Find the best open-source alternatives

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

A browser-based music tracker that plays and edits Amiga MOD and FastTracker XM files using plain JavaScript.

A lightweight JavaScript library for monitoring web font loading using scroll events.

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 free and open-source cross-platform functional testing solution for APIs and web services.

A cross-platform hex editor for viewing and editing large files with disk device support.

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

A multi-chain animation library for iOS that simplifies creating complex, readable animations in Objective-C and Swift.

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

An HTTP network request monitor for React Native with an in-app interface for iOS and Android, requiring no native code.

The official command-line interface for managing IBM Cloud resources and services.

A fast Rust/Tokio command-line utility for running shell commands in parallel with a GNU Parallel/xargs-like interface.

A Ruby gem that catches unsafe PostgreSQL migrations in development and provides helpers to run them safely in production.

A mobile database for Android that replaces SQLite and ORMs with a fast, object-oriented, and sync-ready data layer.

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

A collection of object-oriented Java primitives as an alternative to procedural libraries like Guava and Apache Commons.

OWASP's software composition analysis tool that identifies project dependencies and checks for known vulnerabilities.

An open-source virtual office platform for distributed teams to work together in shared online spaces.

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

A file-system activity monitor for continuous compilation and reloading of Erlang files and templates.

An unofficial Ember Data Adapter and Serializer for Cloud Firestore with realtime bindings and FastBoot support.

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

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

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

An all-in-one open-source platform for product analytics, feature flags, session replay, experiments, and more to help build successful products.

An open-source container update monitoring tool with a modern dashboard, supporting 23 registries, 20 notification triggers, and automated updates.

A hackable, template-driven web GUI for SQL database exploration and performance analysis, written primarily in SQL.

A simple ActiveRecord mixin for soft-deleting records by flagging them as discarded, without overriding ActiveRecord methods.

JavaScript implementation of Karplus-Strong guitar synthesis using asm.js and Web Audio API.

A modern full-stack ASP.NET Core framework supporting MVC, Model-View, Controller-View, View-only, and Web-Forms patterns.

Official Elastic APM JavaScript agent for monitoring real user performance and errors in web applications.

An extremely fast PHP linter, formatter, and static analyzer written in Rust.

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

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

An extremely fast PHP linter, formatter, and static analyzer written in Rust.