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Most searched proprietary tools with open-source replacements
An open-source API development ecosystem for testing HTTP, WebSocket, GraphQL, and other APIs with real-time collaboration.
An open-source, fullstack Next.js framework that provides a TypeScript backend and admin panel, usable as a headless CMS or for building applications.
A privacy-focused, open-source note-taking app with end-to-end encrypted sync across all major platforms.
An open-source API development ecosystem for testing HTTP, WebSocket, GraphQL, and other APIs with real-time collaboration.
Showing 2,563 products with open-source alternatives
An open-source productivity launcher for quick application launching, web searches, file navigation, and calculations.
A full-featured computer algebra system (CAS) written in pure Python for symbolic mathematics.
An open-source Q/A social network where users ask and answer questions publicly or anonymously.
A distributed storage system for object storage (S3), file systems, and Iceberg tables, optimized for billions of files with O(1) disk access.
A headless Node.js CMS for modern publishing, memberships, subscriptions, and newsletters.
A cross-platform framework for working with schematized data, now archived as of March 2025.
A professional animated sprite editor and pixel art tool for game developers and digital artists.
A unified tool that manages development tool versions, environment variables, and project tasks from a single configuration.
A fast and low overhead web framework for Node.js, focused on performance and developer experience.
A JavaScript-native Ethereum Virtual Machine that runs in browsers, Node.js, Bun, and Deno for instant contract simulation and testing.
A cloud-native, open source API gateway written in Go, supporting REST, GraphQL, TCP, and gRPC protocols.
A lightweight Ruby wrapper for ImageMagick command-line tools, designed as a memory-efficient alternative to RMagick.
A sampling JVM profiler that avoids safepoint bias for accurate performance analysis.
Node-RED packaged as an addon for Homematic CCU3 and RaspberryMatic, enabling visual smart home automation.
A free software media system for managing and streaming your media from a dedicated server to multiple devices.
A fully featured open source mail delivery platform for incoming and outgoing email, designed for websites and web servers.
A pluggable linting utility for identifying and reporting patterns in JavaScript and ECMAScript code.
A lightweight, multi-role, whitelist-based authorization gem for Rails and other Ruby applications.
A .NET document database interface that works over any relational database, providing document storage with SQL power.
A free, open-source DNS server that blocks ads and trackers network-wide for all your home devices.
A self-hosted media tracker for movies, TV shows, anime, manga, video games, books, comics, and board games.
A free, cross-platform Electronic Design Automation (EDA) suite for designing printed circuit boards.
ripgrep is a fast, line-oriented search tool that recursively searches directories for regex patterns while respecting gitignore rules.
A Neovim plugin that maps tmux keybindings to Neovim's windows, buffers, and terminals as a tmux replacement.
A lightweight comments system for websites that uses GitHub Discussions for storage and moderation.
Open-source video conferencing platform with HD quality, content sharing, and end-to-end encryption for self-hosted or embedded meetings.
A Python implementation of a grammar of graphics for creating complex and beautiful statistical plots.
A fast and versatile fuzzy finder written in Rust, designed to quickly navigate files, lines, and commands.
A BSD-licensed readline and libedit replacement with UTF-8 support, syntax highlighting, hints, and cross-platform compatibility.
A multi-threaded Python brute-forcing tool with a modular design for reliable and flexible password guessing attacks.
A roguelike dungeon management game where you build and defend your dungeon while raiding others.
A powerful macOS desktop automation tool that bridges system APIs with a Lua scripting engine.
An open-source, self-hosted customer support platform with live chat, email, and omnichannel messaging.
Open-source disk encryption software with enhanced security features, based on TrueCrypt.
A self-hosted CMS platform built on Laravel that simplifies web development workflows.
A Clojure build framework and ad-hoc script evaluator that provides a runtime environment for building projects from Clojure scripts.