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ajv

Another JSON Schema Validator

esp
published version 8.17.1, 10 months ago13567 dependents licensed under $MIT
529,943,381

zod

TypeScript-first schema declaration and validation library with static type inference

colinhacks
published version 3.24.4, 2 days ago27171 dependents licensed under $MIT
106,183,019

json-schema

JSON Schema validation and specifications

kriszyp
published version 0.4.0, 3 years ago1529 dependents licensed under $(AFL-2.1 OR BSD-3-Clause)
88,744,655

@eslint/object-schema

An object schema merger/validator

eslintbot
published version 2.1.6, 3 months ago44 dependents licensed under $Apache-2.0
58,103,482

har-schema

JSON Schema for HTTP Archive (HAR)

ahmadnassri
published version 2.0.0, 8 years ago459 dependents licensed under $ISC
54,551,658

joi

Object schema validation

marsup
published version 17.13.3, a year ago12994 dependents licensed under $BSD-3-Clause
44,958,328

@apidevtools/json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers

philsturgeon
published version 12.0.1, 25 days ago425 dependents licensed under $MIT
20,211,001

zod-to-json-schema

Converts Zod schemas to Json Schemas

stefan-terdell
published version 3.24.5, 2 months ago1378 dependents licensed under $ISC
16,870,751

jsonschema

A fast and easy to use JSON Schema validator

tdegrunt
published version 1.5.0, 4 months ago2626 dependents licensed under $MIT
14,273,898

@apideck/better-ajv-errors

Human-friendly JSON Schema validation for APIs

eliasmeire
published version 0.3.6, 3 years ago24 dependents licensed under $MIT
13,316,272

mongoose

Mongoose MongoDB ODM

vkarpov15
published version 8.14.1, 7 days ago19952 dependents licensed under $MIT
12,296,038

fast-json-stringify

Stringify your JSON at max speed

fdawgs
published version 6.0.1, 4 months ago180 dependents licensed under $MIT
10,852,837

superstruct

A simple and composable way to validate data in JavaScript (and TypeScript).

artmllr
published version 2.0.2, 10 months ago743 dependents licensed under $MIT
9,647,121

@bufbuild/protobuf

A complete implementation of Protocol Buffers in TypeScript, suitable for web browsers and Node.js.

tstamm-buf
published version 2.3.0, 17 hours ago570 dependents licensed under $(Apache-2.0 AND BSD-3-Clause)
10,211,885

@fastify/ajv-compiler

Build and manage the AJV instances for the fastify framework

fdawgs
published version 4.0.2, 4 months ago8 dependents licensed under $MIT
8,713,802

fastify

Fast and low overhead web framework, for Node.js

matteo.collina
published version 5.3.2, 18 days ago2819 dependents licensed under $MIT
9,423,738

@apidevtools/openapi-schemas

JSON Schemas for every version of the OpenAPI Specification

jamesmessinger
published version 2.1.0, 4 years ago7 dependents licensed under $MIT
8,320,178

tv4

A public domain JSON Schema validator for JavaScript

geraintluff
published version 1.3.0, 8 years ago570 dependents
8,902,952

@exodus/schemasafe

JSON Safe Parser & Schema Validator

chalker
published version 1.3.0, 2 years ago26 dependents licensed under $MIT
8,337,658

@standard-schema/utils

The official runtime utils for Standard Schema

fabian-hiller
published version 0.3.0, 5 months ago10 dependents licensed under $MIT
8,271,007
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