QA Toolkit

Tracking since May 26, 2026.

Changelog

• Jun 8, 2026
  description

  QA Toolkit is an all-in-one browser extension built for QA engineers and web developers who need fast, reliable tools without switching between apps or DevTools tabs.
  
  Tools included:
  
  🎨 Color Picker
  Pick any color from the page using the native EyeDropper API. Displays HEX, RGB, and HSL values instantly. Keeps a history of your last 10 picks.
  
  🔍 CSS Inspector
  Click any element on the page to get its optimized CSS selector and full selector path, plus relative and absolute XPath. Ready to copy in one click.
  
  📐 Ruler
  Overlay a pixel ruler on any page. Measure distances between elements, track cursor coordinates, and see nearest-element guide lines — all in real time.
  
  🔗 Redirect Checker
  Trace the full redirect chain of any URL step by step — see every hop, status code, and final destination without leaving the browser.
  
  🕵️ User Agent Switcher
  Spoof your browser's User Agent per tab using session rules. Test how your site responds to different devices and browsers without restarting.
  
  📦 Mock Server
  Intercept any network request and return a custom JSON response. Define your own status code, headers, and body — no backend needed.
  
  { } JSON Formatter
  Paste or capture raw JSON and get it formatted with syntax highlighting. Supports multiple themes (Monokai, Nord, One Dark, Spectrum, GitHub).
  
  🖼️ OG Inspector
  Inspect Open Graph and Twitter Card meta tags on any page. Preview exactly how your link will look when shared on Twitter/X, Facebook, LinkedIn, Telegram, and Discord.
  
  📋 iFrame Inspector
  List all iFrames on the current page with their source URLs, dimensions, and sandbox attributes. Spot hidden iFrames instantly.
  
  📝 Lorem Ipsum
  Generate placeholder text of any length directly in the extension popup — no third-party sites required.
  
  🎨 Page Painter
  Draw, highlight, and annotate directly on any webpage. Useful for visual bug reports and quick UI mockups during reviews.
  
  The Privacy Policy can be reviewed here: https://andreyoksenyuk.github.io/qa-toolkit-privacy/

  QA Toolkit is an all-in-one browser extension built for QA engineers and web developers who need fast, reliable tools without switching between apps or DevTools tabs.
  
  Tools included:
  
  🎨 Color Picker
  Pick any color from the page using the native EyeDropper API. Displays HEX, RGB, and HSL values instantly. Keeps a history of your last 10 picks.
  
  🔍 CSS Inspector
  Click any element on the page to get its optimized CSS selector and full selector path, plus relative and absolute XPath. Ready to copy in one click.
  
  📐 Ruler
  Overlay a pixel ruler on any page. Measure distances between elements, track cursor coordinates, and see nearest-element guide lines — all in real time.
  
  📝 Lorem Ipsum
  Generate placeholder text of any length directly in the extension popup — no third-party sites required.
  
  🖼️ Lorem img
  Generate test placeholder images of any size and style directly in the popup — no external services or uploads needed. Choose from size presets (favicons, avatars, social cards, banners, edge cases like 1×1 and max dimensions) or set a custom width and height. Pick from 6 background types (solid, gradient, checkerboard, noise, stripes, grid), set labels with dimensions or custom text, and export as PNG, JPEG, WebP, or SVG. Unique feature: embed EXIF orientation tags (1–8) into JPEG to test auto-rotate handling in file upload forms.
  
  🔗 Redirect Checker
  Trace the full redirect chain of any URL step by step — see every hop, status code, and final destination without leaving the browser.
  
  🕵️ User Agent Switcher
  Spoof your browser's User Agent per tab using session rules. Test how your site responds to different devices and browsers without restarting.
  
  📦 Mock Server
  Intercept any network request and return a custom JSON response. Define your own status code, headers, and body — no backend needed.
  
  { } JSON Formatter
  Paste or capture raw JSON and get it formatted with syntax highlighting. Supports multiple themes (Monokai, Nord, One Dark, Spectrum, GitHub).
  
  🖼️ OG Inspector
  Inspect Open Graph and Twitter Card meta tags on any page. Preview exactly how your link will look when shared on Twitter/X, Facebook, LinkedIn, Telegram, and Discord.
  
  📋 iFrame Inspector
  List all iFrames on the current page with their source URLs, dimensions, and sandbox attributes. Spot hidden iFrames instantly.
  
  🎨 Page Painter
  Draw, highlight, and annotate directly on any webpage. Useful for visual bug reports and quick UI mockups during reviews.

Permissions & access

Permissions

activeTabscriptingstoragewebRequestdeclarativeNetRequesttabs

Host access

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Screenshots