Crates / x509-parser / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to x509-parser
Short answerThe closest alternatives to x509-parser on crates.io data are url (2.5M real downloads a day), httparse (2.2M real downloads a day), quick-xml (1.5M real downloads a day). Of the 8 we list, the most used is url, and 3 shipped a release in the last year. x509-parser itself gets 611,159 a day with 803 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs x509-parser | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| url Foundational | 2,520,673 | 4.12x | 16,906 | 10mo | category Parser implementations, keyword "parser" | side by side |
| httparse Established | 2,183,298 | 3.57x | 609 | 20mo | category Parser implementations, keyword "parser" | compare |
| quick-xml Widely used | 1,525,182 | 2.50x | 2,687 | 2mo | category Parser implementations, keyword "parser" | compare |
| spki Established | 1,302,398 | 2.13x | 198 | 19d | category Cryptography, keyword "x509" | compare |
| csv-core Pulled in | 687,418 | 1.12x | 32 | 12mo | category Parser implementations, keyword "parser" | compare |
| csv Widely used | 677,936 | 1.11x | 3,501 | 12mo | category Parser implementations, keyword "parser" | compare |
| anes Pulled in | 667,197 | 1.09x | 4 | 16mo | category Parser implementations, keyword "parser" | compare |
| xmlparser Pulled in | 514,297 | 0.84x | 49 | 3.1y | category Parser implementations, keyword "parser" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with x509-parser; 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 x509-parser: 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 x509-parser, 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: Foundational and steady. 2,520,673 real downloads a day.urlRust crate. URL library for Rust, based on the WHATWG URL Standard. Real use: 2.5M downloads a day on quiet days; 16,906 crates depend on it.Read it next →Also worth your time