JavaScript/React Libraries

Collection of open-source C++ libraries from Google

Enterprise grid with all features included

Collection of essential utilities for Java development

Functional programming library for Kotlin

Object-to-object mapping library for .NET

Functional abstractions library for Scala

Image loading library for Android written in Kotlin

Modular date utility library for JavaScript

Lightweight Moment.js alternative with compatible API

Flexible authentication solution for Rails

Modern drag and drop toolkit for React

High-performance linear algebra library for C++

Fast and safe text formatting library for C++

Code generator for immutable data classes in Dart

Simple service locator for Dart and Flutter

Low-level utility library for C

Google's image loading and caching library for Android

Mathematics library for graphics based on GLSL

Google core libraries for Java with collections and utilities

SVG icons from the Tailwind CSS team

Image downloading and caching library for Swift

Pragmatic dependency injection framework for Kotlin

Library that reduces Java boilerplate with annotations

Feather Icons fork with more icons and better maintenance

Modern date library from the creator of Moment.js

Code generator for Java object mapping at compile time

Simple Mediator pattern implementation for .NET

Rich data visualization library built on D3

Open-source cryptography and SSL/TLS library

Resilience and fault-tolerance library for .NET

Framework-agnostic drag and drop library by Atlassian

Seamless bindings between C++ and Python

Library to load environment variables from .env files

Lightweight and customizable toasts with promises API

Toast notification system with many options

Ready-to-use virtualization components with advanced features

Declarative charting library built on D3 for React

Async image loading and caching library for iOS

DSL for Auto Layout in Swift

Minimalist and elegant toast library for React

Headless UI for powerful tables with sorting, filtering and pagination

Headless virtualization for massive lists and grids

Fast and extensible progress bars for Python

Dashboard components and charts for React with Tailwind

Complete configuration solution for Go applications

Collection of visualization primitives by Airbnb

Lossless data compression library

GraphQL toolkit for Elixir

Powerful toolkit for building REST APIs with Django

Minimalist and extensible web framework for Go

Express.js-inspired web framework for Go

GraphQL library for Python with Django/SQLAlchemy integrations

WSGI HTTP server for Python in production

Asynchronous framework for building web applications in Kotlin

Reactive and high-velocity web framework for Scala and Java

Socket.IO implementation for Python (client and server)

Framework for creating interactive web applications with R

Minimalist and flexible web framework for Ruby

Lightweight high-performance ASGI framework

Modern GraphQL library with dataclasses and type hints

Ultra-fast ASGI server based on uvloop

Server-side web framework for Swift

Rails ORM with Active Record pattern

Database migration tool for SQLAlchemy

Safe and extensible ORM for Rust

Mature and powerful ORM for PHP

Database toolkit and query DSL for Elixir

Modern and extensible ORM for .NET

Modern cross-platform ORM for .NET

ORM framework and SQL DSL for Kotlin by JetBrains

Fantastic full-featured ORM for Golang

Mature and powerful ORM for Java with JPA

Simplified data access for Spring with repositories

Powerful and flexible ORM and SQL toolkit for Python

Django-inspired async ORM for Python

Extremely fast Rust web framework

Content framework with islands architecture

Ergonomic web framework for Rust

CLI argument parser for Rust

Go framework for CLI applications

Python 'batteries included' web framework

Modern, fast Python framework with types

Simple and extensible Python microframework

React framework for fast static sites

High-performance Go web framework

Google framework for high-performance numerical computing

JavaScript testing framework with zero-config

High-level API for neural networks

Elegant and expressive PHP framework

Framework for RAG and data-augmented LLM apps

React framework for production with SSR and SSG

Elixir web framework for real-time applications

Standard testing framework for PHP

Cross-browser E2E framework by Microsoft

Deep learning framework preferred in research

Ruby framework that popularized web MVC

React framework focused on web standards

BDD framework for Ruby with expressive syntax

Most popular Java enterprise framework

Professional PHP framework for web applications

Utility-first CSS framework

Google's ML framework for production

Ultra-fast testing framework with native Vite support

Lightweight JavaScript framework for behavior in HTML

Most popular CSS framework for responsive design

Asynchronous HTTP client and server for asyncio

Elegant HTTP client for Swift

Powerful HTTP client for Dart with interceptors and FormData

High-performance gRPC implementation for Go

Extensible and powerful PHP HTTP client

Modern async HTTP client for Python

Multi-protocol URL transfer library

Abstraction layer over Alamofire for Swift networking

Modern and efficient HTTP client for Java and Android

Elegant and simple HTTP client for Python

Ergonomic HTTP client for Rust

Type-safe HTTP client for Android and Java by Square

Toolkit for building concurrent and distributed systems in Scala

Cross-platform asynchronous networking library for C++

Distributed task queue for asynchronous processing

Official asynchronous concurrency library for Kotlin

Official Apache Kafka client for Java

Cross-platform asynchronous I/O library

Robust background job processor for Elixir

Data parallelism library for Rust

Efficient background job processor for Ruby

Asynchronous runtime for reliable Rust applications

Type-safe effects and concurrency library for Scala

Declarative statistical visualization library for Python

Library for creating interactive visualizations in browsers

Elegant graphics system based on grammar of graphics for R

Interactive graphing library for Python

Unified visualization interface for Julia

Enterprise-level React components by Alibaba

Accessible components with built-in styling and theming system

Immediate mode GUI library for tools and debugging

Modern React components with built-in hooks and utilities

Most popular React component library implementing Material Design

Beautiful and modern React UI library with Tailwind CSS

Unstyled accessible UI primitives for building design systems

Copy-paste components built on Radix UI and Tailwind CSS

Official Python client for the Anthropic Claude API

Yandex gradient boosting library optimized for categorical features

Elegant machine learning library for Julia

Fast gradient boosting framework from Microsoft

Official Python client for the OpenAI API

Automatic hyperparameter optimization framework

Hugging Face library for pretrained NLP and ML models

Optimized gradient boosting library for performance and speed

Complete GraphQL state management solution

React hooks for data fetching with stale-while-revalidate strategy

Async state manager for data fetching with caching and sync

End-to-end type-safe APIs without code generation

High-performance async PostgreSQL driver for Python

High-performance micro-ORM for .NET

Lightweight and fast NoSQL database for Flutter

Async MongoDB driver for Python based on PyMongo

Official MongoDB driver for Python

Fast and easy-to-use mobile database for Swift

Official Python client for Redis

Android Jetpack SQLite persistence library

Serverless embedded SQL database

Async SQL client with compile-time query verification

Python classes without boilerplate with validation and conversion

High-performance JSON processing library for Java

Object serialization/deserialization and validation library

Fast serialization with type validation for JSON and MessagePack

Popular and flexible JSON library for .NET

Modern JSON library for C++ with intuitive syntax

Fast and correct JSON library for Python written in Rust

Serialization and deserialization framework for Rust

Zero-config animations for web apps with one line of code

Production-ready animation library for React

Professional animation platform with scroll and SVG support

Physics-based animation library for natural motion

Modern testing framework for C++ with expressive syntax

Unit testing framework for C

Library for creating test fixtures declaratively

Library for generating realistic fake data

Property-based testing library for Python

Modern testing framework for Java and the JVM

Flexible and comprehensive testing framework for Kotlin

Elegant mocking framework for Java unit tests

Most popular mocking library for .NET

Popular and mature testing framework for .NET

Elegant testing framework with minimalist syntax for PHP

Pytest plugin for testing asyncio code

Pytest plugin for code coverage measurement

Pytest plugin providing mocker fixture

Mature and complete testing framework for Python

BDD testing framework for Swift

Testing library focused on user behavior rather than implementation

Testing toolkit with assertions and mocks for Go

Advanced testing framework for Java inspired by JUnit and NUnit

Modern testing framework for .NET

Library for creating beautiful composable CLIs

Library for terminal user interfaces

Library for rich text and terminal formatting

Modern CLI with type hints, from FastAPI creator

Apple's native framework for reactive programming

Reactive Extensions implementation for Swift

Library for parallel computing in Python

Data visualization library for Python

API mocking with Service Workers for browser and Node

Fundamental library for scientific computing in Python

Data analysis library for Python

Fast DataFrame library written in Rust

Data validation with Python type hints

Classic ML library for Python

Statistical visualization library based on Matplotlib

Library for simplifying distributed training in PyTorch

Quantization library for training and inference at reduced precision

Library for accessing and processing ML datasets efficiently

Useful helpers for React Three Fiber

TypeScript library for building production systems

Library for getting structured outputs from LLMs using Pydantic

JavaScript game library (formerly Kaboom)

Type-safe SQL query builder for TypeScript

Simple library for building web components

Virtual DOM replacement for React

Tailwind CSS for React Native

Library for structured generation with LLMs using grammars

Authentication middleware for Node.js

Fast 2D rendering engine

Fast 3kB React alternative with the same API

React renderer for Three.js

Build emails with React components

State management library for React

Universal UI kit for React Native and Web

HuggingFace library for reinforcement learning training of LLMs

Instant on-demand atomic CSS engine

Proxy-based state management for React

Tabular data manipulation in Julia

Grammar of data manipulation for R

Python bindings for Apache Arrow with efficient columnar format

Collection of R packages for data science

Out-of-core DataFrames for big data visualization and exploration

Performant CSS-in-JS library with multiple APIs

Zero-runtime CSS-in-JS from the Chakra UI team

CSS-in-JS with tagged template literals and theming

Meta's solution that powers Facebook, Instagram and WhatsApp

CSS-in-TypeScript with full type safety and zero-runtime

Validation library with fluent API for .NET

Predictable state management library for Flutter using BLoC pattern

All-in-one micro-framework for Flutter

Atomic state management inspired by Recoil but simpler

Reactive state management with observables and computed values

InheritedWidget wrapper for simple state management in Flutter

Official, opinionated Redux toolset with simplified patterns

Reactive and safe state management framework for Flutter

State machines and statecharts for complex UI logic

Minimalist state management for React with hooks-based API

Popular form library with controlled inputs and validation

Performant forms with minimal re-renders using uncontrolled inputs

Schema validation library with chained API

TypeScript-first schema validation with static type inference

Declarative router for Flutter with deep linking support

Powerful and flexible HTTP router for Go

Standard React routing library now merged with Remix

Type-safe router with first-class search params support

Dependency injection library for Android built on Dagger

Scriptable Python load testing tool

High-performance Apache logging framework for Java

Reference implementation of SLF4J for Java logging

Simplified batteries-included logging library

Structured logging for .NET with extensible sinks

Simple logging facade for Java with multiple backends

Ultra-fast logging library for C++

Structured logging library for Python

Instrumentation framework for Rust applications

High-performance structured logger for Go

Modern authentication and user management platform

Real-time collaboration infrastructure

Real-time multiplayer infrastructure

Microsoft SDK for integrating LLMs into enterprise applications