OpenLiteSpeed combines speed, security, scalability, optimization and simplicity in one friendly open-source package.
Download OpenLiteSpeed today, and see what it can do for your sites!
Event driven processes, less overhead, and enormous scalability. Keep your existing hardware.
OpenLiteSpeed is mod_rewrite compatible, with no new syntax to learn. Continue to use your existing rewrite rules.
OLS comes with a built-in WebAdmin GUI. Control panel support is available with CyberPanel.
Features Anti-DDoS connection and bandwidth throttling, ModSecurity v3 integration, and more.
Built-in full-page cache module is highly-customizable and efficient for an exceptional user experience.
Export data from LiteSpeed servers for use with Prometheus, Grafana, and similar analytics apps.
Native SAPI for PHP allows external applications written in PHP to run up to 50% faster.
Install OpenLiteSpeed, MariaDB and WordPress on various operating systems with just one click.
Experience a measurable performance boost with OpenLiteSpeed and LSCache for WordPress.
See the maximized WordPress performance you can get from your current hardware, just by switching to OpenLiteSpeed!
We compare OpenLiteSpeed against other web servers in a series of benchmarks designed to measure server response time, communication time with PHP, WordPress acceleration, and more.

OpenLiteSpeed, the Open Source edition of LiteSpeed Web Server Enterprise, is free to download, use, distribute, and modify under GPLv3. (To use OpenLiteSpeed in a proprietary product, contact us about obtaining an OEM license.
OpenLiteSpeed represents our commitment to support the Open Source community. The same team responsible for LiteSpeed Enterprise maintains and develops OpenLiteSpeed, and both servers are held to the same high-quality coding standard.
Whether you use our one-click options, or take advantage of CyberPanel support, installation of OpenLiteSpeed is easy.
Follow one of these links to learn how.
Your Video Guide to OpenLiteSpeed Installation and Configuration
We’ve prebuilt a collection of images for popular cloud platforms, allowing you to easily launch an instance in three minutes or less!




OpenLiteSpeed is compatible with some of the most popular control panels, check it out!
Tips and Tutorials for Using OpenLiteSpeed
A Complete Sysadmin Package for OpenLiteSpeed
Trustpilot Testimonials
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