Best Windows Open Source Software

Free, open-source SQL client for managing MySQL, MariaDB, PostgreSQL, SQL Server, and more.

An opinionated code formatter.

Privacy-first, cross-platform text expander for snippets and templates

A lightning-fast, GPU-accelerated code editor built in Rust with native LSP support.

Free research manager to collect, organize, cite, and share sources.

A user-friendly HTTP client for testing and exploring APIs, available as CLI, Desktop, and web app.

A lightweight, non‑Chromium browser built for stability and control

Free and open-source 3D parametric modeler

Clean and organized e-book reading experience

A desktop email client that turns your inbox into a kanban board

A fast, terminal‑based email client for developers

Simple videogames programming library

Free and open-source video transcoder

High-performance web server and reverse proxy

Professional-grade painting software for digital artists

General purpose TLS and crypto library

Free, open‑source crypto trading bot for automated strategies

A flexible, open-source level editor for 2D games

A free, open-source quick launcher and search bar for Windows, triggered with a hotkey.

An open-source AI pair programmer for your terminal, compatible with Claude, GPT, and local LLMs.

Open-source client-server backup software with image and file-level restores

Run agents in parallel, schedule repeat work, preview apps in the built-in browser, and manage prompts, skills, and MCP tools from one place.

Advanced offline password cracker supporting hundreds of hash types

Genealogical research and family tree management