Welcome to Speedar 2.0 Speedar allows any web browser to calculate its Internet connection speed. It downloads a large web page while noting the time before the download starts and again after it completes. The time difference is used calculate the average data transfer rate. Try it now, clock your connection speed. Speedar for End Users If all you want to do is test your Internet connection speed, then bookmark this page and return whenever you wish. There is no software to buy or download. As long as your web browser has Javascript enabled, you can determine your connection speed! Speedar is platform agnostic and works equally well with Windows, MacOS, Linux, etc...basically any system with a Javascript-enabled web browser! Speedar on Your Website Developers and website owners can use Speedar on their own websites, BSD license. The only client-side requirements for Speedar is a web-browser with Javascript support and the only server-side requirements is PHP.