PixelByPixelMatch

Tracking since Apr 1, 2026.

Changelog

• May 4, 2026
  permissions

  storage, activeTab, scripting, tabs, clipboardRead

  storage, activeTab, scripting, tabs, clipboardRead, debugger, declarativeNetRequestWithHostAccess, nativeMessaging

• May 4, 2026
  description

  PixelByPixelMatch - Figma-to-Web QA Tool
  
  Stop manually comparing Figma mockups to your live website. PixelByPixelMatch overlays your Figma design data directly onto any webpage and flags every visual mismatch in seconds.
  
  ---------------------------------
  HOW IT WORKS
  ---------------------------------
  
  1. Run the companion Figma plugin (PixelByPixelMatch Exporter) on your design frame
  2. Copy the exported JSON
  3. Open your live website in Chrome and launch the extension
  4. Paste the JSON and click Scan
  5. Every element is instantly highlighted green (match) or red (mismatch) with a detailed tooltip
  
  ---------------------------------
  WHAT IT CHECKS
  ---------------------------------
  
  - Font Family: detects mismatched typefaces
  - Font Size: pixel-perfect size comparison
  - Font Weight: catches 400 vs 500 vs 700 differences
  - Text Color: with full gradient text support (background-clip: text)
  - Line Height: flags spacing differences
  - Letter Spacing: catches tight/loose tracking mismatches
  - Multi-paragraph text: correctly matches Figma blocks split across multiple paragraphs
  - Split headings: handles Figma designs where one heading is split into separate text nodes
  - Image Dimensions (optional): checks rendered width/height of images, logos and icons against Figma sizes
  - Hover Effects (optional): flags anchor and button elements with no CSS hover rule or transition
  
  ---------------------------------
  SMART MATCHING ENGINE
  ---------------------------------
  
  - Exact, stripped, substring and fuzzy matching in priority order so exact Figma matches always win over looser ones
  - Mixed-weight tolerance so bold/regular combo text nodes never trigger false mismatches
  - Content not in Figma is highlighted in orange instead of being wrongly flagged as a style error
  - Gradient text detection so lime and gradient headings never trigger false color errors
  - Each Figma node can only match one web element, preventing duplicate reports
  
  ---------------------------------
  DASHBOARD
  ---------------------------------
  
  - Live match score with a donut chart
  - Breakdown by error type (color, font, size, weight, image, hover)
  - Filterable results list: All / Errors / Matched / Missing
  - Click any row to scroll to and highlight that element on the page
  - Tooltips show side-by-side Figma vs Web values per property
  - Multiple issues on the same element are merged into one organised tooltip
  
  ---------------------------------
  PRIVACY
  ---------------------------------
  
  All processing is done locally in your browser. No data is sent to any external server. The Figma JSON you paste never leaves your machine.
  
  ---------------------------------
  WHATS NEW IN v4.1.1
  ---------------------------------
  
  - Fixed false font-family mismatches caused by looser Figma nodes outcompeting exact matches
  - Multi-paragraph Figma text nodes now correctly split and match per paragraph
  - Split heading nodes now match the full web heading correctly
  - Hover check restricted to true anchor and button elements only, no false positives on non-interactive text
  - Image dimension checking now covers all page images including logos, icons, hero banners and CSS background images
  - Style and hover errors for the same element are combined into a single organised tooltip
  - Gradient and lime text detection so correct colours are never flagged as wrong

  PixelByPixelMatch — see your Figma design and live website side by side, on every device, in every engine.
  
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  WHAT IT DOES
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 
  
  🎨  PULL FROM FIGMA
  Paste a Figma file URL. Extract every color, font, weight, and size used in the design — in one click.
  
  🔍  SCAN THE LIVE PAGE
  One click reads every visible style on the current tab. Click any element to inspect its computed font, size, weight, color.
  
  📱  RESPONSIVE PREVIEW GALLERY
  Open one URL in 20+ device viewports at once: iPhone SE → iPhone 16 Pro Max, iPad Mini, iPad Pro, Pixel, Galaxy, MacBook, desktop. Side-by-side, scrollable, interactive.
  
  ⚡  REAL SAFARI + FIREFOX RENDERING (PRO)
  This is the big one. Most "responsive" tools fake Safari and Firefox by changing the User-Agent string — Chrome is still doing the rendering. We don't. Pro mode launches the REAL WebKit (Safari) and REAL Gecko (Firefox) engines via a small companion app, takes a screenshot, and shows you what each engine actually renders. Catches bugs that no Chromium-based tool can detect.
  
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  WHO IT'S FOR
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  ▸ Designers double-checking that engineering shipped what was designed
  ▸ Front-end devs catching cross-browser bugs without juggling 3 browsers
  ▸ QA teams running visual regression checks before release
  ▸ Anyone tired of "works on my machine" reports
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  KEY FEATURES
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  ✓ Figma color & typography extraction (official Figma API)
  ✓ Click-to-inspect overlay on any live page
  ✓ 20+ pre-configured device profiles
  ✓ Adjustable zoom (35% → 100%)
  ✓ Filter by phone / tablet / desktop
  ✓ Per-device User-Agent, viewport, DPR, touch settings
  ✓ Real WebKit & Gecko rendering (Pro)
  ✓ Works offline — including localhost & intranet sites
  ✓ 100% local — your URLs never leave your machine
  ✓ Dark mode UI
  
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  PRIVACY (READ THIS)
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  • No analytics. No tracking. No telemetry.
  • Your Figma token is stored only in chrome.storage and used only for direct calls to Figma's API.
  • Pro mode renders screenshots on your own machine via a local companion app. Page content and screenshots never go to any server.
  • The only outside network call (Pro only) is the first-time browser engine download from Microsoft's Playwright CDN.
  
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  GETTING STARTED
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  1. Install the extension.
  2. Click the icon, paste your Figma Personal Access Token (one-time setup).
  3. Open any URL → click the extension icon → "Responsive Preview" to see it on all devices.
  4. For Real Safari/Firefox rendering: click "✨ Pro" in the gallery and follow the install prompts.
  
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  SUPPORTED BROWSERS
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  ✓ Chrome (recommended)
  ✓ Microsoft Edge
  ✓ Brave
  ✓ Chromium
  (Pro helper currently macOS only — Windows support coming soon.)
  
  Built for designers and engineers who care about the details. Questions or feedback? Reach out via the support link.
  
  
  Version 4.1.1.2 — Real Engines (Pro)
  
  ✨ NEW: Pro tier — render every device tile with real WebKit (Safari) and real Gecko (Firefox) instead of Chromium-with-spoofed-UA. Catches engine-specific bugs that no Chromium-based tool can detect.
  
  🚀 Performance: Concurrent render queue with smart cancellation. Switching engines mid-render no longer wastes work.
  
  🪶 Tiny install: The Pro helper companion app is just 2.8 MB. Browser engines download lazily — only when you first pick that engine, only what you actually use.
  
  🔒 Still 100% local. No servers. No telemetry. Your URLs never leave your machine.
  
  🛠 Under the hood:
  • Native messaging bridge to local helper (Chrome's official API)
  • Playwright-powered real engine launches
  • Per-engine lazy install (~286 MB WebKit, ~268 MB Firefox, both optional)
  • First-time download progress messaging in the gallery
  
  Default mode (free) unchanged — Chromium iframes with per-device UA & viewport.

• May 4, 2026
  short_description

  Compare Figma designs with live websites - check fonts, sizes, weights, and styles. (Beta)

  Compare Figma designs with live websites. Check fonts, sizes, colors, and preview on phone & tablet viewports side by side.

• Apr 22, 2026
  description

  Detailed Description
  Bridge the gap between design and development.
  
  PixelByPixelMatch is the ultimate QA tool for frontend developers and designers. It connects your live website directly to your Figma data, allowing you to verify implementation accuracy in seconds. No more guessing if the font size is correct or if the margin is slightly off.
  
  ✨ Key Features:
  
  Smart Style Comparison: Automatically scans your webpage and compares it against your Figma text and style properties.
  Font & Typography Check: Instantly spots mismatches in Font Family, Size, Weight, Line Height, and Letter Spacing.
  Precision Overlay: Highlights elements that don't match the design specs, so you can fix them fast.
  Glassmorphism UI: A beautiful, modern interface that fits right into your workflow.
  Privacy-Focused: All comparisons happen locally in your browser. No design data is sent to external servers.
  🚀 How it works:
  
  Export your design data using our specific PixelByPixelMatch Exporter plugin in Figma.
  Open this extension on your developed webpage.
  Click Scan and watch as it validates every text element on your page against the design.
  Perfect for Pixel Perfectionists, QA Engineers, and Frontend Developers who care about the details.
  
  Updates in v4.0:
  
  New "Glass" UI redesign.
  Improved matching algorithm for complex layouts.
  Support for mixed styles in text blocks.

  PixelByPixelMatch - Figma-to-Web QA Tool
  
  Stop manually comparing Figma mockups to your live website. PixelByPixelMatch overlays your Figma design data directly onto any webpage and flags every visual mismatch in seconds.
  
  ---------------------------------
  HOW IT WORKS
  ---------------------------------
  
  1. Run the companion Figma plugin (PixelByPixelMatch Exporter) on your design frame
  2. Copy the exported JSON
  3. Open your live website in Chrome and launch the extension
  4. Paste the JSON and click Scan
  5. Every element is instantly highlighted green (match) or red (mismatch) with a detailed tooltip
  
  ---------------------------------
  WHAT IT CHECKS
  ---------------------------------
  
  - Font Family: detects mismatched typefaces
  - Font Size: pixel-perfect size comparison
  - Font Weight: catches 400 vs 500 vs 700 differences
  - Text Color: with full gradient text support (background-clip: text)
  - Line Height: flags spacing differences
  - Letter Spacing: catches tight/loose tracking mismatches
  - Multi-paragraph text: correctly matches Figma blocks split across multiple paragraphs
  - Split headings: handles Figma designs where one heading is split into separate text nodes
  - Image Dimensions (optional): checks rendered width/height of images, logos and icons against Figma sizes
  - Hover Effects (optional): flags anchor and button elements with no CSS hover rule or transition
  
  ---------------------------------
  SMART MATCHING ENGINE
  ---------------------------------
  
  - Exact, stripped, substring and fuzzy matching in priority order so exact Figma matches always win over looser ones
  - Mixed-weight tolerance so bold/regular combo text nodes never trigger false mismatches
  - Content not in Figma is highlighted in orange instead of being wrongly flagged as a style error
  - Gradient text detection so lime and gradient headings never trigger false color errors
  - Each Figma node can only match one web element, preventing duplicate reports
  
  ---------------------------------
  DASHBOARD
  ---------------------------------
  
  - Live match score with a donut chart
  - Breakdown by error type (color, font, size, weight, image, hover)
  - Filterable results list: All / Errors / Matched / Missing
  - Click any row to scroll to and highlight that element on the page
  - Tooltips show side-by-side Figma vs Web values per property
  - Multiple issues on the same element are merged into one organised tooltip
  
  ---------------------------------
  PRIVACY
  ---------------------------------
  
  All processing is done locally in your browser. No data is sent to any external server. The Figma JSON you paste never leaves your machine.
  
  ---------------------------------
  WHATS NEW IN v4.1.1
  ---------------------------------
  
  - Fixed false font-family mismatches caused by looser Figma nodes outcompeting exact matches
  - Multi-paragraph Figma text nodes now correctly split and match per paragraph
  - Split heading nodes now match the full web heading correctly
  - Hover check restricted to true anchor and button elements only, no false positives on non-interactive text
  - Image dimension checking now covers all page images including logos, icons, hero banners and CSS background images
  - Style and hover errors for the same element are combined into a single organised tooltip
  - Gradient and lime text detection so correct colours are never flagged as wrong

• Apr 1, 2026
  short_description

  Compare Figma designs with live websites - check fonts, sizes, weights, and styles.

  Compare Figma designs with live websites - check fonts, sizes, weights, and styles. (Beta)

Permissions & access

Permissions

storageactiveTabscriptingtabsclipboardReaddebuggerdeclarativeNetRequestWithHostAccessnativeMessaging

Host access

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Screenshots

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