Chrome Developer Tools Extensions

Essential extensions for developers. Debugging tools, code editors, API testers, performance analyzers, and development workflow utilities.

16,315 extensions found

Google Chrome Web Store
  • Liner. The Real Ruler icon

    Liner. The Real Ruler

    Simple and convenient rulers for web developers. They help to create a perfect pixel web application.

    10,000 installs ★ 3.1 (75) Developer Tools
  • var_masterpiece icon

    var_masterpiece

    Turn a PHP var_dump into a readable, collapsible piece of art! JSONView for var_dump's

    10,000 installs ★ 4.1 (74) Developer Tools
  • PixiJS Devtools icon

    PixiJS Devtools

    Debug games and apps written with PixiJS

    10,000 installs ★ 4.3 (73) Developer Tools
  • Python Fiddle icon

    Python Fiddle

    A Python IDE that runs in your browser

    10,000 installs ★ 3.1 (69) Developer Tools
  • Scraper Parsers - Free Web Scraping icon

    Scraper Parsers - Free Web Scraping

    Scraper extracts data out of HTML web pages and imports it into excel, xls, xlsx, csv, json, xml files.

    10,000 installs ★ 3.0 (68) Developer Tools
  • Espruino Web IDE icon

    Espruino Web IDE

    A Terminal and Graphical code Editor for Espruino JavaScript Microcontrollers

    10,000 installs ★ 4.6 (68) Developer Tools
  • PixelParallel by htmlBurger icon

    PixelParallel by htmlBurger

    PixelParallel by htmlBurger - Pixel perfect HTML vs Design tool for developers

    10,000 installs ★ 4.7 (67) Developer Tools
  • DataLayer Checker Plus icon

    DataLayer Checker Plus

    The simplest way to debug and verify dataLayer implementations without using the browser console

    10,000 installs ★ 4.9 (65) Developer Tools
  • Pesticide - Advanced CSS Debugger icon

    Pesticide - Advanced CSS Debugger

    Not only inserts outlines (without background color) on all elements, but also inspects size and layout. CSS is awesome!

    10,000 installs ★ 4.9 (65) Developer Tools
  • JSON Formatter icon

    JSON Formatter

    Makes JSON easy to read. Open source.

    10,000 installs ★ 4.4 (65) Developer Tools
  • Pylote icon

    Pylote

    Centralise ton profil freelance avec Pylote !

    10,000 installs ★ 4.8 (64) Developer Tools
  • Maven Tools for Salesforce icon

    Maven Tools for Salesforce

    One tool to rule them all! An ever-growing collection of Salesforce developer tools.

    10,000 installs ★ 4.8 (64) Developer Tools
  • HTTP Header Spy icon

    HTTP Header Spy

    HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.

    10,000 installs ★ 3.8 (62) Developer Tools
  • Caret-T icon

    Caret-T

    Fork of Caret Editor that has full Tern integration (Intellisense for Javascript)

    10,000 installs ★ 3.7 (62) Developer Tools
  • CSS Editey icon

    CSS Editey

    CSS Editor for Google Drive

    10,000 installs ★ 3.8 (61) Developer Tools
  • Request Interceptor icon

    Request Interceptor

    Intercept Requests and add custom rules to modify request/response headers, block/redirect requests, modify query params.

    10,000 installs ★ 4.1 (60) Developer Tools
  • Corporate Ipsum icon

    Corporate Ipsum

    Generate random corporate double-speak for use as filler text

    10,000 installs ★ 4.7 (59) Developer Tools
  • Sheets to JSON icon

    Sheets to JSON

    Easily download your Google Sheets data as JSON files. Perfect for integrating with other applications or storing your data in a…

    10,000 installs ★ 3.6 (59) Developer Tools
  • Tidy Gherkin icon

    Tidy Gherkin

    Keep your Gherkin feature files consistent in layout, take the pain out of table formatting and cucumber step generation

    10,000 installs ★ 4.3 (59) Developer Tools
  • JSON Lite icon

    JSON Lite

    Fast JSON viewer - highlights, shows items count/size, handles large files

    10,000 installs ★ 4.9 (59) Developer Tools
  • Clear cache and cookies icon

    Clear cache and cookies

    Clear cache and cookies for one website with just one click. Easily manage and delete cache and cookies saving time on data removal

    10,000 installs ★ 4.4 (59) Developer Tools
  • Localhost Open Graph Checker icon

    Localhost Open Graph Checker

    Check Open Graph on internet unreachable sites like localhost or under basic auth. Temporary host site head tags on hashed url.

    10,000 installs ★ 3.7 (59) Developer Tools
  • Testing Playground icon

    Testing Playground

    Simple and complete DOM testing playground that encourage good testing practices.

    10,000 installs ★ 4.3 (58) Developer Tools
  • ExtManager icon

    ExtManager

    Manage the chrome extensions. One click to enable or disable extension. Group extensions and drag it. Sort extensions by drag it.

    10,000 installs ★ 4.0 (56) Developer Tools
  • Spectrum icon

    Spectrum

    Instantly test your web page with different types of color vision deficiency.

    10,000 installs ★ 3.8 (56) Developer Tools
  • CSV Viewer icon

    CSV Viewer

    CSV Viewer allows you to read csv and open csv files. Our csv reader instantly transforms your data into an HTML table

    10,000 installs ★ 4.8 (56) Developer Tools
  • Gloc icon

    Gloc

    Github Gloc - counts locs on GitHub pages

    10,000 installs ★ 4.3 (55) Developer Tools
  • Notifier for GitHub icon

    Notifier for GitHub

    Displays your GitHub notifications unread count

    10,000 installs ★ 4.7 (54) Developer Tools
  • Get Google Tag Manager Size icon

    Get Google Tag Manager Size

    Advanced Google Tag Manager container monitor & Performance analyzer What does this extension do? This extension provides complete…

    10,000 installs ★ 5.0 (54) Developer Tools
  • Ranorex Selocity icon

    Ranorex Selocity

    Auto-generate robust XPath, link text, RanoreXPath, and CSS selectors for use with Selenium.

    10,000 installs ★ 4.5 (53) Developer Tools
  • Casper Signer icon

    Casper Signer

    Casper Signer is the official non-custodial wallet that allows you to manage private keys and sign transactions on Casper Network

    10,000 installs ★ 3.1 (53) Developer Tools
  • Tab Rotate icon

    Tab Rotate

    Loop through a set of tabs - ideal for a Dashboard or Advertisement Display

    10,000 installs ★ 4.3 (52) Developer Tools
  • disable-HTML icon

    disable-HTML

    Provides switches to enable and disable CSS, Javascript, Images, Cookies and Popups.

    10,000 installs ★ 4.5 (52) Developer Tools
  • System Monitor icon

    System Monitor

    Monitor system status like CPU, memory, battery

    10,000 installs ★ 4.6 (52) Developer Tools
  • Ajax Modifier icon

    Ajax Modifier

    To modify ajax responses on any page

    10,000 installs ★ 4.6 (52) Developer Tools
  • SP Editor icon

    SP Editor

    Create and update SharePoint Online/SP2013/SP2016/SP2019 css/js files, inject files to web, manage web/list properties, list Webhook

    10,000 installs ★ 4.8 (51) Developer Tools
  • Nolim App icon

    Nolim App

    Расширение для Tilda Publishing от команды Nolim

    10,000 installs ★ 4.8 (51) Developer Tools
  • Clear Site Data icon

    Clear Site Data

    Clear current or all site data (cache, storage, etc).

    10,000 installs ★ 4.4 (48) Developer Tools
  • Gerador de CPF e CNPJ icon

    Gerador de CPF e CNPJ

    Gerar CPF/CNPJ para auxiliar os desenvolvedores em testes de sistemas. O usuário e responsável pela uso das informações.

    10,000 installs ★ 4.4 (48) Developer Tools
  • QR Code Maker and Decoder icon

    QR Code Maker and Decoder

    QR Code Maker. Text, URL, phone numbers, SMS and contacts are supported. You can also decode QR code from image.

    10,000 installs ★ 3.3 (48) Developer Tools
  • Black Apps Script icon

    Black Apps Script

    This extension brings new functionality to the Google Apps Script Monaco Editor

    10,000 installs ★ 4.7 (48) Developer Tools
  • KHALED BOUCHAREB-CEM icon

    KHALED BOUCHAREB-CEM

    الاضافة تقدم تحسنات و خيارات اضافة لموقع الرقمنة -كوضع ملاحطات النقاط -ادراج احصائيات

    10,000 installs ★ 4.6 (48) Developer Tools
  • WebSocket King Client icon

    WebSocket King Client

    A WebSocket client for testing and debugging connections.

    10,000 installs ★ 4.5 (47) Developer Tools
  • Debug CSS icon

    Debug CSS

    When enabled adds outline to all elements on the page, Hold Ctrl and hover to get more detail

    10,000 installs ★ 4.4 (46) Developer Tools