Find the best open-source alternatives

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

An open-source hybrid integration platform for connecting applications, data, and systems with enterprise-grade features.

An open-source fantasy computer for creating and sharing tiny retro games and programs, built with LÖVE.

An open-source metrics pipeline and monitoring system for enterprise cloud-native infrastructure, built on OpenMetrics for interoperability.

A high-performance, memory-efficient, and scalable HTTP/1.1 web server for OCaml, built with Angstrom and Faraday.

A reactive Python notebook that's reproducible, git-friendly, and deployable as scripts or apps.

Open-source supply chain security scanner that automatically detects vulnerabilities like Log4Shell in dependencies and notifies via GitHub pull requests.

A lightweight cross-platform entry point library for games, designed as a minimal alternative to SDL and GLFW.

A single C source file library implementing zlib compression, PNG writing, and ZIP archive manipulation with MIT licensing.

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

An open-source game engine for playing and modding The Elder Scrolls III: Morrowind with modern enhancements.

A utility for Sitecore that serializes and syncs database items (templates, renderings) across environments using source control.

A durable background task queue and workflow orchestration platform built on Postgres with observability and flow control.

A lively vi editor with test coverage, flexibility, and live REPL integration.