Best Windows Open Source Software

Secure code by finding and fixing open-source, container and IaC vulnerabilities.

Widely used open-source penetration testing framework for finding and exploiting vulnerabilities.

Reusable computer vision tools for any model

Keyboard‑focused, minimal web browser for power users

Fast, open‑source snippet manager for developers across Windows, Mac, and Linux

No-logs VPN from a 15-year operator that publishes transparency reports and annual security audits.

Open-source Spotify client for every platform

Secure, self-hosted team messaging and collaboration.

Free, open-source web-based tool for managing PostgreSQL databases.

Free, open-source download manager built for automating downloads from file hosts.

Free, open-source download manager with video-grabbing browser integration and a built-in converter.

High-performance open-source time-series database for IoT and big data

Bidirectional file sync for Windows, macOS and Linux

Free open-source disk encryption with strong security, successor to TrueCrypt.

Capture, upload, and share your screen with ease

The free and reliable cross-platform FTP, SFTP, and FTPS solution.

A command-line installer that gets developer tools onto Windows with minimal friction.

An open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

Free, open-source office suite for documents, spreadsheets, and presentations

Open-source tool for building multiboot USB drives from ISO files

A note-taking app with a focus on security and simplicity

Free, cross‑platform virtualization to run multiple OSes on a single computer.

Free, open‑source DJ software with professional‑grade features

Simple and easy-to-use Python logging library