Extracts a color palette from any website using multiple algorithms, with export to Figma, Sketch, and Adobe Swatch.

Emulate devices, resize viewports, and test responsive web designs with touch simulation and breakpoint guides.

Free browser extension for website traffic, keyword density, Whois, and SEO analysis.

Audits websites for SEO, speed, and security issues by crawling hundreds of pages simultaneously.

A Chrome extension for verifying, debugging, and troubleshooting Snap Pixel implementations on websites.

Connect Sourcegraph to GitHub to open repos, compare revisions, and search code from Chrome's Omnibox.

Right-click any text to see its font, size, color, and contrast ratio.

Browser extension for testing REST APIs by sending HTTP requests and inspecting responses.

tweak lets you mock and modify HTTP requests in the browser for testing, development, and demos.

Yet Another REST Client is a free Chrome extension for testing and debugging RESTful APIs with features like favorites

Automatically finds open-source code for research papers and enables alerts and author questions.

Free SEO tool that analyzes website meta tags, keywords, and content structure to provide an optimization score and

Inspect and debug Amplitude JavaScript SDK events, properties, and configuration in real time on your site.

Automatically validates AMP pages and shows pass/fail status, errors, and AMP version links.

Fake Data generates random, realistic data to fill forms instantly with customizable options and keyboard shortcuts.

Checks robots.txt, meta robots, X-Robots-Tag, canonical tags, AI bot exclusions, and highlights nofollow links.

Hover over any web element to measure sizes, margins, paddings, and inspect CSS, colors, and more.

Browser extension to visualize, analyze, and debug tracking tags on any webpage using Tag Inspector's library.

Inspect, modify, and debug OpenUI5/SAPUI5 controls and properties directly from Chrome DevTools.

Visually edit any website's CSS without coding using a point-and-click interface with live preview and export.

An offline code editor for HTML, CSS, and JavaScript that runs in a new tab, with preprocessor support, collaboration,

Adds repo size, file sizes, download links, and copy-to-clipboard to GitHub.

Adds a colored label to websites to visually distinguish between environments like dev, staging, and production.

Productivity toolkit for Salesforce devs/admins: inspect data, metadata, flows, run SOQL/Apex, manage deployments.