Free
Fontsource
Open SourceTypography & Fonts · Design & Prototyping
Self-host open-source fonts as npm packages — versioned, offline-friendly and dependency-pinned.
fontsnpmself-hostedperformance
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Typography & Fonts · Design & Prototyping
Self-host open-source fonts as npm packages — versioned, offline-friendly and dependency-pinned.
Hosting & Collaboration · Git & Version Control
Community-driven, self-hosted software forge (powers Codeberg).
Internationalization · Frontend
Internationalization toolkit built on ICU MessageFormat — react-intl and friends for dates, numbers and plurals.
Smart Contracts · Web3 & Blockchain
Blazing-fast Ethereum toolkit in Rust — forge tests in Solidity, anvil local chain and cast for contract calls.
Animation · Frontend
Production-ready motion library for React and vanilla JS.
Stock & Placeholders · Image & Media
Collaborative database of CC-licensed sound effects and samples — the go-to library for UI sounds and foley.
Load & Performance · Testing
Load testing with a powerful Scala-based DSL and great reporting.
Models & LLM APIs · AI for Developers
Google's AI assistant and multimodal model family.
AI Coding Assistants · AI for Developers
Google's open-source AI agent for the terminal (trending).
Headless CMS · Backend
Open-source publishing platform for blogs and newsletters.
Frameworks · Backend
The most popular HTTP web framework for Go.
Git & Version Control
Official website for the Git version control system.
Documentation Generators · PDF & Documents
Collaborative documentation platform with Git-based workflow.
Hosting & Collaboration · Git & Version Control
Lightweight, self-hosted Git service written in Go.
Secret Scanning · Security
Enterprise secrets detection and remediation platform.
Hooks & Commits · Git & Version Control
GitHub's built-in CI/CD automation with a huge marketplace of actions.
CLI Tools · Development Environment
Official GitHub command-line tool for PRs, issues and repos (gh).
Editors & IDEs · Development Environment
Cloud dev environments hosted by GitHub, configurable per repo.
AI Coding Assistants · AI for Developers
AI pair programmer in your editor with chat, completions and agents.
Hosting & Collaboration · Git & Version Control
DevOps platform with Git hosting and built-in CI/CD; self-hostable.
Hooks & Commits · Git & Version Control
GitLab's integrated continuous integration and delivery system.
Secret Scanning · Security
Detect and prevent hardcoded secrets in Git repositories.
Programming Languages
Type-safe language on the Erlang VM with a friendly compiler.
Mobile UI Libraries · Mobile Development
Copy-paste React and React Native components — universal, themeable and built on a styled system.