ReactOS
@reactos • Open source projects from reactos. Use this route to separate flagship concentration from portfolio breadth before you treat a publisher as broadly strong.
Portfolio concentration
46%
Top three share
Shows whether the organization is driven by one breakout repo or several visible projects.
Breadth
30 repos
Visible snapshot
5 repositories updated in the last 90 days.
Leading language
Unknown
Portfolio mix
Unknown (5), C (5), C# (4)
Average size
17
Stars per repository
Useful for distinguishing one flagship-heavy publisher from a repeatable portfolio.
Updated: 2026-08-27(15d ago)GitHub API fallback30 repositories
46%
of the visible star count comes from this organization's top three repositories.
17
stars per repository in this same snapshot.
Unknown
is the most common language here, with 5 repositories updated in the last 90 days.
Why this rank
This organization stands out because its public portfolio is relatively balanced across 30 repositories.
Balanced portfolio across 30 reposTop 3 share 46%
Organization pages work best when you separate portfolio breadth from flagship concentration. In ReactOS's case, the visible top three repositories account for about 46% of total stars in this snapshot, which helps explain whether the organization is known for one breakout project or for a broader repeatable portfolio.
The dominant language mix here is Unknown (5), C (5), C# (4). That makes this page useful not just for popularity checks, but also for seeing what technical shape an organization's public ecosystem actually has.
Top Repositories
| # | Repository | Language | Stars |
|---|---|---|---|
| 1 | reactos/rapps-db Database for the ReactOS Application Manager (rapps) | 118 | |
| 2 | reactos/RosBE ReactOS Build Environment for various platforms | C | 63 |
| 3 | reactos/web-content ReactOS Website powered by the Hugo Static Site Generator | HTML | 45 |
| 4 | reactos/reactosdbg Graphical Debugging Shell for ReactOS Kernel Debugger (KDBG) | C# | 35 |
| 5 | reactos/Qemu_GUI GUI for QEMU | C# | 26 |
| 6 | reactos/web PHP subsystems of the ReactOS Website | PHP | 18 |
| 7 | reactos/wine Wine / Wine-Staging fork of the ReactOS Project (master is mirror of git://source.winehq.org/git/wine.git) | C | 16 |
| 8 | reactos/wallpapers This repository contains wallpapers for use in rapps | CMake | 15 |
| 9 | reactos/developer-web-interface Web Interface for ReactOS CI services | JavaScript | 15 |
| 10 | reactos/syzkaller-ros "Porting Syzkaller to ReactOS" GSoC 2020 Project by @freakston | Go | 14 |
| 11 | reactos/syzkaller syzkaller is an unsupervised coverage-guided kernel fuzzer | Go | 13 |
| 12 | reactos/Release_Engineering Resources for engineering ReactOS Releases | Shell | 12 |
| 13 | reactos/sysreg2 Controls and monitors ReactOS VMs for Regression Testing on Unix-based platforms | C | 10 |
| 14 | reactos/bochspwn-reloaded "Detect kernel information disclosure by bochspwn-reloaded" GSoC 2020 project by @khanhnt2 | C++ | 9 |
| 15 | reactos/rosev_ircsystem A multiplatform IRC Server written from scratch for closed user groups. Used inhouse for ReactOS Deutschland e.V. General Assemblies. | C++ | 9 |
| 16 | reactos/RosTE ReactOS Testing Environment | C# | 9 |
| 17 | reactos/packmgr Former ReactOS Package Manager - replaced by ReactOS Application Manager (rapps) | C++ | 8 |
| 18 | reactos/ninja a small build system with a focus on speed | 7 | |
| 19 | reactos/mattermost-extensions Mattermost extensions for the ReactOS Mattermost Server at https://chat.reactos.org | PHP | 7 |
| 20 | reactos/press-media Official ReactOS Press Media | Rich Text Format | 7 |
| 21 | reactos/monitoring Monitoring plugins used in the ReactOS Infrastructure | C | 7 |
| 22 | reactos/CMake Patched versions of CMake for ReactOS needs | C | 6 |
| 23 | reactos/vmwaregateway Modified version of Volkmar Uhlig's vmwaregateway tool | C++ | 6 |
| 24 | reactos/web-playground-config Configuration for the Website Playground, check https://web-content.reactos.org | Python | 5 |
| 25 | reactos/project-tools-archive Remaining files from the former "project-tools" SVN repository. Left only for reference, development is continued in the individual repositories. | Batchfile | 4 |
| 26 | reactos/sysreg3 Controls and monitors ReactOS VMs for Regression Testing on Windows platforms. No longer maintained, use sysreg2 instead. | C# | 4 |
| 27 | reactos/rosev_jameicaplugin Plugin integrating into Jameica and JVerein for managing ReactOS donations | Java | 4 |
| 28 | reactos/wpa_supplicant-reactos wpa_supplicant for Windows modified for ReactOS | 2 | |
| 29 | reactos/rosget-pkgs | 1 | |
| 30 | reactos/downloads Optional downloads | 0 |
Next step after the organization read
Open a flagship repository, compare a couple of portfolio leaders, or return to the organization map when you want a broader concentration read.
Learn and methodology
Keep trust-building context reachable, but behind the first data read instead of ahead of it.
How to read this organization snapshot
Total stars are useful as a discovery signal, but they do not tell you whether a team maintains every repository equally. Pair this page with release cadence, maintainer activity, and the flagship concentration shown above before making adoption decisions.
For broader background on GitStar's ranking logic and editorial guidance, see Methodology & Editorial Standards.