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OPNsense

OPNsense is an open-source firewall and routing platform built on FreeBSD, offering a stateful firewall for IPv4/IPv6, multi-WAN load balancing and failover, and hardware failover via the CARP protocol. It bundles multiple VPN options (IPsec, OpenVPN, WireGuard, Tinc), an intrusion prevention system powered by Suricata, and NetFlow-based traffic reporting, all managed through a web GUI. The core platform is free under a permissive BSD/MIT license and can run on anything from a fanless mini-PC to a rack appliance, including official OVA images for virtualization. A paid Business Edition adds a Web Application Firewall, extended threat-intelligence blocklists, centralized fleet management (OPNcentral), and training/e-book resources for organizations that need vendor-backed support.

1Panel

1Panel is a modern, open-source Linux server management panel and lightweight AI management platform, positioned as an open-source alternative to cPanel and Plesk. Through a web-based GUI it handles host monitoring, file management, database management, Docker container management, website deployment, and a curated app store of 187+ one-click applications.

Plesk

Plesk is a hosting control panel and server management platform for web professionals, offering a centralized dashboard to manage multiple websites, servers, and hosting infrastructure. It provides broad security controls across the OS, network, and applications, plus WP Toolkit for WordPress installation, staging, and updates. Unlike cPanel, Plesk supports both Linux and Windows servers and works across major cloud providers including AWS, Azure, Google Cloud, and DigitalOcean. Over 100 extensions cover SSL, backups, Docker, and developer tooling, making it popular with agencies and IT admins managing mixed environments.

cPanel

cPanel is a web hosting control panel that gives server administrators and hosting providers a graphical interface for managing Linux servers without working directly in the command line. It handles account provisioning, file and email management, database administration, DNS, and security settings through both the end-user cPanel interface and the admin-level WHM (Web Host Manager) console. Used by major hosting providers and agencies worldwide, cPanel adds tools like WP Toolkit for WordPress site management, the Sitejet website builder, and an extension marketplace for backups, security, and monitoring. It is licensed per server on a subscription basis and remains one of the most widely deployed control panels in shared and VPS hosting environments.

CyberPanel

CyberPanel is a free, open-source web hosting control panel for managing servers and websites, built on top of OpenLiteSpeed, which it advertises as up to 10x faster than Apache. It supports unlimited domains, one-click Let's Encrypt SSL, automated WordPress installs with staging and LiteSpeed Cache, and a full email server stack using Postfix, Dovecot, and Rspamd for spam filtering. It also includes a Docker manager for one-click app deployment (n8n, Redis, MongoDB, and more), ModSecurity WAF and firewall management, AI-powered malware scanning, and flexible backups to local, SFTP, S3, or Google Drive. CyberPanel's core panel is free forever, with optional paid add-ons for extended Apache compatibility and premium management tools.