Alternatives to WebPagetest for all platforms with any license

  • Google Lighthouse

    Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication.

    Free Open Source Mac Windows Linux

    Google Lighthouse icon
  • Yellow Lab Tools

    Yellow Lab Tools checks a website for both it's performance and the quality of the HTML, CSS and JavaScript code. The application is available online and as...

    Free Open Source Web

    No features added Add a feature

    Yellow Lab Tools icon
  • WebO (Web Optimizer)

    This project has been launched after the Russian web conference ClientSide2007. The goal was to gather not only theoretical information about websites speeding-up, but...

    • Collects your eMail address then sends you to for the actual test - and that site is even worse for all the advertising it shows. Guest • Aug 2015 • 0 agrees and 1 disagrees Disagree   Agree

    Free Web

    No features added Add a feature

    WebO (Web Optimizer) icon
  • Yahoo! YSlow

    YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with...

    Free Open Source Mac Windows Linux Firebug Chrome ... Safari Opera Firefox

    No features added Add a feature

    Yahoo! YSlow icon
  • Calibre

    Performance monitoring that gives the page speed insights you need to improve customer experience.

    • I use Calibre to monitor every site I work on. It runs every day automatically. Guest • Aug 2017 Disagree   Agree

    Commercial Web

    No features added Add a feature

    Calibre icon

    Perform and explore an in-depth website analysis. Generate a comprehensive report to evaluate performance and usability ratings complete with improvement recommendations.

    • Discontinued No more site performance test. Website unavailable.

    Free Web

    No features added Add a feature icon


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