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Advanced developer tools for analyzing, inspecting, and debugging web pages directly in your browser. DevScope is a professional browser developer tool that goes beyond standard DevTools — providing real-time structural analysis, performance profiling, and comprehensive diagnostics in a clean, dockable panel. Debugging shouldn't mean jumping between scattered panels, losing context, or running external tools. DevScope brings 16+ analysis modules into a single extension — DOM inspection, CSS analysis, performance profiling, security scanning, accessibility audits, SEO checks, network monitoring, and more — all presented in a developer-friendly interface you can resize and dock while you work. ✅ One purpose: on-demand technical inspection and diagnostics for the active webpage 🧩 16+ modules: DOM, CSS, Performance, Security, Accessibility, SEO, Network, Storage, and more 🔒 Privacy-first: 100% local, no tracking, no telemetry, no external servers * 🧩 DOM Analyzer — deep tree analysis, depth metrics, duplicate ID detection, anti-pattern hints * 🎨 CSS Inspector — computed styles, specificity conflicts, layout diagnostics, live editing * 🖱 Inspect Mode — click-to-select elements with breadcrumb navigation and highlight overlay * ⚡ Performance Profiler — Core Web Vitals, paint timing, resource breakdown, long task detection * �� Network Overview — requests by type/status, timing analysis, endpoint replay with editable params * 🔐 Security Scanner — HTTPS validation, security header audit, CSP inspection, mixed content * ♿ Accessibility Audit — WCAG checks, ARIA validation, contrast and landmark review * 🔎 SEO Analyzer — meta/Open Graph validation, structured data, heading hierarchy * 🗂 Storage Inspector — LocalStorage, SessionStorage, Cookies, IndexedDB, Cache API * 🏥 Site Health Report — prioritized diagnostics (P0/P1/P2) with DX Score (0–100) * 📦 Bundle Analysis — script/CSS/image sizes, duplicate detection * 🧠 Framework Detection — React, Vue, Angular, Svelte, jQuery, Next.js, Nuxt.js, Tailwind CSS, Bootstrap with version info What DevScope Helps You Do 🧩 Analyze Page Structure Understand the DOM in depth — complexity, semantic quality, and potential issues. * Deep DOM tree analysis with depth and complexity metrics * Duplicate ID detection and orphaned node identification * Inline style detection and semantic structure checks * Anti-pattern detection with actionable improvement hints * Computed styles showing what actually applies * Specificity conflict detection * Layout diagnostics with box model insights * Live editing with instant updates and per-property reset Identify what's slowing down the page — and where to focus. * Core Web Vitals overview at a glance * Paint and render timing signals * Resource timing breakdown by type * Long task detection and JavaScript execution metrics Check how well the page protects its visitors. * HTTPS validation and mixed content detection * Security header audit: HSTS, CSP, Permissions-Policy, X-Frame-Options * Per-header status with actionable recommendations * Security Posture Score (0–100) Catch accessibility issues before your users do. One-click prioritized diagnostics for the entire page. * P0 — Critical issues that need immediate attention * P1 — Important improvements worth addressing * P2 — Optimization opportunities for polish * DX Score (0–100) — unified technical health metric Save and share your findings in developer-friendly formats. * Export reports in JSON, CSV, or Markdown * Snapshot & comparison workflow for regression testing * Per-module export for focused analysis Designed for Clarity (Not Feature Bloat) * ✨ Dockable layouts: Right, Bottom, and Floating modes * ⚡ Resizable interface with developer-friendly ergonomics * 🧠 Shadow DOM isolation — minimal interference with inspected pages * 🔁 Keyboard shortcut: Ctrl+Shift+D to toggle * 🌍 Available in 16 languages * 🎨 Dark / Light themes with system sync * collect personal data * track your browsing behavior * run analytics or telemetry * contact any external servers It works entirely locally in your browser. All analysis is performed on-device. User preferences are stored in `chrome.storage.local` and never leave your machine.
CSS Stats
Analyze CSS from any page - including localhost and authenticated sites CSS Stats - Analyze and visualize your CSS What It Does CSS Stats is a fun browser extension that extracts and analyzes all styles from the current page you're viewing. With one click, you get comprehensive insights into: Colors - See every color with usage and accessibility stats Typography - Font families, sizes, weights, and line heights across your site Spacing & Layout - Padding, margins, grid configurations, and responsive breakpoints Selectors & Specificity - Understand selector complexity and potential refactoring opportunities File Size Analysis - Original, minified, and gzipped sizes with compression insights CSS Variables - Track custom properties and their usage patterns Animations & Transitions - Catalog all animations and timing functions Shadows & Borders - Visual inventory of box-shadows, text-shadows, and border styles Why You Need It 🔒 Works Everywhere Unlike web-based CSS analyzers that can only access public URLs, this extension works on: Authenticated pages - Analyze your logged-in dashboards, admin panels, and private apps Localhost - Perfect for analyzing sites during development 🚀 Lightning Fast No need to copy-paste CSS or configure anything. Just: Navigate to any webpage Click the CSS Stats icon Get instant, comprehensive analysis Results open automatically in a new tab 📊 Professional Insights Get the same analysis tools used by professional developers and designers: Identify refactoring opportunities with duplication analysis Find accessibility issues in color contrast Discover unused or redundant CSS patterns Export design tokens for design systems Compare CSS across different pages or versions 🎨 Perfect For Developers - Audit CSS quality, find optimization opportunities, debug specificity issues Designers - Extract design systems, document color palettes, analyze typography scales Performance Engineers - Identify CSS bloat, measure compression ratios, track file sizes QA Teams - Verify design consistency, check responsive breakpoints, validate implementations Students - Learn CSS best practices by analyzing real-world websites Comprehensive Analysis 50+ metrics covering every aspect of your CSS Visual graphs for specificity, ruleset sizes, and color usage Detailed breakdowns of properties and their values Historical tracking to see changes over time Beautiful Visualizations Color circle packing for palette overview Specificity graphs to identify problematic selectors Grid template previews for layout analysis Gradient showcases for visual effects Export & Share Download design tokens as CSS variables Share analysis results with team members Compare multiple pages side-by-side Track changes over time Privacy Focused CSS analysis happens on our secure servers No tracking or analytics on your browsing Only activated when you click the extension Open source and transparent The extension extracts all CSS from the current page (including external stylesheets and inline styles), sends it to the CSS Stats API for analysis, and opens a detailed report in a new tab. The entire process takes just seconds. Use Cases Before Refactoring - Understand your current CSS landscape before making changes Design System Audits - Verify consistency across your application Performance Optimization - Identify opportunities to reduce CSS file size Learning & Education - Study CSS patterns from popular websites Client Projects - Analyze existing sites before redesigns Code Reviews - Validate CSS quality and maintainability Install the extension and click the icon on any webpage. That's it! No configuration, no API keys, no setup required. Perfect for developers, designers, and anyone who works with CSS. Whether you're building a new site, maintaining an existing one, or just curious about how your favorite websites are styled, CSS Stats gives you the insights you need. Made by designers and developers, for designers and developers. CSS Stats is an open-source project dedicated to making CSS analysis accessible to everyone.
Network Request Analyzer
Analyzes the timing of all network requests on the current page 🚀 Network Request Analyzer – Gain Full Visibility into Web Requests! Network Request Analyzer is a powerful Chrome extension designed for developers, performance engineers, and data analysts. It provides real-time insights into all network requests on the current webpage, helping you optimize loading speed, troubleshoot performance bottlenecks, and improve overall web efficiency. 🔍 Key Features: ✅ Comprehensive Network Request Analysis – Capture and analyze all HTTP/HTTPS requests, including DNS lookup, TCP connection, TLS handshake, request wait time, and response time. ✅ AI-Powered Performance Insights – Get intelligent recommendations and optimization suggestions using advanced AI analysis of your network requests. ✅ Visualized Timing Breakdown – A clear timeline view helps you understand request concurrency, blocking points, and load sequences. ✅ Performance Bottleneck Detection – Identify slow requests and optimize resource loading order for a faster browsing experience. ✅ Multiple AI Providers Support – Configure your preferred AI model (OpenAI, Anthropic, Deepseek) for detailed performance analysis. ✅ Downloadable Reports – Generate and download comprehensive performance reports to share with your team. ✅ A Must-Have for Web Performance Optimization – Ideal for tuning CDN, lazy loading, prefetching, and other front-end performance strategies. ✅ Real-Time Monitoring Without DevTools – Get instant insights into network activity without opening Chrome Developer Tools, making analysis more efficient. 🎯 Why Install It? For Frontend/Backend Developers – Optimize API response times, debug latency issues, and enhance rendering performance with AI-suggested improvements. For SREs & DevOps Engineers – Analyze network performance, detect slow queries, and eliminate network bottlenecks using intelligent pattern recognition. For Data Analysts – Understand the loading sequence of different resources and refine data transmission strategies with AI-driven recommendations. For General Users – Monitor page load speeds and identify slow resources that affect browsing experience. 📥 Install Now & Take Control of Your Web Performance! With Network Request Analyzer, you can effortlessly inspect all network requests with detailed timing data and get AI-powered optimization insights—making web performance tuning easier and more intuitive!
Dev Tools - Web Dev Tools Suite
Streamline your workflow with a powerful, all-in-one browser extension designed for developers, designers, and tech professionals. Access 40+ premium tools directly from your browser, all optimized for speed, privacy, and productivity. Comprehensive Toolset: Everything you need for coding, debugging, testing, and designing in one place. Offline Functionality: All tools work seamlessly without an internet connection, ensuring privacy and speed. Customizable Interface: Pin your favorite tools for quick access or hide unused ones to declutter your workspace. Modern Design: Intuitive UI with light/dark themes for a comfortable user experience. Privacy-First: All processing happens locally in your browser—your data never leaves your device. Regular Updates: New tools and features added based on user feedback. Free Forever: No ads, subscriptions, or hidden costs. 🛠️ Tools Included: Code Formatter: Beautify and format code with syntax highlighting. Code Snippets: Save and organize reusable code snippets. Minifier/Beautifier: Compress or beautify JavaScript, CSS, and HTML. Regex Tester: Test regular expressions with live highlighting. Diff Checker: Compare texts and highlight differences. HTML Previewer: Live preview HTML with CSS (JavaScript disabled). API & Network Tools: API Tester: Test REST APIs with various HTTP methods. WebSocket Tester: Test WebSocket connections. Speed Tester: Measure network speed and latency. Network Speed Monitor: Monitor real-time network speed. Data Tools: JWT Decoder: Decode and verify JWT tokens. Base64 Encoder/Decoder: Encode/decode Base64 strings. Hash Generator: Generate MD5, SHA-1, SHA-256, and other hash digests. UUID Generator: Generate unique identifiers. Utility Tools: Calculator: Basic and programmer calculator. Unit Converter: Convert between different units (length, weight, temperature, etc.). Timestamp Converter: Convert Unix timestamps. QR Code Generator: Generate QR codes from text. Password Generator: Create secure passwords. Lorem Ipsum Generator: Generate placeholder text for layouts. Page Performance: Analyze webpage performance metrics. SEO Analyzer: Analyze webpage SEO and accessibility. Meta Tags Manager: Generate and analyze HTML meta tags. Visual Tools: Color Picker: Pick colors from webpages. CSS Grid Generator: Create CSS grid layouts visually. Flexbox Generator: Learn and generate flexbox layouts interactively. CSS Extractor: Extract CSS from selected webpage elements. Viewport Measure: Measure pixel distances and dimensions on webpages. Element Inspector: Advanced element inspection with detailed properties. Storage Tools: Cookies Manager: View, edit, and manage browser cookies. LocalStorage Manager: Manage browser local storage data. SessionStorage Manager: Manage browser session storage data. IndexedDB Explorer: Browse and manage IndexedDB databases. Storage Analyzer: Analyze storage usage across all browser storage types. 🎯 Extra Features: Pin Tools: Keep your most-used tools at the top for quick access. Hide Tools: Customize your interface by hiding tools you don’t use. Search Functionality: Quickly find tools using the built-in search bar. Keyboard Shortcuts: Access tools faster with configurable shortcuts. Export Options: Save results or configurations directly to your local storage. 🔥 Why Choose This Extension? Designed for Developers: Tailored for frontend/backend developers, designers, DevOps engineers, and students. Boost Productivity: Eliminate repetitive tasks with one-click solutions. Chrome Guidelines Compliant: Fully adheres to Chrome Web Store policies for security and performance. 🚀 Get Started Today! Transform your browser into a professional development powerhouse. Install now and experience the ultimate toolkit for coding, debugging, and designing—all in one extension.
UI Inspector - Visual CSS Editor
Inspect and visually edit elements and their CSS directly on the page for faster design and UI debugging. A Visual CSS Editor for the Browser Elevate your web development and design workflow with UI Inspector, a powerful Chrome extension that lets you inspect, edit, and style any web page visually and in real-time. Skip the hassle of diving into DevTools and make instant adjustments directly on the page. With UI Inspector, you can: - Inspect elements — activate the extension and click on any element to view its attributes. - Edit attributes — modify styles in the visual editor and see changes in real time. - Control typography — adjust font family, size, weight, line height, and letter spacing. - Configure layout and spacing — set margins, paddings, display properties, and alignment. - Enhance backgrounds and shadows — apply custom colors, gradients, background blurs, and shadow effects. - Customize borders — adjust border width, style, color, and radius. - Fine-tune appearance — control opacity, blend modes, and transforms like rotation. - View all changes — see a list of every element you've updated in one place. - Copy CSS — view and copy the compiled CSS of your changes instantly. Unlock UI Inspector PRO and: - Apply changes globally — use the sensitivity slider to automatically apply style changes to similar elements across the page. - Style presets — save any element as a reusable preset and apply it across any website with a single click. - Export as Tailwind, SCSS, or JSX — copy your changes in the code format your project needs. - Export screenshots — capture high-resolution PNG screenshots of individual styled elements. - Export to GitHub — generate a GitHub issue with your design changes compiled to CSS. Who Is UI Inspector For? Web Developers: - Accelerate front-end development: quickly identify and fix layout or styling issues by editing elements on the fly. - Simplify CSS debugging: bypass DevTools with an intuitive, visual editor. - Export production-ready code: copy changes as CSS, Tailwind, SCSS, or JSX directly into your codebase. Web Designers: - Real-time design validation: adjust and perfect designs in the browser to ensure pixel-perfect implementation. - Bridge design and development: collaborate more effectively by directly tweaking live pages. - Save and reuse presets: build a library of reusable styles and apply them consistently across projects. 1. Activate the Extension: click the UI Inspector icon in your browser toolbar or press Alt/Option + Shift + I. 2. Inspect and Edit Elements: hover over any element to select it and instantly view its adjustable styles. 3. Modify Styles Visually: use the intuitive interface to change typography, layout, spacing, backgrounds, borders, shadows, and more. 4. Save and Apply Presets: create style presets for consistent design and apply them to any element on any site. 5. Export and Share: copy CSS in multiple formats, capture screenshots, or export changes as a GitHub issue. Compatible with any Chromium browser that supports the Side Panel API. For best results, ensure your browser supports all required APIs. If installation issues arise, update your browser to the latest version and try again.
