Developer's Toolkit

Name: Developer's Toolkit
Rating: 5 (1 reviews)
Author: Promptslove.com

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

As of June 2026, Developer's Toolkit has 16 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.

Promptslove.com Developer Tools

Chrome Web Store ↗.crx

Users−5.9%

Rating0%

5.00

1 reviews

Reviews0%

Version

1.3

Manifest V3

History

7 snapshots

Tracking since Apr 17, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 17, 2026	17	5.00	1	1.3
Apr 26, 2026	19	5.00	1	1.3
May 7, 2026	20	5.00	1	1.3
May 14, 2026	18	5.00	1	1.3
May 23, 2026	17	5.00	1	1.3
Jun 2, 2026	18	5.00	1	1.3
Jun 10, 2026	17	5.00	1	1.3
Now	16	5.00	1	1.3

Permissions & access

Permissions: storagescriptingsidePanelactiveTabtabscontextMenus
Host access: <all_urls>, https://openrouter.ai/*, https://validator.w3.org/*, https://jigsaw.w3.org/*, https://www.googleapis.com/*, https://pagespeedonline.googleapis.com/*

Screenshots

About

New 1.1.0 Version Launched

Presenting UI Prompt Builder;

🎨 UI Prompt Builder with 9 section types
🎬 Animation detection (14 libraries)
📸 3 screenshot modes (Viewport, Full Page AI, Download)
✍️ Custom prompt instructions
📊 Loading progress bar with status messages
🎨 Design token extraction (colors + typography)
📚 Animation library recommendations per section

1.0.3 Version

Developer's Toolkit is a comprehensive browser companion for web developers. 

  ⚡ FEATURES:

  📊 OVERVIEW
  • Quick page diagnostics and meta info
  • Core Web Vitals snapshot
  • Technology detection

  🎨 CSS TOOLS
  • Live CSS inspector and editor
  • Box model visualizer
  • Grid/Flexbox debugger
  • Accessibility contrast checker
  • CSS statistics and unused styles

  🍪 COOKIE MANAGER
  • Full cookie matrix with editing
  • Privacy classification (Essential/Analytics/Marketing)
  • Personas for testing different user states
  • GDPR compliance checking
  • Third-party cookie spotlight

  📝 FORM TOOLS
  • Auto-fill with presets
  • Form validation tester
  • Endpoint analyzer

  🖼️ MEDIA TOOLS
  • Image inventory and optimization tips
  • Lazy loading audit
  • Alt text analyzer
  • Broken image finder

  ⚡ JS DEBUGGING
  • Console interceptor
  • Network request monitor
  • Event storm detector
  • Promise tracker
  • Error breakpoints

  🤖 AI ASSISTANT
  • Powered by OpenRouter
  • Ask questions about the page
  • Get code suggestions
  • Security analysis
  • Performance tips

  📈 PAGESPEED INSIGHTS
  • Mobile & Desktop analysis
  • Core Web Vitals breakdown
  • Performance recommendations

  🔧 MORE TOOLS
  • Security headers checker
  • Link analyzer
  • Color palette extractor
  • Page outline viewer
  • Meta tag inspector
  • W3C validators

  💡 REQUIRES:
  • OpenRouter API key for AI features (free tier available)
  • Optional: PageSpeed API key for unlimited requests

  🔒 PRIVACY:
  • No data collection
  • API keys stored locally
  • All analysis done client-side