Best Open Source validation Libraries

A curated list of the most popular GitHub repositories tagged with validation. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1react-hook-form/react-hook-form

📋 React Hooks for form state management and validation (Web + React Native)

44,545TypeScript

Analyze Code

#2pydantic/pydantic

Data validation using Python type hints

26,955Python

Analyze Code

#3validatorjs/validator.js

String validation

23,755JavaScript

Analyze Code

#4hapijs/joi

The most powerful data validation library for JS

21,200JavaScript

Analyze Code

#5go-playground/validator

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving

19,724Go

Analyze Code

#6redux-form/redux-form

A Higher Order Component using react-redux to keep form state in a Redux store

12,521JavaScript

Analyze Code

#7567-labs/instructor

structured outputs for llms

12,410Python

Analyze Code

#8cakephp/cakephp

CakePHP: The Rapid Development Framework for PHP - Official Repository

8,789PHP

Analyze Code

#9vuelidate/vuelidate

Simple, lightweight model-based validation for Vue.js

6,900JavaScript

Analyze Code

#10gcanti/io-ts

Runtime type system for IO decoding/encoding

6,822TypeScript

Analyze Code