Open source tools
1048 tools in our directory are listed as open source, from 30 sections: Frameworks (89), Open Source (82), UI & Components (80), Dev Utilities (55) and 26 more sections.
Tools
GraphQL Code Generator
Generates typed clients, resolvers and SDKs from a GraphQL schema
GraphQL Yoga
Cross-platform GraphQL server with plugins, caching and rate limiting
Graphviz
Draws graphs and networks from a simple text language
Great Expectations
Open source framework for testing and documenting data quality
Grist
Relational spreadsheet for building no-code apps with access rules
GrowthBook
Feature flags, A/B tests and product analytics in one platform
gRPC
Open source high performance RPC framework using Protocol Buffers
Grype
Open source CLI that finds known vulnerabilities in container images
Hanami
Ruby web framework with separated concerns and a data layer
HandBrake
Open source video transcoder for converting nearly any format
Harbor
Open source container registry with scanning and access control
Hasura
Instant GraphQL API for your databases, with built-in access rules
Hatchet
Open source engine for background tasks, workflows and AI agents
Haystack
Open source framework for building search, RAG and agent pipelines
Headlamp
User-friendly Kubernetes UI that you can extend with plugins
Headless UI
Unstyled, accessible UI components for React and Vue
Headscale
Self-hosted, open source server for a Tailscale network
HedgeDoc
Self-hosted collaborative Markdown editor for real-time notes
HeidiSQL
Free SQL client for MariaDB, MySQL, SQL Server and PostgreSQL
Homarr
Customizable dashboard for apps and services on your server
Home Assistant
Open source home automation that runs locally with privacy first
Homebrew
Package manager for command line tools and apps on macOS and Linux
Homepage
Customizable start page dashboard for self-hosted services
Hono
Small web framework that runs on Node.js, Bun, Deno and Cloudflare
Hoppscotch
Open source web app for building and testing API requests
httpbin
Simple HTTP service that echoes requests and returns test responses
HTTPie
Friendly command-line and desktop client for testing HTTP APIs
Husky
Runs Git hooks from your project so checks run on every commit
Hyperswitch
Open source payment switch for routing across processors
Hypothesis
Property-based testing library for Python that finds edge cases
Icinga
Open source infrastructure monitoring with alerts for hybrid setups
Looking for something else? Browse the full directory.












































