Free
Recharts
Open SourceData Viz & Charts · Frontend
Composable charting library for React built on SVG with a declarative, component-based API.
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Data Viz & Charts · Frontend
Composable charting library for React built on SVG with a declarative, component-based API.
Launchers & Automation · Developer Utilities
Free, open-source macOS window manager — snap and resize windows with keyboard shortcuts.
API Documentation · API Tools
OpenAPI linting, bundling and three-panel reference docs.
State & Forms · Frontend
Predictable state container for JavaScript apps with Redux Toolkit.
Browser DevTools · Development Environment
Time-travel debugging for Redux — replay actions, diff state and trace dispatched updates.
Frameworks · Frontend
Web-standard React framework merged into React Router v7.
Smart Contracts · Web3 & Blockchain
Browser IDE for Solidity — write, compile, deploy and debug contracts with zero local setup.
PaaS & Edge · Cloud Platforms
Unified cloud to build and run apps, sites and databases.
AI Coding Assistants · AI for Developers
Cloud IDE with AI agents for building and deploying apps quickly.
Email · API Tools
Developer-first email API with React Email templates.
Payments · API Tools
Subscription infrastructure for mobile apps — cross-platform in-app purchases, entitlements and analytics.
Error Tracking · Monitoring & Observability
Real-time error tracking and debugging for many platforms.
Build & Lint · Frontend
Module bundler optimized for libraries and tree-shaking.
AI Coding Assistants · AI for Developers
Community-driven AI dev agent for VS Code with multiple modes.
Build & Lint · Frontend
Fast Rust-based webpack-compatible bundler.
Programming Languages
Official Ruby language website with documentation and news.
Frameworks · Backend
Full-stack Ruby framework following convention over configuration.
CLI Tools · Development Environment
An extremely fast Python linter and formatter, written in Rust.
Programming Languages
Official Rust website: documentation, book, crates and tooling.
Full-stack Boilerplates · Project Starters
Production-grade Django + React boilerplate — subscriptions, teams, Celery and a admin-rich starter you own.
Headless CMS · Backend
Composable headless CMS with a real-time editing studio.
Ecosystem · CSS Tools
The mature CSS extension language with variables and nesting.
Programming Languages
Official Scala language site with documentation and downloads.
API Documentation · API Tools
Beautiful OpenAPI docs and modern API client, open source.