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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 desktop UI management tool for InfluxDB, providing database administration, query execution, and data exploration.
A free and open-source machine translation API that is self-hosted, offline capable, and easy to set up.
Open-source LoRa-based long-range radio link for RC vehicles, providing bidirectional serial connection and full remote control.
An open-source Git-compatible monorepo engine built in Rust for managing petabyte-scale codebases and AI agent workflows.
A Prometheus exporter for Windows hardware and sensor metrics using LibreHardwareMonitor for accurate monitoring.
A command-line tool and framework for sampling-based performance profiling of iOS apps, generating flamecharts without Xcode.
A .NET library that combines Reactive Extensions with ZeroMQ for high-performance network messaging.
Advanced Java date/time library with extensive calendar support, astronomy features, and superior internationalization.
A high-performance Java bean mapper offering elegance, robustness, and performance comparable to hand-written code.
A Python library for blazing fast fuzzy and semantic text search using vectorization and approximate nearest neighbor techniques.
A Swagger/OpenAPI toolchain for .NET, ASP.NET Core, and TypeScript that generates specifications and client code.
A library for iOS developers to adjust app constants like colors, animations, and layouts in real-time without recompiling.
An open-source implementation of Microsoft's .NET Framework for building cross-platform applications.
A Common Lisp serialization format offering rich data types, compact encoding, circular reference support, and security features.
A simple and powerful R package to create documentation websites for R packages, supporting multiple documentation frameworks.
A lightweight Python GUI toolkit for building web applications without JavaScript, web servers, or deployment hassles.
Python library for multilinear algebra operations and tensor factorizations with support for dense and sparse tensors.
A Delphi VCL control for embedding and manipulating PDF documents using the PDFium library.
An open-source macOS app for elegant window management with a customizable radial menu and keyboard shortcuts.
A libre file transfer client for macOS and Windows supporting FTP, SFTP, WebDAV, Amazon S3, Azure, OneDrive, and more.
An open-source music notation software for creating, editing, and printing sheet music with WYSIWYG design.
A cross-browser screenshot and interaction testing tool for Storybook with a visual UI runner.
A modern open-source Dependency Walker rewrite for Windows developers to troubleshoot DLL load dependencies.
A proof-of-concept P2P file transfer service for Mac-to-iOS devices with zero setup during transfers.
A fast, easy-to-use macOS application for managing MySQL and MariaDB databases.
Auto-administration package for Elixir and Phoenix Framework, inspired by ActiveAdmin, to create CRUD admin interfaces with minimal code.
An open-source, self-hosted emailing platform for sending newsletters and transactional emails with enterprise-grade features.
A macOS app that captures your screen and saves it as a layered PSD file for easy editing.
A responsive layout framework for Ember.js focused on performance and maintainability with minimal runtime overhead.
An efficient and lightweight WebAssembly interpreter designed for embedded and constrained systems.
A lightweight, fast, full-text search engine for static websites, written in Rust and compiled to WebAssembly.
A Substrate query node framework that ingests blockchain data and provides customizable GraphQL APIs for app developers.
A Jupyter notebook extension for creating Wardley Maps using a simple cell magic syntax.
A fast, configurable, extensible, and beautiful drop-in replacement for golint with custom rules and strict presets.
A JavaScript parser, mangler, and compressor toolkit for ES6+ that minifies code to reduce file size.
An open-source desktop app for creating beautiful product demos and walkthroughs with screen recording, annotations, and effects.