Crates / schemars_derive / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to schemars_derive
Short answerThe closest alternatives to schemars_derive on crates.io data are serde (4.3M real downloads a day), serde_json (4.3M real downloads a day), serde_core (3.8M real downloads a day). Of the 8 we list, the most used is serde, and 6 shipped a release in the last year. schemars_derive itself gets 952,344 a day with 6 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs schemars_derive | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| serde Foundational | 4,327,945 | 4.54x | 133,588 | 3mo | category Encoding, category No standard library, keyword "serde" | compare |
| serde_json Foundational | 4,294,696 | 4.51x | 113,141 | 13d | category Encoding, category No standard library, keyword "serde" | compare |
| serde_core Established | 3,794,333 | 3.98x | 229 | 3mo | category Encoding, category No standard library, keyword "serde" | compare |
| serde_spanned Pulled in | 2,255,941 | 2.37x | 16 | 16d | category Encoding, keyword "serde" | compare |
| serde_urlencoded Widely used | 1,715,895 | 1.80x | 1,342 | 4.8y | category Encoding, keyword "serde" | compare |
| quick-xml Widely used | 1,525,182 | 1.60x | 2,687 | 2mo | category Encoding, keyword "serde" | compare |
| serde_yaml Widely used | 1,238,004 | 1.30x | 7,766 | 2.6y | category Encoding, keyword "serde" | compare |
| serde_with Widely used | 1,160,488 | 1.22x | 3,105 | 28d | category Encoding, category No standard library, keyword "serde" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with schemars_derive; 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 schemars_derive: 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 schemars_derive, 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. 4,327,945 real downloads a day.serdeRust crate. A generic serialization/deserialization framework. Real use: 4.3M downloads a day on quiet days; 133,588 crates depend on it.Read it next →Also worth your time