A Plesk alternative, simpler to run.
KLYRN runs on Ubuntu 24.04 with nginx and is priced by the server. The installer checks its own work, and every backup is read back before it counts.
Priced by the server.
Plesk separates its editions by domain count. Web Admin has 10, Web Pro has 30 and Web Host is unlimited. 1 KLYRN's paid editions do not count domains, sites or accounts. Pro is $9 a month per server, and Free covers one server and five sites.
Ubuntu and nginx only.
Plesk runs Apache with an nginx reverse proxy on Linux, and IIS on Windows. 2 KLYRN runs nginx on Ubuntu 24.04 and nothing else. It tunes nginx, PHP-FPM and MariaDB from the server's hardware and shows the rule behind each value.
Move in over SSH.
KLYRN connects to the old server over SSH and copies the sites across. You preview each one on the new server before DNS moves.
Where Plesk still fits.
- Plesk runs on Windows Server with IIS. 2 KLYRN never will.
- Plesk supports Debian, AlmaLinux, RHEL and other Linux systems. 2
- KLYRN runs on Ubuntu 24.04 only. Debian 12 and 13 are planned.
- KLYRN is a young product. Known issues
Sources
Read on 6 September 2026. Plesk's prices are left out, because its pricing page carried a promotion and a price change whose dates had both passed.
- plesk.com/pricing: the Web Admin, Web Pro and Web Host editions and their domain counts. Prices deliberately not quoted; see the note above.
- docs.plesk.com: system requirements and web servers (supported operating systems; Apache with nginx in front on Linux, IIS on Windows).
Plesk is a trademark of its owner. KLYRN is not affiliated with, endorsed by or a partner of it.
Business and Enterprise are coming.
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