Skip to content
Serenity Operating System
Branch: master
Clone or download
awesomekling GTextEditor: Improve cursor positioning accuracy when using a mouse.
Put the cursor on the left or right side of a glyph when clicking it based
on distance to middle of glyphs. This is such an obvious change that makes
a small but noticeable difference in feel. :^)
Latest commit 737315c Apr 25, 2019
Type Name Latest commit message Commit time
Failed to load latest commit information.
AK Do a pass of compiler warning fixes. Apr 23, 2019
Applications GTextEditor: Turn off the ruler by default. Apr 24, 2019
Base Snake: Add a window icon. :^) Apr 20, 2019
Games Snake+Minesweeper: Exit process when game window is closed. Apr 21, 2019
Kernel Allow passing extra args to qemu via a SERENITY_EXTRA_QEMU_ARGS env var. Apr 24, 2019
LibC Put assertions behind a DEBUG flag to make it easy to build without t… Apr 23, 2019
LibGUI GTextEditor: Improve cursor positioning accuracy when using a mouse. Apr 25, 2019
LibM Put assertions behind a DEBUG flag to make it easy to build without t… Apr 23, 2019
Meta Meta: Remove convert-raw-to-rgb thingy since we have PNG support nowa… Apr 20, 2019
Servers WindowServer+TaskBar: Add a taskbar window button popup menu. Apr 23, 2019
SharedGraphics SharedGraphics: Add is_right_text_alignment(TextAlignment) helper. Apr 24, 2019
.gitignore Move over to building all of userspace with i686-pc-serenity-g++. Feb 22, 2019
LICENSE Let's go with a 2-clause BSD license. Apr 15, 2019
Makefile.common Build: Let's skip the --gc-sections linker option for now. Apr 23, 2019 Meta: Oops, screwed up one of the links. Apr 15, 2019


Graphical Unix-like operating system for x86 computers.


I always wondered what it would be like to write my own operating system, but I never took it seriously. Until now.

I've grown tired of cutesy and condescending software that doesn't take itself or the user seriously. This is my effort to bring back the feeling of computing I once knew.

Roughly speaking, the goal here is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by me, for me, based on the things I like.

I regularly post raw development videos on my YouTube channel.

There's also a Patreon if you would like to show some support that way.


Screenshot as of ef9fbef

Current features

  • Pre-emptive multitasking
  • Multithreading
  • Compositing window server
  • IPv4 networking with ARP, TCP, UDP and ICMP
  • ext2 filesystem
  • Unix-like libc and userland
  • mmap()
  • /proc filesystem
  • Local sockets
  • Pseudoterminals
  • Event loop library (LibCore)
  • High-level GUI library (LibGUI)
  • PNG format support
  • Text editor
  • IRC client
  • DNS lookup
  • Minesweeper
  • Other stuff I can't think of right now...

How do I build and run this?

See the step-by-step guide to building Serenity



Serenity is licensed under a 2-clause BSD license.

You can’t perform that action at this time.