Chai plugin for JSON Schema v4
Lint an npm or yarn lockfile to analyze and detect issues
A family of specs for interoperable TypeScript
ArkType validator middleware
Amazon States Language validator
The fastest JS validator library for NodeJS
A standalone validator for inbound SNS HTTP messages. No dependency on the AWS SDK for JavaScript.
Converts Zod schemas to Json Schemas
AdiaUI A2UI validator — JSON Schema structural validation plus catalog-aware semantic validation (component exists, props match YAML). Split out from the compose engine so non-compose tooling (tests, MCP validator tools, CI gates) can depend on validation
CLI for Ajv JSON Schema Validator with human-friendly error messages
The official runtime utils for Standard Schema
A chai plugin for validate json schema.
 [](https://coveralls.io/github/ja
An object shape validation utility.
JSON Schema validation with first-class TypeScript and zero runtime cost. AOT compile to per-schema ESM modules with zero validator dependency. Generic Validator<T> for TypeBox/Zod/Valibot composition. Optional runtime API. Standard Schema V1 compatible.
 [](https://jsr.io/@t3-oss/env-core) [](https://jsr.io/@t3-oss/env-core) [![Socket Bad
A collection of useful code to complement the official convex package.
A json validator that has an option to check for duplicated keys
OpenAPI typescript support.
Merge and validate your config depending of your schema, forked from node-convict.
High-level API for Single Sign On (SAML 2.0)
Validates cron expressions
Object schema validation
A set of utils for faster development of GraphQL tools