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Most searched proprietary tools with open-source replacements
An open-source API development ecosystem for testing HTTP, WebSocket, GraphQL, and other APIs with real-time collaboration.
An open-source, fullstack Next.js framework that provides a TypeScript backend and admin panel, usable as a headless CMS or for building applications.
A privacy-focused, open-source note-taking app with end-to-end encrypted sync across all major platforms.
A standard library for JavaScript and TypeScript with an emphasis on numerical and scientific computation.
Showing 2,872 products with open-source alternatives
A lightweight C++20 testing framework focused on minimal heap allocation and fast compilation.
A lightweight JavaScript/TypeScript library for parsing, formatting, manipulating, and internationalizing dates using native Date objects.
A JavaScript library for building high-performance interactive 2D graphics and animations on the HTML5 Canvas.
A Java library providing efficient, zero-overhead access to native C++ code using JNI and annotations.
A super minimal, modular presentation micro-framework for modern browsers with a rich plugin ecosystem.
A self-hosted budgeting application based on the Bucket Budgeting Principle, inspired by YNAB and Buckets.
A Go-based toolset for data extraction, transformation, and loading, providing powerful data synchronization capabilities.
A next-generation HTTP client for Spring that implements client-side response routing, embracing HTTP's full power.
A BOINC-based distributed password cracking system with a modern web interface for cybersecurity professionals.
An open-source, horizontally scalable binary artifact management tool supporting Maven, Docker, npm, and more.
A free, cross-platform C library for generating PDF files with support for text, images, fonts, encryption, and CJK encoding.
A PCI-DSS compliant card data handling system built on PostgreSQL and PL/pgSQL for secure payment processing.
A command-line tool for launching Apache Spark clusters on AWS EC2 with fast, configurable deployments.
A free, open-source alternative to Spark UI and Spark History Server with enhanced CPU and memory metrics visualizations.
An extremely fast Python package and project manager written in Rust, replacing multiple existing tools.
A PowerShell-based build automation tool that leverages existing command-line knowledge with a syntax inspired by rake.
A browser-based space exploration game featuring procedurally generated, infinite star systems with seamless planetary travel.
A fast Rust-based JavaScript/TypeScript bundler with Rollup-compatible API, intended for Vite's future bundler.
A responsive layout framework for Ember.js focused on performance and maintainability with minimal runtime overhead.
A Chrome DevTools extension for visualizing and interacting with Web Audio API routing graphs.
A high-performance, multi-process, multi-fiber Rack-compatible web server for Ruby with native HTTP/1, HTTP/2, and TLS support.
A CLI tool designed to simplify daily React Native development tasks and eventually replace the react-native CLI.
A static code analyzer that detects security vulnerabilities in C# and VB.NET applications.
Data-driven API middleware for Node.js/Express with an admin interface for creating REST endpoints from JSON schemas.
A mature, efficient backend framework for Deno, inspired by Nest.js, for building scalable HTTP/WebSocket servers and KVQueue workers.
A C++ middleware and framework for building distributed service-oriented systems with automated threading, IPC, and location-transparent Object RPC.
An open-source HTML5 video player with Flash fallback for web developers.
A free, hosted integration platform for developers to connect APIs and build event-driven automations with 1000+ pre-built apps.
Adds three-finger trackpad gestures for middle-click and middle-drag on macOS, providing the missing middle mouse button.
A high-performance C++ thread pool and parallel algorithms library for compute-bound workloads, designed as a sanitizer-clean alternative to OpenMP and TBB.
A self-hosted media tracker for movies, TV shows, anime, manga, video games, books, comics, and board games.
A deterministic, skills-based browser agent that automates web interactions using predefined action recipes for popular sites.
A fast, lightweight, and agnostic pagination gem for Ruby applications with multiple pagination techniques and frontend helpers.
An extremely fast Python linter and code formatter written in Rust, offering drop-in replacements for tools like Flake8 and Black.
A curated list of starters, examples, guides, and resources for the Neon serverless Postgres database.
Automatic version management and state recovery tool that works with any language and stores versions in git tags.