React Developer Tools
SportsInspect React component trees, props and state.
Developer extensions extend DevTools with framework inspection, API clients and accessibility checks.
Inspect React component trees, props and state.
Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed.
Identifies the technology stack behind any website.
The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Take FULL webpage screenshots. Capture, edit and save them to PDF/JPEG/GIF/PNG, upload, print, send to OneNote, clipboard or email.
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Makes raw JSON responses readable in the browser.
Create recovery media for your Chromebook.
Instant website analysis, AI traffic insights, and SEO metrics at your fingertips.
DevTools browser extension for Vue.js
Adds a toolbar button with various web developer tools.
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Spoofs & Mimics User-Agent strings.
Redux DevTools for debugging application's state changes.
Point-and-click scraper that exports site data to CSV.
HEX, RGB Color picker, Advanched Eyedropper, Find color code on any page
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript.
An easy-to-use font inspector to get CSS styles of the selected element
Save all resources files with retaining folder structure.
Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want
From auto-fill forms, doing a repetitive task, taking a screenshot, to scraping data of the website, it's up to you what you want…
Task and UI test automation with Computer Vision/OCR. Ui.Vision combines browser automation and desktop automation.
Your Single Source of Truth (SSOT) for debugging analytics implementations
Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.
A tool to help you build, troubleshoot and test your Pinterest Tags.
A collection of tools to help you design and develop websites with precision.
Rewrites the browser's geolocation coordinates (latitude and longitude) to custom values.
Accessibility Insights for Web helps developers quickly find and fix accessibility issues.
Cookie Remover: clear & remove cookies, clear local storage, and delete site data for the current tab in one click.
PPSPY provides store analytics, shopify store sales tracker, shopify dropshipping, shopify theme & app detector and more.
Productivity tools for ServiceNow, offered by SN Utils B.V. Not affiliated with ServiceNow, Inc.
Manage, search, and export your Discord messages with ease.
Download CRX Files directly as crx or zip file depending upon your choice
Build bots with no-code, code them, or describe them to Claude. Axiom runs on our cloud or your machine.
Manage and switch between multiple proxies quickly & easily.
change location for google search
To check the color contrast between foreground and background of the texts
A simple helper to identify font details from any website
Debug Adobe Experience Platform and Adobe Experience Cloud products using the Adobe Experience Platform Debugger
Proxy switcher and proxy manager for Chrome: test proxies, rotate proxies, view proxy country flags, and control privacy settings.
Emulate devices, resize screens, and perfect your web design effortlessly with this cutting-edge testing and presentation tool.
Debug and test tag management (Google Tag Manager, DTM, Tealium) and analytics implementations.
Disable Content-Security-Policy for web application testing. When the icon is colored, CSP headers are disabled.
Edit cookies related to the current page and all its CORS frames right from the popup interface
Displays an icon if there is a X website tag on a given page
Web inspector for designers & developers. Measure elements, extract CSS & colors, capture screenshots & more.
🧑💻 Get code for AI & other research papers, create alerts, ask authors questions directly on Google, ArXiv, Scholar, PubMed, IEEE
Browser DevTools extension for debugging Google Analytics 4 (GA4) events.
Enhanced development environment for Google Apps Script with custom themes and tools.
The All in One SEO Analyzer is a free SEO tool that helps analyze your website and optimize it for search engines.
Debug Google Analytics, Google Tag Manager dataLayer, Google Ads, Facebook Ads & +18 ad platforms pixels: Twitter, TikTok and more
Blazing fast & offline playground for your web experiments
Explore and debug your Amplitude JavaScript SDK instrumentation by interacting with your site.
Tag Explorer is designed to simplify and enhance your tag monitoring process.
A web browser extension for checking accessibility issues
Fake the current date, time and time zone in JavaScript Date or Intl.DateTimeFormat objects.
Manage, manipulate, and plot one or more SQLite databases and optionally import and export records to a CSV table
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
Extension for automating chromium browser, Create project -> Record -> Edit Automation -> Manage -> Play (MV3)
Troubleshoot analytics tags, variables, events, cookies, and more. Supports Adobe Analytics, Google Analytics, and thousands more.
Redefine manual testing with best-in-class tools, supercharged with AI. JSON Formatter, Cache Manager, Responsive testing & more
Free Open AI ChatGPT and AI writer tool for e-commerce to generate compelling Product listing content easily
Instant spell-check on any web page
A simple browser tool changes file's icon on GitHub, GitLab, gitea and gogs.
Auto History Wipe: Clean browsing history, cache & cookies automatically or manually. Supports incognito mode and tab management.
Edit content of text area elements, or inner and outer HTML of node elements in Notepad++ text editor with real-time updates
The Visual Editing Helper extension allows users to load their website into Adobe Target or Adobe Journey Optimizer.
The Reddit Pixel Helper is a tool to QA your pixel implementation.
Spoof Geolocation, GPS Spoofing, Fake Location, Fake GPS, Google Maps, Location Changer, Location Spoofer, GPS Location
Tonalis Audio Recorder Redefines Tab Audio, Mic Recording, and Stereo Support for the Ultimate Experience
Eyedropper, color picker, palette creator, and more!
Inspect your scenarios in Make at a glance!
Displays a list of all Google Chrome cookies. Allows searching, viewing, editing, saving, restoring, and deleting cookies.
Get Facebook Cookies & Access Token
Try our SQLite Browser for easy management of SQLite databases. This sqlite db viewer is tailored for developers
Debugging/Profiling tools for your ServiceNow Next Experiences.
The Essential SEO Toolkit from Opace is a collection of useful SEO tools, which when clicked opens the tool using the current URL.
Quick access to IP, DNS & Network Tools. Check DNS, Whois, ASN, Traceroute, Ping and more. Tools for technical operators.
Reload all unpacked extensions using the extension's toolbar button or by browsing to "http://reload.extensions"
Create a recovery USB drive for your OnHub.
Cookie's best friend! Modern cookie manager.
Cookie Manager. Support Edit、Add、Delete and Search Cookie, Export/Import Cookies.
Create and view Markdown files easily from anywhere with our simple, GitHub-flavored markdown editor.
Instantly test your web page with different types of color vision deficiency.
A simple random password generator for Chrome browser
Use best proxy switcher with your proxy servers or let it download most recently checked list from our web site FREE for LIFETIME!
Auto Clicker - MT Auto Clicker [Beta Version] is your go-to tool for automating repetitive tasks on your system.
Material DevTools Theme Collection
Forget about all the Code chaos and Customize your website in a handy way
OPFS Explorer is a Chrome DevTools extension that allows you to explore the Origin Private File System (OPFS) of a web application.
Meta Tag Explorer is the best SEO tool to find SEO Meta of any website you browse
Lightweight AdBlock gives you an ad-free experience while watching videos on YouTube and browsing your favorite websites.
Extract data from web pages into spreadsheets
See when Segment, Rudderstack, Attribution and Dreamdata events are being tracked.
Easily search and add a GIF into any GitHub comment box.
A form builder for Google Sheets that allows you to embed forms on any site with any style.
The Powerful Cloud-based IDE Service
Simple shortcuts and tools to save time
Developer tooling for Web Components and Web Component Libraries
A debugger tool helps to intercept mixpanel events and display event properties
Quickly clear session data, cookies, and local storage from the current website with a single click!
SharePoint Online dev toolbox: PnP JS & Graph SDK consoles, REST client, search, file editor, webhooks, properties & AI assistant
Adds debugging tools for Preact to Chrome
Per-site proxy switcher. Route specific websites through your own HTTP/SOCKS5 proxies — system settings untouched.
Debug Cocos Creator Games with easy, display node trees and node properties, it works with both Cocos Creator v2 and v3
Disable auto-discard of all tabs or for tabs with specific domains
Extract assets, colors, typography & tokens from any site. Export to CSS, SCSS, Tailwind & more. The ultimate dev & design toolkit.
SpiderNow's Technical SEO and Web Audit tools are designed to help website owners discover and improve On-Page SEO issues.
Easily find RSS feed URL of any website
Check SEO, AEO, GEO, and AI search readiness signals directly on the current web page.
Simulate barcode scanning!
Logs all Encrypted Media Extensions (EME) method calls and events.
Best tool you can ask to debug and ship web based products faster!
Retreive/Find RSS feeds from Websites
Helper to debug Amazon Ad tag setup on your website.
Edit any page's content by switching to design mode, where you can modify the content and drag images around like a Word Editor
A quick access toolbox of Android developer tools, calculators and information.
OnPageSEO.ai SEO Chrome Extension with Ai, Chosen by Best Rated SEO Companies! Optimize with the Best SEO Tools to elevate your…
Block Google Analytics on specified websites. Stop tracking your own visits in Google Analytics with a simple Chrome extension.
Capture videos, screenshots, events and more to report bugs faster.
Use CC Generator: Fast, secure fake cc gen tool for developers. Create fake credit card number instantly for safe online testing.
A DevTools extension to visualize and debug Scroll-Driven Animations
Debug GTM, GA4, Google Ads, Meta & TikTok pixels. DataLayer viewer, consent mode checker, cookie manager + 200+ tech detection.
Show Analytics hits & tracking errors in the extension Icon hits.
Editor to create Android Cordova app that are run with the ApkOnline android emulator platform
CSS Brio is a fast CSS Animation viewer and CSS code provider for Designers.
Ranorex automation support.
View or edit one or more SQLite databases simultaneously.
Custom demo, every demo: Turn your standard demo into a tailored experience for your customers in minutes.
Handy online tools for developers!
Modifies feature flags on X.com / Twitter.com
Access your USB-connected Android terminal without installing ADB
Speero's A/B Pre-test Calculator helps you answer vital pre-test questions like MDE, sample size, duration, and more.
Table Data Export Plugin
Automation Anywhere A360 Assistant
This browser extension allows you to easily visualize the component tree of an Angular application, making it easy to understand…
Makes your life easier when developing in GoodData Cloud BI platform
Adds Lexical debugging tools to the Chrome Developer Tools.
Dynamics 365 Finance & Operations Developer Tools to open table browser, run class, or open form by their name
Ensighten Utilities
Generate, modify, and fix Google Earth Engine code using AI Models. Now with new Voice Mode & 5200+ Datasets!
A debugger tool helps to intercept segment events and display event properties
This extension allows you to select variants of A/B testing by the Google Optimize.
Odoo Barcode Scanner Emulator
GIF Player allows you to upload and control the speed of your GIFs, saving any frame for the perfect reaction, meme or share.
Take control of your browser with a single click! Pause All Extensions is the ultimate tool for managing your Chrome extensions,…
Refresh custom GPT stats from ChatGPT and open deeper GPT Tools analytics when you need them.
Monitor TLS/SSL certificate expiration and get notified via email or Slack.
Adds a 'Download as ZIP' option to Hugging Face repository pages. Download entire repos as ZIP files directly from the browser.
Adobe Analytics, AEP & Launch debugger. Inspect Web SDK, XDM & tracking calls directly in Chrome DevTools.
Annotate live webpages and export structured change requests to AI coding assistants. Draw your changes instead of describing them.
Debug A/B tests from AB Tasty. Open source.
A Chrome extension that captures selected text and displays it on editor.
Simple device toggle to switch between Desktop and Mobile (375x600)
Retrieves X key for logged in user. Requires cookies permission.
Salesforce Markup Builder is a UI design tool that helps developers, admins and designers quickly create Lightning Web Components.
Effortlessly rearrange CMS collection items in Webflow with a simple drag and drop interface.
Migrate your Lovable Cloud projects to Supabase. Export project data and set up Supabase backend infrastructure.
Chrome extension for easy file viewing on Google Cloud Storage with improved UI, stats, pagination, and search features.
Option+Click React components in your browser to instantly open the source in VS Code
Find surface level vulnerabilities in your web applications.
SEO, AEO & GEO analyzer: AI Overview tracking, content briefs, schema/hreflang/robots audits, theme & plugin detection.
CHEQ Utilities
AI for n8n: AgentCraft Copilot | Debug, Generate & Fix Workflows 10x Faster Debug n8n workflows, generate JavaScript code, and fix…
Render mermaid diagrams in markdown files in GitHub and GitHub Gist (mermaid@8.14.0).
Multi-device viewer and mobile preview for phone, tablet and desktop—with responsive testing, mobile simulator and device emulator.
Watch analytics, GTM and consent events in real-time. 600+ platforms, optional AI features, all in Chrome DevTools.
Automatically discards inactive tabs to save memory.
SEO Health Checker audits on-page SEO in one click. Check meta tags, headings, links, schema, images, keyword density and SEO health
Mock JavaScript Date object for testing. Set any date/time, adjust time speed, and manage per-site settings for web development.
Reads Google & Microsoft Forms and shows AI answers using Gemini.
Check the contrast ratio between two colors according to WCAG.
Proxy Manager for Chrome: HTTP, HTTPS, SOCKS4 & SOCKS5. One-click switching, bulk import, WebRTC leak protection. No account needed.
Lightweight security scanner that analyzes websites for common vulnerabilities, trackers, and security misconfigurations
Cloudboard v6
Create a link to a specific portion of a page by selecting a text snippet and using right click of a mouse.
Boost productivity on CPQ sites, currently supporting Oracle CPQ Cloud
Inspect & control GSAP banner animations. Verify timings, dimensions & scrub timelines. Essential for Devs & QA. NOW with dark mode.
Click a component in your browser to instantly open the source in VS Code, WebStorm, Cursor, TRAE, etc.
React Click To Component, a Chrome extension to open a React component in the editor by clicking on it.
GEO (Generative Engine Optimization) audit tool to maximize your AI visibility.
Add animations to your website visually, no coding needed!
Your personal board with designs inspiration from Dribbble, Behance, and Uplabs.
130+ developer and admin utilities in your browser, with AI Assistant powered by Chrome Gemini Nano. Offline and private.
Search and view device details from a JSON file.
Add extra functionality to SAP Customer Data Cloud toolkit console
Adds Brick Next debugging tools to the Chrome Developer Tools.
Show avatars in pull requests and issue pages
Debug analytics and marketing pixels in real time with AH Debugger.
Chrome Extension to manage Feature Flags in supported web apps
S3 browser, client & file explorer for AWS S3 and S3-compatible storage. Browse, upload, download & manage files.
Track and display event listeners on a webpage.
Discover and analyze all fonts used on any webpage with interactive highlighting.
Right-click to instantly search selected text on prelist or any custom website. Your ultimate productivity tool.
A Chrome browser extension that estimates the HTTP compression level of the page.
Supercharge your Webflow projects with our extension, including features to enhance your workflow and boost productivity.
DevToolkit, 60+ developer tools in one click, screenshot, CSS inspector, SEO audit, responsive, cookie editor, font detector & more.
Transform any website into a sleek, app-like window for focused browsing and productivity!
This extension allows you to generate and download Excel or PDF files of the DLO-DMO mapping within Salesforce Data Cloud.
A robust code editor extension with multi-language support, intelligent layout, and specialized JSON formatting.
JSON-LD Structured Data + GEO (Generative Engine Optimization) Analyzer. Google Rich Results & AI Search Engine Optimization.
Fast offline text and code editor for ChromeOS with JavaScript execution and HTML preview.
A code editor extension with multi-language support, intelligent layout, JSON formatting, and file comparison.
Manage and toggle feature flags from Chrome DevTools in real time.
Turn a focused element into an Editor.
Switch, test and auto-rotate HTTP/SOCKS5 proxies. Per-proxy speed, country and leak checks. A developer tool, not a VPN.
Parse problem sample test cases from Codeforces, AtCoder, and CodeChef directly into the AskSenior Online Compiler.
Extract design tokens, CSS, accessibility data and animations from any element on any page.
Color contrast checker for WCAG AA and AAA. Check the contrast ratio of two colors, preview text, and apply an accessible fix.
Real-time web protection against malicious websites and phishing links.
A full-featured offline text and code editor powered by Monaco, running in a full browser tab with auto-save, multi-tabs
Displays detailed diagram for Amazon Connect flows and modules
An AI assistant available in your browser without leaving to another page.
Companion extension for https://passkeys.tools that intercepts and modifies WebAuthn operations.
Overlay design mockups on web pages for pixel-perfect implementation verification
This app is a SASS / SCSS compiler.
Displays a configurable timer on every page that persists across tabs and reloads.
Simple extension for displaying the optimizely data
See which A/B tests are live on the current website, which are personalizations, and which pages they target.
Detects Qlik Sense and Qlik Cloud tables and exports visible or paginated data as CSV, JSON, or XML.
Quickly import content from any page to the JSON Data Generator using the right-click context menu.
Translate ASCII to Binary instantly with our binary translator. Perfect for coding and tech enthusiasts!
A retro pixel-art ASCII table for quick lookup of character codes, symbols, and developer reference.
Quickly look up transactions and addresses on Bitcoin, Ethereum and other supported networks
Select any webpage element to inspect computed CSS, live edit styles, and apply 80+ premium animation presets.
1-click SEO audit for accountants & CPAs. On-page, schema, NAP, PageSpeed, sitemap, content. Export PDF & CSV.
The ultimate site blocker for deep work. Block websites, stay focused, boost productivity with a simple focus mode & website blocker
Safely export, import, compare, schedule, and repeat Salesforce data jobs—directly from your browser.
Import, export, and update Neto discounts in bulk using CSV.
Companion extension for Tiny Flags, a client-side feature flags system
Governed browser automation over your own authenticated session, for AI agents.
A browser extension to investigate security events (IP addresses and files) across multiple threat intelligence platforms.
AI-powered Second Brain and Autonomous Web Pilot
See which AI crawlers, search engines, and SEO bots can access any website via its robots.txt rules.
Python compiler, IDE and interpreter in your browser. Learn Python by running it — offline, with numpy, pandas and turtle.
Scan, upload, and manage images via FireImager API. Extract page images, upload to cloud, and browse your gallery.
This extension makes easier for you to use the data by remembering the login information through cookies. We have a special tool…
SEO optimization tips for Google Docs, WordPress, and Shopify. Real-time content analysis and recommendations.
A collection of tools for HubSpot Developers.
A secure, lightweight developer toolkit: JSON Formatter, Color Picker, and API Request Tester.
Workflow schedule visibility, publish review, unpublished badges, and grouped backups for self-hosted n8n 2.x.
Create animated GIFs from JPG, PNG, and WebP images — entirely offline in your browser.
Exports staff course data/certificates from Staff Skills Academy and imports completed training into ASC-WDS records.
Free HTML CSS JS compiler with manual Run, live preview, console, import design, export & share. 100% local.
Auto-freezes inactive tabs to save RAM. Idle + low-memory detection, duplicate cleanup, session backup, scroll restore.
Edit code and text offline with tabs, syntax highlighting, and crash-safe local workspace recovery.
Bring the AD Ports AI catalog into your web AI chat with a safe-by-default prompt guard and quick skill insertion.
Quick access to top engineering and tech blogs from leading companies in cloud, dev tools, consumer tech, and business sectors.
This extension makes easier for you to use the data by remembering the login information through cookies. We have a special tool…
Copy selected localStorage and sessionStorage keys out of one page and apply them to another.
Add classic meme text to animated GIFs and export — entirely offline in your browser.
One-click access to your FromFlow dashboard, bot builders, templates and tools, plus a built-in Discord snowflake ID decoder.
Inspect Shopify product, variant, and collection data on the page you're viewing — shown in a floating panel, only when you open it.
Side-by-side pages for the pairs people compare most in this category.
Reddit Pixel Helper currently leads this category on rating and review volume, but the right choice depends on whether you need sports features for personal or team use.
Yes — 229 of the 253 extensions in this category are free, and several more offer a usable free tier.
By install base and rating, with editorial notes on trade-offs.