JSON Schema to Schema | Schema Benchmarks

Some libraries can convert a JSON Schema back into a library schema at runtime, which is useful when you have an existing JSON Schema and want to validate against it using a typed library.

We benchmark each library against the same input:

Copy to clipboardCopy to clipboard
const jsonSchema = {
  type: "object",
  properties: { id: { type: "number" }, name: { type: "string" }, price: { type: "string" } },
  required: ["id", "name", "price"],
};

const schema = z.fromJSONSchema(jsonSchema);

Library	Version	/wk	Mean
`sury`	`11.0.0-rc.0`	323.06K	5 μs
`arktype`	`2.2.3`	1.4M	172 μs	33.62x
`zod`	`4.4.3`	253.96M	79 μs	15.39x

Code snippet

Code snippet

Code snippet

Preferences

Style

Theme

NPM browser

Code ligatures

Code snippetCode snippet

Code snippetCode snippet

Code snippetCode snippet

Code snippet

Code snippet

Code snippet