Crates / crc32c / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to crc32c
Short answerThe closest alternatives to crc32c on crates.io data are crc32fast (2.2M real downloads a day), simd-adler32 (1.9M real downloads a day), simdutf8 (965K real downloads a day). Of the 8 we list, the most used is ppv-lite86, and 4 shipped a release in the last year. crc32c itself gets 209,580 a day with 345 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs crc32c | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| crc32fast Widely used | 2,229,287 | 10.64x | 1,440 | 4d | category Algorithms, keyword "crc", keyword "simd" | side by side |
| simd-adler32 Pulled in | 1,931,920 | 9.22x | 26 | 3mo | category Algorithms, keyword "simd" | compare |
| simdutf8 Established | 965,252 | 4.61x | 220 | 2.1y | category Algorithms, keyword "simd" | compare |
| crc Established | 930,857 | 4.44x | 601 | 11mo | category Algorithms, keyword "crc" | compare |
| ppv-lite86 Pulled in | 2,441,634 | 11.65x | 6 | 20mo | keyword "simd" | compare |
| crc-catalog Pulled in | 916,089 | 4.37x | 4 | 6mo | keyword "crc" | compare |
| vsimd Pulled in | 703,862 | 3.36x | 3 | 3.8y | keyword "simd" | compare |
| base64-simd Established | 600,975 | 2.87x | 116 | 3.8y | keyword "simd" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with crc32c; 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 crc32c: 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 crc32c, 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. 2,229,287 real downloads a day.crc32fastRust crate. Fast, SIMD-accelerated CRC32 (IEEE) checksum computation. Real use: 2.2M downloads a day on quiet days; 1,440 crates depend on it.Read it next →Also worth your time