JavaScript schema validation

Declare schemas and validate data against them at runtime.

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JavaScript schema validation
Outil	Étoiles	Licence	Conditions	Auto-hébergeable	Langage	Dernière release	Dernier push
Zod	44k	MIT	Open source	Non	TypeScript	v4.6.5	2026-10-02
Yup	24k	MIT	Open source	Non	TypeScript	v1.0.0	2026-10-05
Joi	21k	Other	Open source	Non	JavaScript	v18.2.9	2026-09-11
Ajv	15k	MIT	Open source	Non	TypeScript	v8.20.0	2026-09-06
class-validator	12k	MIT	Open source	Non	TypeScript	v0.15.1	2026-03-25
Valibot	9k	MIT	Open source	Non	TypeScript	v1.5.0	2026-10-06
ArkType	7.9k	MIT	Open source	Non	TypeScript	@arktype/util@0.56.6	2026-10-06

7 outils

TypeScript-first schema validation with static type inference

Langage: TypeScript
Licence: MIT
Étoiles: 44k
Dernière release: v4.6.5
Dernier push: 2026-10-02

Dead simple Object schema validation

Langage: TypeScript
Licence: MIT
Étoiles: 24k
Dernière release: v1.0.0
Dernier push: 2026-10-05

The most powerful data validation library for JS

Langage: JavaScript
Licence: Other
Étoiles: 21k
Dernière release: v18.2.9
Dernier push: 2026-09-11

The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

Langage: TypeScript
Licence: MIT
Étoiles: 15k
Dernière release: v8.20.0
Dernier push: 2026-09-06

class-validator

Decorator-based property validation for classes.

Langage: TypeScript
Licence: MIT
Étoiles: 12k
Dernière release: v0.15.1
Dernier push: 2026-03-25

The modular and type safe schema library for validating structural data 🤖

Langage: TypeScript
Licence: MIT
Étoiles: 9k
Dernière release: v1.5.0
Dernier push: 2026-10-06

TypeScript's 1:1 validator, optimized from editor to runtime

Langage: TypeScript
Licence: MIT
Étoiles: 7.9k
Dernière release: @arktype/util@0.56.6
Dernier push: 2026-10-06

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