Best Chrome Extensions for Developers

1. 1
   
   ColorZilla

   Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies

   4.7 (3.9K)
   4.7(3.9K)
   4Musers
2. 2
   
   Tag Assistant

   The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.

   3.4 (1.3K)
   3.4(1.3K)
   3Musers
3. 3
   
   User-Agent Switcher for Chrome

   Spoofs & Mimics User-Agent strings.

   3.1 (2.7K)
   3.1(2.7K)
   1Musers
4. 4
   
   Lighthouse

   Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.

   4.2 (334)
   4.2(334)
   1Musers
5. 5
   
   Similarweb - Website Traffic, AI Traffic & SEO Checker

   Instant website analysis, AI traffic insights, and SEO metrics at your fingertips.

   4.6 (3.8K)
   4.6(3.8K)
   1Musers
6. 6
   
   Web Developer

   Adds a toolbar button with various web developer tools.

   4.3 (2.8K)
   4.3(2.8K)
   1Musers
7. 7
   
   Eye Dropper

   Pick colors from any website.

   3.7 (3K)
   3.7(3K)
   1Musers
8. 8
   
   SEOquake: On-Page SEO Checker

   Run SEO audits, check technical issues, analyze links and keyword density, and see Semrush metrics as you browse and search.

   3.5 (2.6K)
   3.5(2.6K)
   1Musers
9. 9
   
   Stylus

   Redesign the web with Stylus, a user styles manager. Stylus allows you to easily install themes and skins for many popular sites.

   4.5 (1.2K)
   4.5(1.2K)
   1Musers
10. 10
    
    Clear Cache

    Powerful, user-friendly browser data management, right from your toolbar.

    4.2 (1.2K)
    4.2(1.2K)
    1Musers
11. 11
    
    SEO META in 1 CLICK

    Displays all meta data and main SEO information for the best SEO

    4.9 (1.3K)
    4.9(1.3K)
    1Musers
12. 12
    
    ColorPick Eyedropper

    A zoomed eyedropper & color chooser tool that allows you to select color values from webpages and more.

    3.9 (1.2K)
    3.9(1.2K)
    900Kusers
13. 13
    
    Window Resizer

    Resize the browser window to emulate various screen resolutions.

    4.3 (2.3K)
    4.3(2.3K)
    800Kusers
14. 14
    
    Postman Interceptor

    Capture requests from any website and send them to Postman Client.

    2.7 (949)
    2.7(949)
    700Kusers
15. 15
    
    Detailed SEO Extension

    Get SEO insights at the click of a button to any website you're currently on. Built by full-time SEO's for daily analysis.

    4.8 (233)
    4.8(233)
    600Kusers
16. 16
    
    Google Analytics Debugger

    Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript.

    3.7 (535)
    3.7(535)
    600Kusers
17. 17
    
    Salesforce Inspector Reloaded

    Productivity tools for Salesforce administrators and developers to inspect data and metadata directly from the Salesforce UI.

    4.4 (251)
    4.4(251)
    600Kusers
18. 18
    
    CSS Peeper

    Inspect website styles in seconds. Supercharge your workflow, and save hours of work.

    2.6 (477)
    2.6(477)
    500Kusers
19. 19
    
    Fake Filler

    A form filler that fills all inputs on a page with fake/dummy data.

    4.3 (792)
    4.3(792)
    400Kusers
20. 20
    
    SelectorsHub

    Locators Plugin to Auto Generate and Verify Playwright Locators, XPath & CSS Selectors.

    4.4 (1.5K)
    4.4(1.5K)
    400Kusers
21. 21
    
    User-Agent Switcher and Manager

    Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want

    4.0 (275)
    4.0(275)
    400Kusers
22. 22
    
    Responsive Viewer

    Show multiple screens once, Responsive design tester

    4.0 (352)
    4.0(352)
    400Kusers
23. 23
    
    Font Finder

    An easy-to-use font inspector to get CSS styles of the selected element

    4.4 (227)
    4.4(227)
    400Kusers
24. 24
    
    Requestly: Intercept & Modify HTTP Requests

    Intercept & modify HTTP(S) traffic: redirect URLs, modify headers, inject scripts, mock REST & GraphQL APIs, and more.

    4.7 (1.8K)
    4.7(1.8K)
    300Kusers
25. 25
    
    BuiltWith Technology Profiler

    Find out what the website you are visiting is built with using this extension.

    3.6 (414)
    3.6(414)
    300Kusers

Ranked by user count among the top extensions in the Chrome Web Store's Developers listings. Numbers come straight from the store and refresh every week.