reactos
A free Windows-compatible Operating System
- operating-system
- c
- kernel
- os
- osdev
- x86
- windows
- win32
- win32api
- drivers
- gpl
- reactos
- hacktoberfest
- Stars
- 18,324
- Forks
- 2,285
- + today
- +1
- Created
- 9y
Ranking data as of October 30, 2026 (UTC).
Star History
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Overview
A free Windows-compatible Operating System It ranks #3524 on GitTiger, gaining +1 star on October 30, 2026 (UTC).
The project is written in C and has 2,285 forks. It was created 9y ago.
Installation
git clone https://github.com/reactos/reactos.git
cd reactos
# see README for setup