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reactos / reactos
A free Windows-compatible Operating System
SerenityOS / serenity
The Serenity Operating System 🐞
Popularity
Repository stars18,45733,945Highest
Fork2,3383,491Highest
Maintenance
Last push2026-11-072026-11-06
Maintenance notesNot verifiedNot verified
Repository created2017-10-032018-12-02
License & use
LicenseGPL-2.0 · Share derivative sourceBSD-2-Clause · Permissive
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeDeveloper tools · Deployment & operationsDeveloper tools · Deployment & operations
TypeApps & systemsApps & systems
SubcategoryOperating systems & kernelsOperating systems & kernels
PlatformNot verifiedNot verified
First collected2026-11-032026-11-03
LanguageCC++
License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Measured at 2026-11-07 UTC