Rust crate alternatives · data Oct 24, 2026
Alternatives to uuid
Short answerThe closest alternatives to uuid on crates.io data are const-oid (2.1M real downloads a day), der (1.5M real downloads a day), pkcs8 (1.2M real downloads a day). Of the 8 we list, the most used is hashbrown, and 8 shipped a release in the last year. uuid itself gets 2,553,829 a day with 22,614 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs uuid | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| const-oid Established | 2,079,241 | 0.81x | 160 | 10mo | category Data structures, category No standard library | compare |
| der Established | 1,514,408 | 0.59x | 378 | 49d | category Data structures, category No standard library | compare |
| pkcs8 Established | 1,245,962 | 0.49x | 361 | 6mo | category Data structures, category No standard library | compare |
| pem-rfc7468 Pulled in | 1,099,295 | 0.43x | 73 | 12mo | category Data structures, category No standard library | compare |
| sec1 Pulled in | 854,812 | 0.33x | 85 | 7mo | category Data structures, category No standard library | compare |
| pkcs1 Pulled in | 704,103 | 0.28x | 65 | 19d | category Data structures, category No standard library | compare |
| hashbrown Widely used | 8,927,960 | 3.50x | 2,468 | 6mo | category Data structures, category No standard library | compare |
| syn Foundational | 8,378,886 | 3.28x | 18,848 | 12d | category Parser implementations | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with uuid; 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 uuid: 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 uuid, 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: Established and gaining. 2,079,241 real downloads a day.const-oidRust crate. Const-friendly implementation of the ISO/IEC Object Identifier (OID) standard as defined in ITU X.660, with support for BER/DER encoding/decoding as well as...Read it next →Also worth your time