Keeping the sky smooth.

SigeonOS is a small, lightweight desktop built for fun.

screenshot-1.png
SigeonOS desktop

What's in the box

A short list, on purpose.

Windowing

Plain windows with a consistent title bar across every app.

Terminal

A fast shell is one click away from any desktop.

File manager - Finder

Manage and sort your files.

Networking

Wi-Fi and HTTP work out of the box, no extra setup.

Notes & clock

Small utilities included by default, nothing bundled you'd need to remove.

Low footprint

Runs comfortably on modest and even older hardware, with modern styling.

Download

Pick the image that matches your machine.

SigeonOS 08-Beta Released 2026-09-13
Architecture File Size SHA-256
x86-64 sigeonos-x86-breadcrumb-09-Beta.iso ~82 MB 7d71ba685bb78ea1fbd7ef022f79c5eecdac5acea689486867304fb0503c4729 Download (Google Drive)

Verify your download with sha256 and compare it against the value above.

About SigeonOS

SigeonOS pretty much started as an imaginary operating system until I (SigeonOSDeveloper) got inspired and decided to develop the first, built from scratch, operating system of SigeonOS.

Ever since then, I've gotten love from the community and decided to continue on SigeonOS, began from a Linux kernel, to SigeonOS: Classic, till now the current version of SigeonOS, SigeonOS: Breadcrumb Release.

The project is being developed to be open source and in the open. Issues, patches, and questions are all welcome.

Latest version
09-Beta
Kernel
Sigeon GC
Minimum RAM
~512 MB
License
Sigeon General Licence Agreement
Source
Not out yet