Developer Tools

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GoFullPage - Full Page Screen Capture

4.9(76.5K)

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

ColorZilla

4.6(3.8K)

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

JSON Formatter

4.6(1.9K)

Makes JSON easy to read. Open source.

User-Agent Switcher for Chrome

3.9(2.6K)

Spoofs & Mimics User-Agent strings.

Lighthouse

4.4(318)

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

Similarweb - Website Traffic & SEO Checker

4.6(3.2K)

Instant website analysis and SEO metrics at your fingertips.

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

Clear Cache

4.5(1.1K)

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

Selenium IDE

3.5(285)

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

Postman Interceptor

4.3(956)

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

ModHeader - Modify HTTP headers

3.1(1.1K)

Modify HTTP request headers, response headers, and redirect URLs

Stylus

4.5(1.1K)

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(357)

Extract CSS and build beautiful styleguides.

daily.dev | The homepage developers deserve

4.8(2.4K)

Get one personalized feed for all the knowledge you need as a developer.

WhatRuns

3.8(398)

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

Color Picker for Chrome™

4.0(112)

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

BuiltWith Technology Profiler

4.4(405)

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

SelectorsHub - XPath Helper

4.8(1.4K)

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

Fake Filler

4.4(748)

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

Detailed SEO Extension

5.0(189)

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(292)

Show multiple screens once, Responsive design tester

Grepper

4.4(402)

The Query & Answer System for the Coder Community

JSON Viewer Pro

4.7(133)

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

Color Tab

4.2(1.4K)

A beautiful color palette with every new tab!

META SEO inspector

4.4(590)

This extension is primarily aimed at web developers who need to verify the HTML of their sites to ensure compliance with Google's…

OCR - Image Reader

4.0(196)

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

VisBug

4.8(252)

Open source browser design tools

User Agent Switcher

4.1(1K)

Simplest way to switch between user-agents in your browser!

QR Code (Generator and Reader)

3.9(161)

Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.

Web Vitals

4.2(42)

Measure metrics for a healthy site

APK Downloader

2.8(67)

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

Requestly - Intercept, Modify & Mock HTTP Requests

4.3(1.2K)

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

Google apps