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Revision as of 19:52, 18 March 2013 by Asiekierka (talk | contribs)
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KolibriOS logo
KolibriOS desktop
Developed by: KolibriOS Project Team
License: GPL
Kernel type: Monolithic kernel
Working state: Active

KolibriOS is an open source operating system, for x86 computers based on MenuetOS, written entirely in Assembler/FASM.

IMPORTANT: Help KolibriOS development by working on ideas from the Google Summer of Code 2013 list!

Home FAQ
Forum Documentation
Nightly Builds Wanted Features
Bug Tracker Changelog
Source Repository Applications
File Repository Hardware Support
GSoC Information All categories

KolibriOS Features

  • Insanely fast. As an Assembler-coded operating system, it does not use anything beyond what it needs to run. Even VESA does not cause any slowdowns.
  • Bloatless. 90% of the software for Kolibri fits on a single floppy disk.
  • Compatible. It boots from anything, including NTFS drives and even from Windows itself. It supports FAT16/32, ext2/3/4 and CDFS. We are even compatible with NTFS!
  • Graphical. Despite being smaller than Linux's kernel, it manages to pack in a fully working graphics interface and a base of applications for you to use.
  • Easy to develop. KolibriOS comes with all the software you need to write software for it out of the box.
  • Lightweight. Kolibri runs on anything that has a Pentium and eight megabytes of RAM.
  • Comes with a development kit (code editor with FASM macro-assembler integrated).


  • Embedded version of KolibriOS - Kolibri-A
  • New network stack (Berkeley sockets-based) New stack