CSS Inspector for Chrome

Tracking since Apr 22, 2026.

Changelog

• Jun 9, 2026
  description

  UI DevTools is a professional Chrome extension for UI debugging, design audits, and frontend inspection on modern websites. Built for developers, designers, and QA teams, it helps you review layouts, inspect interface behavior, and evaluate visual implementation directly inside the browser.
  
  Use UI DevTools to analyze real pages, debug UI issues, and speed up design-to-development reviews with a clean side panel workflow.
  
  Key features:
  # UI debugging for live websites
  # Design audit support for modern web interfaces
  # Frontend inspection for layout, spacing, and structure
  # Side panel workflow for faster website review
  # Works across HTTP and HTTPS pages
  # Useful for web development, QA, and UI/UX review
  
  Whether you are checking responsive layouts, reviewing visual consistency, or inspecting a page during development, UI DevTools gives you a faster way to audit and troubleshoot frontend UI inside Chrome.

  CSS Inspector – Inspect Any Element. Copy CSS Instantly.
  Hover over any element on any website and CSS Inspector highlights it with the exact selector and dimensions. Click it — and all CSS properties are extracted instantly into a clean side panel.
  No more digging through Chrome DevTools. No more guessing styles. Just hover, click, and copy the code.
  Like Figma's Dev Mode — but for any live website.
  
  # HOW IT WORKS
  - Open the CSS Inspector side panel in Chrome
  - Hit "Inspect" to activate
  - Hover any element — see selector and dimensions live
  - Click it — full CSS extracted instantly, ready to copy
  
  # WHAT YOU GET FOR EVERY ELEMENT
  - Colors — Text, background, border with exact hex values
  - Typography — Font family, size, weight, line-height, alignment
  - Spacing — Padding, margin, width, height, box model
  - Effects — Shadows, borders, opacity, transitions
  - Accessibility — Contrast ratio with WCAG pass/fail result
  - Code — Clean CSS ready to copy and paste
  
  # WHO IS IT FOR
  - Frontend developers who want to grab CSS from any live site fast
  - UI/UX designers checking if a live page matches the Figma design
  - QA engineers verifying spacing, contrast, and visual accuracy
  - Freelancers and agencies inspecting client or competitor websites

• Jun 9, 2026
  short_description

  Professional UI debugging, design audit, and frontend inspection tool for modern web development.

  Hover any element on any webpage and instantly extract its CSS — colors, fonts, spacing, box model, and accessibility.

• Jun 9, 2026
  name

  UI DevTools

  CSS Inspector for Chrome

Permissions & access

Permissions

sidePanelactiveTabscripting

Host access

http://*/*, https://*/*

Screenshots