Rust crate alternatives · data Oct 24, 2026
Alternatives to crc
Short answerThe closest alternatives to crc on crates.io data are crc32fast (2.2M real downloads a day), foldhash (3M real downloads a day), adler2 (2M real downloads a day). Of the 8 we list, the most used is foldhash, and 5 shipped a release in the last year. crc itself gets 930,857 a day with 601 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs crc | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| crc32fast Widely used | 2,229,287 | 2.39x | 1,440 | 4d | category Algorithms, category No standard library, keyword "crc", keyword "crc32" | side by side |
| foldhash Established | 3,043,165 | 3.27x | 333 | 14mo | category Algorithms, category No standard library, keyword "hash" | compare |
| adler2 Pulled in | 1,994,630 | 2.14x | 18 | 17mo | category Algorithms, keyword "hash" | compare |
| ahash Widely used | 1,968,676 | 2.11x | 2,097 | 18mo | category Algorithms, category No standard library, keyword "hash" | compare |
| siphasher Established | 1,957,258 | 2.10x | 274 | 29d | category Algorithms, keyword "hash" | compare |
| twox-hash Established | 763,473 | 0.82x | 394 | 20d | category Algorithms, keyword "hash" | compare |
| md5 Widely used | 483,598 | 0.52x | 1,213 | 4mo | category Algorithms, keyword "hash" | compare |
| xxhash-rust Widely used | 425,794 | 0.46x | 1,000 | 26d | category Algorithms, keyword "hash" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with crc; 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 crc: 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 crc, 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