Find the best open-source alternatives

A mobile database that runs directly inside phones, tablets, or wearables as an alternative to SQLite and key-value stores.

A lightweight web browser that recreates the classic Opera 12 UI and spirit using Qt5, focused on power users.

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

Turns a Raspberry Pi into a Chromecast-like device for streaming media via simple HTTP commands.

A PHP library for on-demand image manipulation with an HTTP-based API, similar to cloud image services.

An ES6+ aware minifier based on the Babel toolchain, enabling direct minification of modern JavaScript.

A Neovim plugin for browsing the file system and other tree-like structures with multiple layout styles and a focus on stability.

Design and prototype custom UI, animations, and transitions directly in Interface Builder for iOS apps without writing code.

A framework providing developer tools for writing Solana programs (smart contracts) with Rust and TypeScript.

A self-hosted, privacy-first CAPTCHA alternative using proof-of-work to protect websites and APIs from spam without tracking.

A generic and open signature format for describing log event detections, shareable across SIEM systems.

A CPU and memory-efficient wide-spectrum content blocker for Chromium and Firefox, blocking ads, trackers, and malware.

A JavaScript library for generating word cloud layouts with HTML5 canvas, inspired by Wordle.

A modular Ruby toolkit for handling file uploads, processing, and storage with support for cloud services and multiple ORMs.

An open source, serverless security data lake for AWS that normalizes logs, enables detection-as-code, and supports petabyte-scale threat hunting.

A high-performance, zero-allocation JSON serializer for C# that reads/writes directly to UTF8 binary.

A Zsh configuration framework with a built-in plugin manager, modular extensions, and blazing-fast startup speed.

A minimal shell script that changes the current Ruby version by updating environment variables.

A Python-based interactive packet manipulation program and library for network analysis, scanning, and security testing.

A flexible React calendar component for displaying events, inspired by Google Calendar and Outlook.

A platform to programmatically author, schedule, and monitor workflows as code.

yt-dlp is a powerful command-line tool for downloading audio and video from thousands of websites.

A JavaScript library providing ClojureScript's persistent data structures and functional APIs for immutable data manipulation.

A masterless, cloud-scale, fault-tolerant distributed computation system for batch and stream processing written in Clojure.

A macOS audio utility that automatically pauses music, controls per-app volumes, and records system audio.

A Node.js library for automating Chrome locally or headless on AWS Lambda with a simple API.

An open-source JavaScript remake of SimCity 2000 with WebGL rendering and plans for enhanced features.

A zero-dependency, protocol-compliant server and client for GraphQL over WebSocket connections.

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

A simple, responsive, modern SVG charting library with zero dependencies, inspired by GitHub's design.

A small, fast Canvas 2D-based charting library for time series, lines, areas, ohlc, and bars.

A secure, modern alternative to JWT for creating and verifying platform-agnostic security tokens.

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

A self-hosted media tracker for movies, TV shows, anime, manga, video games, books, comics, and board games.

An open-source macOS app for elegant window management with a customizable radial menu and keyboard shortcuts.

A self-hosted media server for movies, series, and anime with automatic metadata scanning and minimal maintenance.