Find the best open-source alternatives

A heap memory profiler for Linux that traces allocations with stack traces to find memory leaks, hotspots, and temporary allocations.

An open-source, all-in-one development platform providing backend infrastructure and web hosting for web, mobile, and AI applications.

A free, offline-first desktop diagramming application built on Electron with complete internet isolation for security.

A type-safe dependency injection toolkit for Go 1.18+ using generics, designed to replace uber/dig.

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

A Rails forum/messageboard engine designed to be simple and feature-rich, easily integrated into existing Rails applications.

Open-source, headless, multi-tenant eCommerce platform built with .NET Core and MongoDB.

An open-source game launcher for Epic Games, GOG, and Amazon Games on Linux, Windows, and macOS.

A modern JSON library for Kotlin and Java that makes it easy to parse JSON into classes and serialize objects to JSON.

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

An open-source Zigbee to MQTT bridge that lets you control Zigbee devices without proprietary vendor gateways.

A self-hosted unified push service for sending notifications to Android, iOS, and Kindle mobile apps via RESTful APIs.

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

Immutable date and time library for JavaScript, ported from Java's ThreeTen backport with a domain-driven API.

An extremely fast Python type checker and language server written in Rust, offering comprehensive diagnostics and IDE integration.

A distributed computation system written in Go for parallel and cluster processing, similar to Hadoop MapReduce and Spark.

A macOS menu bar app that displays your calendar meetings and provides quick access to join or create meetings.

A Butter Knife-inspired view binding library for Android written in Kotlin, now deprecated.

A drag-and-drop website builder and CMS with built-in e-commerce capabilities, built on Laravel.

A privacy-first, open-source platform for knowledge management and collaboration using a networked note-taking approach.

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

A .NET library for automated UI testing of Windows applications using Microsoft's UI Automation framework.

A scalable, language-agnostic real-time messaging server for building chat apps, live features, and collaborative tools.

A C++20 single-header, macro-free μ(micro)/unit testing framework focused on fast compilation and modern C++ features.

A standalone GUI for visualizing and analyzing Linux perf data, featuring flame graphs, timeline filtering, and off-CPU profiling.

Open-source GameStream client for embedded Linux systems like Raspberry Pi, enabling remote game streaming from PC.

A JavaScript library for reading, writing, and processing spreadsheet data across Excel, CSV, and other formats.

An open-source time-series database for high-speed ingestion and low-latency SQL queries.

A powerful, plugin-based JavaScript WYSIWYG HTML editor with extensive framework integrations.

A fast, configurable, extensible, and beautiful drop-in replacement for golint with custom rules and strict presets.

Run any executable as a native Windows service with automatic restarts, health checks, and real-time management.

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

A libre file transfer client for macOS and Windows supporting FTP, SFTP, WebDAV, Amazon S3, Azure, OneDrive, and more.

A tiny and elegant JavaScript HTTP client based on the Fetch API with retries, timeouts, and hooks.

Identifies compilers, packers, obfuscators, and other characteristics in Android APK and DEX files.

A free and open-source desktop application for managing and organizing code snippets with a powerful built-in editor.