Crates / predicates / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to predicates
Short answerThe closest alternatives to predicates on crates.io data are zerovec-derive (2.6M real downloads a day), zerovec (2.5M real downloads a day), bitvec (807K real downloads a day). Of the 8 we list, the most used is hashbrown, and 7 shipped a release in the last year. predicates itself gets 554,957 a day with 4,376 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs predicates | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| zerovec-derive Pulled in | 2,561,390 | 4.62x | 6 | 2d | category Data structures, category Rust patterns | compare |
| zerovec Pulled in | 2,516,803 | 4.54x | 60 | 2d | category Data structures, category Rust patterns | compare |
| bitvec Established | 807,032 | 1.45x | 916 | 4mo | category Data structures, category Rust patterns | compare |
| matchit Established | 1,597,322 | 2.88x | 207 | 7mo | keyword "match" | compare |
| matchers Pulled in | 1,581,741 | 2.85x | 3 | 2.3y | keyword "match" | compare |
| hashbrown Widely used | 8,927,960 | 16.09x | 2,468 | 6mo | category Data structures | compare |
| thiserror Foundational | 5,048,791 | 9.10x | 75,923 | 31d | category Rust patterns | compare |
| indexmap Widely used | 4,883,122 | 8.80x | 6,422 | 49d | 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 predicates; 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 predicates: 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 predicates, 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: Few direct dependents and steady. 2,561,390 real downloads a day.zerovec-deriveRust crate. Custom derive for the zerovec crate. Real use: 2.6M downloads a day on quiet days; 6 crates depend on it.Read it next →Also worth your time