Crates / seahash / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to seahash
Short answerThe closest alternatives to seahash on crates.io data are adler2 (2M real downloads a day), md5 (484K real downloads a day), adler (187K real downloads a day). Of the 8 we list, the most used is hashbrown, and 5 shipped a release in the last year. seahash itself gets 438,807 a day with 202 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs seahash | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| adler2 Pulled in | 1,994,630 | 4.55x | 18 | 17mo | keyword "checksum", keyword "hash" | compare |
| md5 Widely used | 483,598 | 1.10x | 1,213 | 4mo | keyword "checksum", keyword "hash" | compare |
| adler Pulled in | 186,534 | 0.43x | 17 | 5.7y | keyword "checksum", keyword "hash" | compare |
| hashbrown Widely used | 8,927,960 | 20.35x | 2,468 | 6mo | keyword "hash" | compare |
| digest Widely used | 3,862,411 | 8.80x | 1,197 | 6mo | keyword "hash" | compare |
| sha2 Foundational | 3,510,276 | 8.00x | 22,608 | 12d | keyword "hash" | compare |
| foldhash Established | 3,043,165 | 6.94x | 333 | 14mo | keyword "hash" | compare |
| rustc-hash Widely used | 2,998,135 | 6.83x | 3,505 | 4mo | 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 seahash; 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 seahash: 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 seahash, 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. 1,994,630 real downloads a day.adler2Rust crate. A simple clean-room implementation of the Adler-32 checksum. Real use: 2M downloads a day on quiet days; 18 crates depend on it.Read it next →Also worth your time