Chrome Web Store - Developer Tools

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GoFullPage - Full Page Screen Capture

4.9(74K)

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

ColorZilla

4.5(3.4K)

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

JSON Formatter

4.6(1.8K)

Makes JSON easy to read. Open source.

User-Agent Switcher for Chrome

3.9(2.6K)

Spoofs & Mimics User-Agent strings.

Proxy SwitchyOmega

4.6(3.8K)

Manage and switch between multiple proxies quickly & easily.

Redux DevTools

4.6(704)

Redux DevTools for debugging application's state changes.

Lighthouse

4.4(303)

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

Similarweb - Traffic Rank & Website Analysis

4.6(2.9K)

Instant website analysis, including site rank, site traffic, sources and geography.

SEOquake

4.6(2.5K)

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

Tag Assistant Companion

2.8(138)

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

Clear Cache

4.5(1.1K)

Clear your cache and browsing data with a single click of a button.

Selenium IDE

3.4(266)

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

ModHeader - Modify HTTP headers

3.2(1K)

Modify HTTP request headers, response headers, and redirect URLs

Stylus

4.5(1K)

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

CSS Peeper

4.6(348)

Extract CSS and build beautiful styleguides.

WhatRuns

3.8(390)

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

JSON Viewer Pro

4.7(120)

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

BuiltWith Technology Profiler

4.4(403)

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

Color Picker for Chrome™

4.0(103)

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

Fake Filler

4.4(734)

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

Grepper

4.4(394)

The Query & Answer System for the Coder Community

SelectorsHub

4.9(1.4K)

xPath plugin to auto generate, write and verify xpath & cssSelector.

Detailed SEO Extension

5.0(154)

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.

Responsive Viewer

4.3(261)

Show multiple screens once, Responsive design tester

Requestly - Intercept, Modify & Mock HTTP Requests

4.4(1.1K)

The easiest way to Redirect URLs, Modify HTTP Headers, Mock APIs, Inject custom JS, Modify GraphQL Requests

VisBug

4.8(233)

Open source browser design tools

Web Vitals

4.1(40)

Measure metrics for a healthy site

User JavaScript and CSS

4.8(485)

User JavaScript and CSS on any website

Website SEO Checker: Free Audit & Analysis

4.4(80)

Get free on-page SEO report with the best website SEO checker. Use SEO analysis to do audit for the most valuable pages at first.

NoFollow

4.3(228)

Outline nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles.

GitZip for github

4.2(164)

It can make the sub-directories and files of github repository as zip and download it

APK Downloader

3.2(32)

Free and safe download Android apps & games from Google Play Store.

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