Open source
Website code is available to inspect and reuse. OS source and license notices must be prepared separately.
Free to explore • Open source • Experimental ISO online
Your computer.
Your freedom.
FeatherOS is an open-source operating system project focused on flexibility and the freedom to explore. Explore the experimental installer, inspect the website code, and follow development of the FeatherOS desktop.
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BUILT TO EXPLORE
FeatherOS
FeatherOS
The philosophy
Light in spirit.
Open by design.
FeatherOS is an independent OS project. An experimental BIOS installer is available for AMD64. Other architecture images are planned, not released. FreeBSD desktop integration, UEFI and real USB installation still need testing.
Flexible
Multiple architecture builds are a project goal, not a one-image-fits-every-device promise.
Free downloads
No purchase required for public release images.
Releases
Find your build.
The AMD64 ISO is available as an experimental download, not a verified desktop release. Read the limitations before installing.
⚠️ Release images may erase drives during installation. Back up important files and test in a virtual machine first.
Getting started
From ISO to first test.
Choose the right image
Match the architecture to your hardware and check the release notes.
Verify the checksum
Use the published SHA-256 checksum to confirm the file downloaded correctly.
Write the image
USB compatibility has not been verified for this experimental ISO. Testing in a VM is recommended first.
Boot and test
This experimental image first installs FreeBSD. Installing the FeatherOS desktop requires a separate manual setup stage.
For builders
Read it. Learn it.
Improve it.
FeatherOS is intended to be open source. The complete source code for this independent static website is downloadable below. This is separate from FeatherOS operating-system source code.