Best Windows Open Source Software

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

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

Reusable computer vision tools for any model

Free and open-source 3D parametric modeler

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.

Turn plain English into optimized SQL and manage all your databases in one secure, AI-powered workspace.

Open-source Spotify client for every platform

A fast, terminal‑based email client for developers

Secure, self-hosted team messaging and collaboration.

Secure, fast file transfers from the command line

Cross-platform audio and video processing solution

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

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

Bidirectional file sync for Windows, macOS and Linux

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

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

An opinionated code formatter.

Cross‑platform real‑time system monitoring for admins and DevOps

Open-source client-side encryption that locks individual files before they sync to any cloud drive.