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ajv

Another JSON Schema Validator

esp
published version 8.17.1, a year ago13310 dependents licensed under $MIT
719,218,248

zod

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

colinhacks
published version 4.0.5, 8 days ago33921 dependents licensed under $MIT
147,106,795

json-schema

JSON Schema validation and specifications

kriszyp
published version 0.4.0, 4 years ago1450 dependents licensed under $(AFL-2.1 OR BSD-3-Clause)
125,593,326

@eslint/object-schema

An object schema merger/validator

eslintbot
published version 2.1.6, 6 months ago54 dependents licensed under $Apache-2.0
80,039,768

har-schema

JSON Schema for HTTP Archive (HAR)

ahmadnassri
published version 2.0.0, 8 years ago370 dependents licensed under $ISC
77,460,503

joi

Object schema validation

marsup
published version 17.13.3, a year ago12776 dependents licensed under $BSD-3-Clause
56,569,566

zod-to-json-schema

Converts Zod schemas to Json Schemas

stefan-terdell
published version 3.24.6, 24 days ago1964 dependents licensed under $ISC
33,798,821

@apidevtools/json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers

philsturgeon
published version 14.1.1, 3 days ago463 dependents licensed under $MIT
26,242,003

@apideck/better-ajv-errors

Human-friendly JSON Schema validation for APIs

eliasmeire
published version 0.3.6, 3 years ago27 dependents licensed under $MIT
17,692,455

@bufbuild/protobuf

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

tstamm-buf
published version 2.6.1, 2 days ago648 dependents licensed under $(Apache-2.0 AND BSD-3-Clause)
17,318,738

jsonschema

A fast and easy to use JSON Schema validator

tdegrunt
published version 1.5.0, 6 months ago2508 dependents licensed under $MIT
18,437,430

@standard-schema/utils

The official runtime utils for Standard Schema

fabian-hiller
published version 0.3.0, 8 months ago16 dependents licensed under $MIT
14,660,602

superstruct

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

artmllr
published version 2.0.2, a year ago732 dependents licensed under $MIT
11,139,430

mongoose

Mongoose MongoDB ODM

vkarpov15
published version 8.16.4, 2 days ago19711 dependents licensed under $MIT
15,390,877

fast-json-stringify

Stringify your JSON at max speed

fdawgs
published version 6.0.1, 6 months ago184 dependents licensed under $MIT
13,352,020

@fastify/ajv-compiler

Build and manage the AJV instances for the fastify framework

fdawgs
published version 4.0.2, 7 months ago8 dependents licensed under $MIT
10,837,093

fastify

Fast and low overhead web framework, for Node.js

matteo.collina
published version 5.4.0, a month ago2836 dependents licensed under $MIT
11,787,399

@standard-schema/spec

A standard interface for TypeScript schema validation libraries

fabian-hiller
published version 1.0.0, 6 months ago183 dependents licensed under $MIT
11,396,779

@apidevtools/openapi-schemas

JSON Schemas for every version of the OpenAPI Specification

jamesmessinger
published version 2.1.0, 4 years ago8 dependents licensed under $MIT
10,051,749

protocol-buffers-schema

No nonsense protocol buffers schema parser written in Javascript

mafintosh
published version 3.6.0, 4 years ago65 dependents licensed under $MIT
10,477,897