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rescript-schema
Advanced tools
🧬 The fastest parser in the entire JavaScript ecosystem with a focus on small bundle size and top-notch DX
The fastest parser in the entire JavaScript ecosystem with a focus on small bundle size and top-notch DX.
⚠️ Be aware that rescript-schema uses
eval
for parsing. It's usually fine but might not work in some environments like Cloudflare Workers or third-party scripts used on pages with the script-src header.
Highlights:
Also, you can use rescript-schema as a building block for your tools. And there are many existing ones:
Instead of relying on a few large functions with many methods, rescript-schema follows Valibot's approach, where API design and source code is based on many small and independent functions, each with just a single task. This modular design has several advantages.
For example, this allows a bundler to use the import statements to remove code that is not needed. This way, only the code that is actually used gets into your production build. This can reduce the bundle size by up to 2 times compared to Zod.
Besides the individual bundle size, the overall size of the library is also significantly smaller.
At the same time rescript-schema is the fastest composable validation library in the entire JavaScript ecosystem. This is achieved because of the JIT approach when an ultra optimized validator is created using eval
.
rescript-schema@9.1.0 | Zod@3.24.1 | Valibot@0.42.1 | ArkType@2.0.4 | |
---|---|---|---|---|
Total size (minified + gzipped) | 11 kB | 14.8 kB | 10.5 kB | 40.8 kB |
Example size (minified + gzipped) | 4.45 kB | 13.5 kB | 1.22 kB | 40.7 kB |
Parse with the same schema | 93,491 ops/ms | 1,191 ops/ms | 3,540 ops/ms | 84,772 ops/ms |
Create schema & parse once | 166 ops/ms | 93 ops/ms | 2,302 ops/ms | 13 ops/ms |
Eval-free | ❌ | ✅ | ✅ | ❓ |
Codegen-free (Doesn't need compiler) | ✅ | ✅ | ✅ | ✅ |
Ecosystem | ⭐️⭐️ | ⭐️⭐️⭐️⭐️⭐️ | ⭐️⭐️⭐️ | ⭐️⭐️ |
FAQs
🧬 The fastest parser in the entire JavaScript ecosystem with a focus on small bundle size and top-notch DX
The npm package rescript-schema receives a total of 944 weekly downloads. As such, rescript-schema popularity was classified as not popular.
We found that rescript-schema demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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