Best Windows Free Open-Source Open Source Software

Private, end-to-end encrypted messaging.

Free, open-source image editor.

The advanced open-source relational database.

General purpose TLS and crypto library

Cross-platform automation framework for all kinds of apps

Self‑hosted, Subsonic‑compatible music streaming server for audiophiles

A full-featured download manager

Open source home automation with local control and privacy

Cross-platform password manager compatible with Keepass 2.x

An open platform for various uses

Empowering everyone to build reliable and efficient software

Open source classroom client

High-performance web server and reverse proxy

Sync and manage files across cloud storage from the command line

Open-source antivirus engine for detecting malware across platforms

Extremely fast Python linter and code formatter

A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM

A simple terminal UI for git commands

Download courses, videos, music and books from 1,800+ sites

Lightweight API exploration and testing IDE

Reusable computer vision tools for any model

Vocal remover using Deep Neural Networks

Multi-platform 2D and 3D game engine

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