Crates / jsonschema / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to jsonschema
Short answerThe closest alternatives to jsonschema on crates.io data are simdutf8 (965K real downloads a day), bytecheck (477K real downloads a day), bytecheck_derive (477K real downloads a day). Of the 8 we list, the most used is http, and 6 shipped a release in the last year. jsonschema itself gets 348,095 a day with 1,599 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs jsonschema | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| simdutf8 Established | 965,252 | 2.77x | 220 | 2.1y | keyword "validation" | compare |
| bytecheck Pulled in | 477,366 | 1.37x | 83 | 3mo | keyword "validation" | compare |
| bytecheck_derive Pulled in | 477,347 | 1.37x | 1 | 3mo | keyword "validation" | compare |
| http Widely used | 3,277,345 | 9.42x | 8,511 | 3mo | category Web programming | compare |
| http-body Widely used | 2,784,335 | 8.00x | 1,124 | 3mo | category Web programming | compare |
| url Foundational | 2,520,673 | 7.24x | 16,906 | 10mo | category Web programming | compare |
| h2 Established | 2,290,495 | 6.58x | 296 | 18d | category Web programming | compare |
| httparse Established | 2,183,298 | 6.27x | 609 | 20mo | category Web programming | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with jsonschema; 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 jsonschema: 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 jsonschema, 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. 965,252 real downloads a day.simdutf8Rust crate. SIMD-accelerated UTF-8 validation. Real use: 965K downloads a day on quiet days; 220 crates depend on it.Read it next →Also worth your time