The Best 17 Google Lighthouse Alternatives

  • Fiddler icon

    Fiddler

    Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data.

    Free Windows

  • PageSpeed Insights icon

    PageSpeed Insights

    pagespeed is addon for firebug (debugger addon for mozilla firefox ) for analyzing of page loading process and suggesting to webmaster how speed up page loading. javascript obfuscating, image resizing, css merging and vise versa.

    Free Open Source Mac OS X Windows Linux Chrome Firefox Firebug

  • Gtmetrix icon

    Gtmetrix

    GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable...

    Free Web

  • WebPagetest icon

    WebPagetest

    Run a free website speed test from multiple locations around the globe using real browsers (Firefox, IE, Chrome, Android and iOS) and at real consumer connection speeds....

    Free Open Source Web

  • Yahoo! YSlow 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 the Firebug web development tool.

    Free Open Source Mac OS X Windows Linux Chrome Firefox Safari Opera Firebug

  • Site monitoring icon

    Site monitoring

    Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider.

    Free Open Source Mac OS X Windows Linux

  • Yellow Lab Tools 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

  • StatusCake Tools icon

    StatusCake Tools

    StatusCake Tools allows you to check the speed and load time of your website. Simply enter the website URL and check one of the locations from around the world you want...

    Free Mac OS X Windows Web

  • Calibre icon

    Calibre

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

    Commercial Web

  • WebO (Web Optimizer) 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...

    Free Web

  • Site Relic icon

    Site Relic

    Site Relic is a FREE toolbox where you can test your website for performance & security in seconds without user registration.

    Freemium Web

  • Checkbot icon

    Checkbot

    Boost your SEO, speed and security: Checkbot for Chrome crawls your site to test you’re following over 50+ best practices. Test 1,000s of pages in minutes for broken...

    Freemium Mac OS X Windows Linux Chrome OS Chrome

    Google Chrome extension SEO Audit
  • neXpert icon

    neXpert

    neXpert is an add-on to Fiddler Web Debugger which aids in performance testing web applications. neXpert was created to reduce the time it takes to look for performance...

    Free Windows