Item logo image for Developer's Toolkit

Developer's Toolkit

5.0(

1 rating

)
ExtensionDeveloper Tools11 users
Item media 1 (screenshot) for Developer's Toolkit

Overview

DevTools companion with side panel diagnostics for CSS, JS, network, and cookies.

New 1.1.0 Version Launched Presenting UI Prompt Builder; 🎨 UI Prompt Builder with 9 section types 🎬 Animation detection (14 libraries) πŸ“Έ 3 screenshot modes (Viewport, Full Page AI, Download) ✍️ Custom prompt instructions πŸ“Š Loading progress bar with status messages 🎨 Design token extraction (colors + typography) πŸ“š Animation library recommendations per section 1.0.3 Version Developer's Toolkit is a comprehensive browser companion for web developers. ⚑ FEATURES: πŸ“Š OVERVIEW β€’ Quick page diagnostics and meta info β€’ Core Web Vitals snapshot β€’ Technology detection 🎨 CSS TOOLS β€’ Live CSS inspector and editor β€’ Box model visualizer β€’ Grid/Flexbox debugger β€’ Accessibility contrast checker β€’ CSS statistics and unused styles πŸͺ COOKIE MANAGER β€’ Full cookie matrix with editing β€’ Privacy classification (Essential/Analytics/Marketing) β€’ Personas for testing different user states β€’ GDPR compliance checking β€’ Third-party cookie spotlight πŸ“ FORM TOOLS β€’ Auto-fill with presets β€’ Form validation tester β€’ Endpoint analyzer πŸ–ΌοΈ MEDIA TOOLS β€’ Image inventory and optimization tips β€’ Lazy loading audit β€’ Alt text analyzer β€’ Broken image finder ⚑ JS DEBUGGING β€’ Console interceptor β€’ Network request monitor β€’ Event storm detector β€’ Promise tracker β€’ Error breakpoints πŸ€– AI ASSISTANT β€’ Powered by OpenRouter β€’ Ask questions about the page β€’ Get code suggestions β€’ Security analysis β€’ Performance tips πŸ“ˆ PAGESPEED INSIGHTS β€’ Mobile & Desktop analysis β€’ Core Web Vitals breakdown β€’ Performance recommendations πŸ”§ MORE TOOLS β€’ Security headers checker β€’ Link analyzer β€’ Color palette extractor β€’ Page outline viewer β€’ Meta tag inspector β€’ W3C validators πŸ’‘ REQUIRES: β€’ OpenRouter API key for AI features (free tier available) β€’ Optional: PageSpeed API key for unlimited requests πŸ”’ PRIVACY: β€’ No data collection β€’ API keys stored locally β€’ All analysis done client-side

Details

  • Version
    1.3
  • Updated
    January 13, 2026
  • Size
    262KiB
  • Languages
    English (United States)
  • Developer
    Website
    Email
    raman@kwebby.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

Google apps