| ahash Widely used | 1,968,676 | 11.53x | 2,097 | 18mo | category Algorithms, category Data structures | compare |
| crossbeam-deque Established | 1,924,167 | 11.27x | 142 | 49d | category Algorithms, category Data structures | compare |
| num-bigint Widely used | 1,899,489 | 11.12x | 2,449 | 4mo | category Algorithms, category Data structures | compare |
| crossbeam-channel Widely used | 1,564,625 | 9.16x | 2,767 | 49d | category Algorithms, category Data structures | compare |
| num-complex Widely used | 1,201,013 | 7.03x | 1,140 | 21mo | category Algorithms, category Data structures | compare |
| dashmap Widely used | 1,112,131 | 6.51x | 4,694 | 5mo | category Algorithms, category Data structures | compare |
| num-rational Established | 1,035,328 | 6.06x | 456 | 21mo | category Algorithms, category Data structures | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with rstar; 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 rstar: 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 rstar, 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 27, 2026. Built when we find 3 or more.
Up next
The closest alternative: Established and steady. 2,696,777 real downloads a day.crossbeam-utilsRust crate. Utilities for concurrent programming. Real use: 2.7M downloads a day on quiet days; 605 crates depend on it.Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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