Browse free open source System software and projects for Windows and Mac below. Use the toggles on the left to filter open source System software by OS, license, language, programming language, and project status.
A cross-platform library that gives apps easy access to USB devices
Desktop search application
V2Ray is a set of tools for building your own private network
Arduino IDE library
The classic email sending library for PHP
32/64 bit multi-platform Ethernet S7 PLC communication suite
Command-line shell and scripting language built on .NET
Arduino core for the ESP32
Alternative firmware for ESP8266 with easy configuration
Fast, scalable, multi-language and extensible build system
ready-to-use RTSP / RTMP / LL-HLS / WebRTC server and proxy
Payload launcher and serial number checker for Nintendo Switch
Market leading real time kernel for 40+ microcontroller architectures
Open source, cross-platform, user-mode tablet driver
Real-Time Event Frameworks based on active objects & state machines
Affordable WiFi hacking platform for testing and learning
Distributed tracing system to gather timing data
MAME is a multi-purpose emulation framework
ESP8266 core for Arduino