Founded in 1994 and headquartered in Geneva, Switzerland, Infomaniak is one of Switzerland's largest web hosting providers with 100% renewable data centers. It offers hosting, VPS, public cloud, email and kDrive (free 15 GB) with a focus on green energy and data residency.
InfinityFree is a free PHP hosting provider operated from the United States, offering unlimited disk and bandwidth (fair use), 100,000 inodes, free Let's Encrypt SSL and MySQL/phpMyAdmin. With no forced ads, it suits personal test sites, static sites and prototypes.
Usermin is the open-source end-user interface from the Webmin team, served on port 20000, managing email, files, and passwords without IMAP/POP3, with low resource usage for lightweight self-service panels.
Kloxo is a free, open-source (AGPL v3) hosting control panel, formerly Lxadmin, installing on RHEL 8/9-family systems with about 130 one-click apps and switchable Apache/lighttpd and BIND/djbdns stacks, suited to budget virtual hosting.
InterWorx is a US-developed commercial server control panel offering the NodeWorx admin and SiteWorx user interfaces, with PHP 5.6 to 8.2 support, Nginx/Apache dual engines and free Let's Encrypt SSL. Lightweight and high-performance, it suits cost-conscious small hosters.
i-MSCP is a free, open-source hosting control panel led by French developers, letting one panel manage web, mail, DNS and database servers with PHP 5.6 to 8.x support. With no license fees, it suits budget-conscious small hosters and self-hosted environments.
BlueOnyx is an Italian open-source server management panel that is free with no license fees, running on AlmaLinux/RHEL with built-in email, DNS, virtual hosting, and API.
Virtualmin is an open-source virtual hosting control panel built on Webmin, created by Jamie Cameron in 2005, managing 1M+ domains with a fully featured free GPL edition and Professional from $7.50/month, an open-source alternative to cPanel.
ISPConfig is an open-source Linux hosting control panel created in 2005 by German developers Till Brehm and others, released free under the BSD license. It offers multi-server management with web, DNS, mail, and database administration in one console, a cost-effective open alternative to cPanel and Plesk.
DirectAdmin is a lightweight commercial hosting control panel launched by US-based JBMC Software in 2003, running on 512MB RAM with unlimited-domain licensing from $29/month, the most cost-effective cPanel alternative.
ZPanel is a UK-origin open-source virtual hosting control panel that once delivered integrated hosting management on Windows and Linux, but the project is now discontinued and suitable only for study and legacy environments.