Haiku OS
A free desktop OS reviving BeOS-style speed and simplicity.
Haiku is an open-source operating system for personal computers, built as a modern continuation of ideas from BeOS. The project site provides install downloads, user guides, release notes, nightly test images, development updates, and links into its community channels.
Why it stands out
- A full independent desktop OS project, not just a Linux distribution or desktop theme.
- Carries forward BeOS-inspired design goals with a clear focus on personal computing.
- Publishes frequent development activity, contract reports, and release notes for project transparency.
- Offers nightly images for users who want to test current development work.
- Maintains visible community pathways through forums, IRC, mailing lists, and Google Summer of Code participation.
Good to know
- The current public release line is still in beta rather than a final R1 release.
- Nightly images are explicitly for testing and may be unstable.
- Some packages included with official releases may need separate installation when using nightly builds.
- The project is aimed at personal computing, not server, mobile, or enterprise deployment scenarios.
Photos

Operating-system hobbyists and BeOS fans can test a focused alternative desktop environment. Install a stable beta release and follow the official setup guide. Try nightly builds to preview recent fixes and features before releases. Track development through activity reports, ticket updates, mailing lists, and blog posts. Find community entry points for contributing code, documentation, testing, or fundraising.
Official release downloads, nightly test images, installation instructions, user guide, FAQs, release notes, project news, developer activity feeds, forums, IRC channels, mailing lists, donation links, and merchandise information.
Alternative listings
Community Linux distributions for desktops, servers, and containers.
Open Source & Free Software AlternativesopenSUSE provides free, open-source Linux operating systems in multiple editions for desktop, server, and container workloads. Its main options include stable, rolling-release, and immutable variants, with installer support for common desktop environments and advanced storage/security choices.
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Open Source & Free Software AlternativesDebian is a community-maintained operating system distribution built from Free Software. Its website provides official downloads, installer information, project news, security advisories, user support links, and ways to participate in the Debian community.
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- ReactOS — reactos.org
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