Find the best open-source alternatives

A modern, memory-safe TLS library written in Rust, implementing TLS 1.2 and 1.3 for clients and servers.

A simple Python library for queueing jobs and processing them in the background with workers, backed by Redis/Valkey.

A standard library for JavaScript and TypeScript with an emphasis on numerical and scientific computation.

A daemonless tool for managing OCI containers and pods, supporting rootless operation and Docker-compatible commands.

A simple terminal UI for managing Docker containers and services with keyboard shortcuts and real-time metrics.

A fast and low overhead web framework for Node.js, focused on performance and developer experience.

A mobile database for iOS, macOS, tvOS, and watchOS that replaces Core Data and SQLite with an object-oriented model.

A free, open-source social network server based on ActivityPub for self-hosted, federated microblogging communities.

Deploy serverless functions and microservices to Kubernetes with ease, using any language and auto-scaling.

A headless Node.js CMS for modern publishing, memberships, subscriptions, and newsletters.

A free, self-hostable Airtable alternative for building databases online with a spreadsheet-like interface.

An open-source voxel game engine and creation platform with easy modding and game development tools.

A lightweight comments system for websites that uses GitHub Discussions for storage and moderation.

A mobile database for iOS, macOS, tvOS, and watchOS that replaces Core Data and SQLite with an object-oriented, reactive model.

A JavaScript data grid with a spreadsheet-like look and feel, supporting React, Angular, and Vue for building data-rich applications.

A .NET library for background job processing with fire-and-forget, delayed, and recurring tasks, no Windows Service required.

An API-first open-source eCommerce platform for fast-growing businesses, supporting B2B, marketplaces, and multi-tenant scenarios.

An open-source productivity launcher for quick application launching, web searches, file navigation, and calculations.

A modern, user-friendly command-line HTTP client for testing, debugging, and interacting with APIs.

A powerful macOS desktop automation tool that bridges system APIs with a Lua scripting engine.

A distributed cloud-native messaging and streaming platform for building event-driven applications with high performance and reliability.

A batteries-included, simple-to-use Flask extension for adding customizable admin interfaces with support for multiple ORMs.

A .NET library for background job processing with fire-and-forget, delayed, and recurring tasks, no Windows Service required.

An open-source APM tool for monitoring and tracing transactions in large-scale distributed Java, PHP, and Python applications.

A Kafka-compatible streaming data platform that is 10x faster, simpler to operate, and free from ZooKeeper and JVMs.

A near-zero config .NET library for task scheduling, queuing, caching, event broadcasting, and mailing with simple, expressive syntax.

Create PDF documents interactively using HTML, Pug, and web technologies like CSS and JavaScript.

A modern, multi-threaded HTTP benchmarking tool for generating significant load on web servers and APIs.

Expose your localhost to the world for easy testing and sharing without DNS or deployment.

A standalone UI tool for managing Git repositories with Windows Explorer and Visual Studio integration.

A free, open-source screen capture and file sharing tool for Windows with extensive customization and upload destinations.

A system for building agents that perform automated tasks online, like a self-hosted IFTTT or Zapier.

A fast, privacy-first desktop API client for REST, GraphQL, WebSockets, SSE, and gRPC.

A zero-configuration web application bundler that automatically handles assets, transforms, and dependencies.

A dynamic, real-time, high-performance cloud-native API gateway and AI gateway for traffic management and service orchestration.

An open-source AI memory tool that records your screen and audio locally, enabling search and automation agents based on your computer activity.