Find the best open-source alternatives

A free and open-source BitTorrent client written in C++/Qt, offering a fast, stable, and feature-rich alternative to other clients.

A HomeMatic CCU3 addon that brings HomeKit support to your HomeMatic devices without requiring extra hardware.

A self-hosted online file converter supporting over 1000 different formats across documents, images, video, and more.

Translates Oniguruma regex patterns (used by Ruby, TextMate, VS Code) to native JavaScript RegExp with high accuracy.

A Ruby gem for performing time calculations based on business hours, holidays, and custom working schedules.

A Linux/Unix privilege delegation tool using Role-Based Access Control (RBAC) to grant precise capabilities instead of full root access.

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

A minimalist Ruby web framework for building Rack applications with a focus on simplicity, maintainability, and performance.

A C# library providing an Entity Framework-like interface for MongoDB, featuring change tracking, fluent mapping, and entity buckets.

A stable, mature Objective-C library for Twitter's REST API 1.1, offering comprehensive access and flexible authentication.

Automatic version management and state recovery tool that works with any language and stores versions in git tags.

A free, hosted integration platform for developers to connect APIs and build event-driven automations with 1000+ pre-built apps.

A static code analyzer that detects security vulnerabilities in C# and VB.NET applications.

A high-performance, multi-process, multi-fiber Rack-compatible web server for Ruby with native HTTP/1, HTTP/2, and TLS support.

A JavaScript library for building high-performance interactive 2D graphics and animations on the HTML5 Canvas.

A lightweight C++20 testing framework focused on minimal heap allocation and fast compilation.

A free and open-source parametric 3D CAD modeler for designing real-life objects of any size.

A high-performance, low-memory JSON diff and patch library for System.Text.Json with RFC 6902 support.

An open-source machine learning framework for building classical, deep, or hybrid ML applications with a focus on performance and portability.

Official Angular SDK for Stream Chat, providing components and services to build chat applications.

A web control panel for deploying applications on your own servers using Dokku.

A lightweight Elixir library for parameter validation and casting using Ecto.Schema, similar to Rails strong parameters.

A procedural texture authoring and 3D model painting tool built on the Godot game engine.

An online mind mapping editor with native-like interaction, cloud sync, and instant sharing capabilities.

Data-driven API middleware for Node.js/Express with an admin interface for creating REST endpoints from JSON schemas.

A pure PHP library for reading and writing Word documents in OOXML, ODF, RTF, HTML, and PDF formats.

A TypeScript ORM for Node.js based on Data Mapper, Unit of Work, and Identity Map patterns, supporting multiple SQL and NoSQL databases.

A dual-pane file manager with Vim-style modal hotkeys, built with Svelte and Wails for cross-platform desktop use.

A high-performance, multi-protocol message broker supporting AMQP, MQTT, and STOMP for diverse messaging use cases.

A production-ready SaaS boilerplate built with Go and React, featuring multi-tenancy, Stripe billing, white-label branding, and AI-agent ready architecture.

A full-featured database management tool written in a single PHP file, supporting MySQL, PostgreSQL, SQLite, and more.

An autonomous open-source security agent for Linux that detects, scores, and automatically responds to threats using eBPF, AI, and collaborative defense.

A terminal-based resource monitor for CPU, memory, disks, network, processes, and GPU with a responsive UI and full mouse support.

A unified, zero-config monitoring solution for Docker and Kubernetes that auto-discovers containers, endpoints, certificates, and more in a single container.

A distributed storage benchmark tool for file systems, object stores, and block devices with GPU support.

A modern, fast, and secure JavaScript & TypeScript runtime built in Rust, featuring zero-config TypeScript and rich Web APIs.