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The top 25 most used Chrome extension in Developer Tools category

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#1 GoFullPage - Full Page Screen Capture

https://gofullpage.com

Capture a screenshot of your current page in entirety and reliably—without requesting any extra permissions!

9,000,000+

4.89 (78,939)

#2 ColorZilla

https://colorzilla.com

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

4,000,000+

4.59 (3,874)

#3 JSON Formatter

https://callumlocke.com

Makes JSON easy to read. Open source.

2,000,000+

4.58 (1,883)

#4 User-Agent Switcher for Chrome

Chrome Enterprise Team

Spoofs & Mimics User-Agent strings.

1,000,000+

3.86 (2,641)

#5 Lighthouse

https://developers.google.com/web

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

1,000,000+

4.44 (319)

#6 Similarweb - Website Traffic & SEO Checker

https://www.similarweb.com

Instant website analysis and SEO metrics at your fingertips.

1,000,000+

4.65 (3,384)

#7 SEOquake

https://www.seoquake.com

SEOquake is a free plugin that provides you with key SEO metrics, along with other useful tools such as SEO Audit and many others

1,000,000+

4.54 (2,556)

#8 Clear Cache

https://clearcache.io

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

1,000,000+

4.46 (1,137)

#9 SEO META in 1 CLICK

https://www.seo-extension.com

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

800,000+

4.86 (1,140)

#10 ModHeader - Modify HTTP headers

https://modheader.com

Modify HTTP request headers, response headers, and redirect URLs

800,000+

3.15 (1,063)

#11 Postman Interceptor

https://postman.com

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

800,000+

4.29 (956)

#12 Stylus

stylus.openstyles

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

700,000+

4.52 (1,132)

#13 Selenium IDE

https://seleniumhq.org

Selenium Record and Playback tool for ease of getting acquainted with Selenium WebDriver.

600,000+

3.45 (288)

#14 CSS Peeper

https://csspeeper.com

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

500,000+

4.46 (392)

#15 Color Picker for Chrome™

https://autocolorpicker.com

HEX, RGB Color picker, Advanched Eyedropper, Find color code on any page

400,000+

3.98 (133)

#16 WhatRuns

https://www.whatruns.com

Discover what runs a website. Frameworks, Analytics Tools, Wordpress Plugins, Fonts - you name it.

400,000+

3.82 (421)

#17 Detailed SEO Extension

https://detailed.com

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.

400,000+

4.95 (199)

#18 Fake Filler

https://fakefiller.com

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

400,000+

4.43 (758)

#19 BuiltWith Technology Profiler

https://builtwith.com

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

300,000+

4.35 (407)

#20 Responsive Viewer

https://responsiveviewer.org

Show multiple screens once, Responsive design tester

300,000+

4.25 (310)

#21 JSON Viewer Pro

https://addonise.com

A completely free extension to visualise JSON response in awesome Tree and Chart view with great user experience and options. It…

300,000+

4.64 (154)

#22 Salesforce Inspector Reloaded

Thomas Prouvot

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

200,000+

4.87 (188)

#23 Requestly - Free API Testing & Mocking Tool

https://requestly.com

Open-Source API Client & HTTP Interceptor. API Collections, Environments, JS Redirects, API Mocks, Modify Headers and Insert Scripts

200,000+

4.32 (1,233)

#24 OCR - Image Reader

brian.girko

A powerful optical character recognition (OCR) extension to capture and convert images to text

200,000+

4.08 (218)

#25 Color Tab

https://colorhunt.co

A beautiful color palette with every new tab!

200,000+

4.25 (1,395)