Find the best open-source alternatives

A low-code admin panel and business intelligence Rails engine configurable entirely from the UI, no DSL required.

A high-performance, extensible Minecraft reverse proxy and library written in Go, designed as a scalable alternative to Velocity/BungeeCord.

A grep-based source code auditing tool that finds potential security flaws using signature databases for multiple programming languages.

A Nix-based tool for managing PureScript projects with a custom package set and CLI.

A lightweight, customizable toast notification library for Angular 20+ with Angular Material design and flexible APIs.

A lightweight and extensible infrastructure for building high-quality web applications based on ASP.NET Core.

Docker images providing the latest Nginx with LuaJIT and additional Lua modules, built for multiple Linux distributions.

A cross-platform, terminal-based Spotify client written in Rust, offering a lightweight and keyboard-driven music experience.

A Go package for detecting MIME types and file extensions based on magic numbers, prioritizing common formats and supporting extension.

A database migration tool for sidegrading from Adobe Commerce (Enterprise) to Magento Open Source (Community) by removing EE-specific schema.

Static and dynamic D bindings to the FreeType library, compatible with BetterC, @nogc, and nothrow.

A free marketplace for CC0-licensed 3D assets, models, textures, and HDRI files ready for use in Three.js and React Three Fiber projects.

A CMake-based build system for Node.js native modules, offering a drop-in replacement for node-gyp.

A language-natural persistence layer for Java that treats the database as a sorted key/value store and implements everything else in Java.

A macOS QuickLook extension that adds thumbnail, preview, and metadata support for non-native video and audio file formats.

A native Mac app wrapper for Facebook Messenger that provides a desktop experience.

An open source, self-hosted live video streaming and chat server for complete ownership of your live streams.

A Dart framework for describing and verifying hardware, enabling modern software practices in hardware development.

Enterprise-grade open-source PostgreSQL distribution with HA, monitoring, 460+ extensions, and Infrastructure as Code for self-hosting.

A beautiful, fast, and fully open-source desktop mail client for Mac, Windows, and Linux.

A free, open-source, cross-platform archive manager and file utility supporting 200+ archive formats.

Lint any project in any language using Swift and regular expressions, with validation and autocorrect support.

A Common Lisp development environment for Vim and Neovim with REPL integration, debugging, and IDE-like features.

A PowerShell-based build automation tool that leverages existing command-line knowledge with a syntax inspired by rake.

A lightweight, TypeScript-first functional programming library for JavaScript with auto-currying and point-free style.

A header-only C++11 library for safe and efficient interaction with R objects from C++ code.

An open-source desktop app for creating beautiful product demos and walkthroughs with screen recording, annotations, and effects.

An open-source AI engine that runs LLMs, vision, voice, and image/video models on any hardware with drop-in OpenAI API compatibility.

A fast, safe, and intuitive Git client for macOS with a live interactive graph, unlimited undo, and Time Machine-like snapshots.

Installs the Homematic OCCU on Debian-based systems to run a CCU3 directly without containers.

A fast, modern, secure kernel-based VPN tunnel using state-of-the-art cryptography.

A .NET testing and reporting framework for Behavior Driven Testing, offering a pure code-based alternative to SpecFlow.

An open source trusted cloud native registry that stores, signs, and scans container images and Helm charts.

A JavaScript parser, mangler, and compressor toolkit for ES6+ that minifies code to reduce file size.

A lightweight Ruby tool that automatically restarts applications when filesystem changes are detected.

A low-code admin panel and business intelligence Rails engine configurable entirely from the UI, no DSL required.