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ajv

Another JSON Schema Validator

esp
published version 8.17.1, a year ago13772 dependents licensed under $MIT
628,332,616

zod

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

colinhacks
published version 3.25.67, a day ago30491 dependents licensed under $MIT
132,906,492

json-schema

JSON Schema validation and specifications

kriszyp
published version 0.4.0, 4 years ago1565 dependents licensed under $(AFL-2.1 OR BSD-3-Clause)
104,787,144

@eslint/object-schema

An object schema merger/validator

eslintbot
published version 2.1.6, 5 months ago52 dependents licensed under $Apache-2.0
71,057,283

har-schema

JSON Schema for HTTP Archive (HAR)

ahmadnassri
published version 2.0.0, 8 years ago465 dependents licensed under $ISC
63,969,606

joi

Object schema validation

marsup
published version 17.13.3, a year ago13104 dependents licensed under $BSD-3-Clause
51,181,193

zod-to-json-schema

Converts Zod schemas to Json Schemas

stefan-terdell
published version 3.24.5, 3 months ago1660 dependents licensed under $ISC
28,936,726

@apidevtools/json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers

philsturgeon
published version 14.0.1, a day ago448 dependents licensed under $MIT
22,528,480

@apideck/better-ajv-errors

Human-friendly JSON Schema validation for APIs

eliasmeire
published version 0.3.6, 3 years ago25 dependents licensed under $MIT
15,964,415

jsonschema

A fast and easy to use JSON Schema validator

tdegrunt
published version 1.5.0, 5 months ago2638 dependents licensed under $MIT
16,346,499

superstruct

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

artmllr
published version 2.0.2, a year ago743 dependents licensed under $MIT
11,138,406

@bufbuild/protobuf

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

tstamm-buf
published version 2.5.2, 12 days ago611 dependents licensed under $(Apache-2.0 AND BSD-3-Clause)
13,458,982

fast-json-stringify

Stringify your JSON at max speed

fdawgs
published version 6.0.1, 5 months ago184 dependents licensed under $MIT
12,090,706

@fastify/ajv-compiler

Build and manage the AJV instances for the fastify framework

fdawgs
published version 4.0.2, 5 months ago8 dependents licensed under $MIT
9,793,461

@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
9,669,180

mongoose

Mongoose MongoDB ODM

vkarpov15
published version 8.16.0, a day ago20132 dependents licensed under $MIT
13,191,579

fastify

Fast and low overhead web framework, for Node.js

matteo.collina
published version 5.4.0, 6 days ago2897 dependents licensed under $MIT
10,664,721

@standard-schema/utils

The official runtime utils for Standard Schema

fabian-hiller
published version 0.3.0, 7 months ago12 dependents licensed under $MIT
9,711,101

@exodus/schemasafe

JSON Safe Parser & Schema Validator

chalker
published version 1.3.0, 2 years ago26 dependents licensed under $MIT
9,495,627

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
9,258,280