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40+ developer tools: JSON formatter, Base64/URL encoder, hash generator, JWT debugger, regex tester, and more DevTools - Your All-in-One Developer Toolkit Stop wasting time switching between different websites and tools. DevTools brings 40+ essential developer utilities right into your browser, available instantly with a single click. DevTools is a comprehensive offline toolkit that combines all the utilities developers use daily into one convenient Chrome extension. Whether you need to format JSON, encode Base64, generate passwords, or debug JWT tokens β it's all here, working entirely in your browser. β‘ Save Time No more bookmarking dozens of online tools. No more waiting for web pages to load. Everything you need is one click away, working instantly without any network requests. π 100% Private & Secure Unlike online tools, DevTools processes everything locally in your browser. Your code, API keys, tokens, and sensitive data never leave your computer. Perfect for working with confidential information. π΄ Works Offline Internet down? No problem. DevTools works completely offline. Use it on flights, in areas with poor connectivity, or anywhere you need to work without internet access. π― Developer-Focused Built by developers, for developers. Every tool is designed with real-world use cases in mind. Clean interface, fast performance, and keyboard-friendly design. What Can You Do With DevTools? Format messy JSON into readable, indented code Validate JSON syntax and catch errors instantly Beautify or minify HTML, CSS, JavaScript, XML, and SQL Encode & Decode Base64 encode/decode text and images URL encode/decode for safe query parameters HTML entity encode/decode for web content JWT token decode and inspection Generate Secure Values Create strong passwords with customizable rules Generate UUIDs and ULIDs in bulk Compute MD5, SHA-1, SHA-256, SHA-512 hashes Generate QR codes from any text or URL Convert Formats Compare texts and highlight differences Test regular expressions with live matching Preview Markdown rendering Convert text case (camelCase, snake_case, etc.) Sort, dedupe, and manipulate lines Developer Utilities Parse and explain cron expressions Convert cURL commands to code (Python, JavaScript, Go, PHP, Java) Generate code from JSON (TypeScript, Python, Swift, Go, Java) Decode X.509 certificates Convert SVG to CSS background Who Is This For? Frontend Developers - Format code, preview Markdown, convert HTML to JSX Backend Developers - Debug JWT tokens, parse cron, generate hashes Full-Stack Developers - Convert cURL to code, transform data formats DevOps Engineers - Decode certificates, parse timestamps, work with configs Anyone Who Codes - All the everyday tools in one place Features You'll Love β Dark and light themes for comfortable viewing β English and Chinese language support β Quick search to find any tool instantly β One-click copy for all outputs β Clean, modern interface with no clutter β Zero setup β works immediately after install DevTools is completely free with no hidden features, subscriptions, or accounts required. Install it once and have instant access to all 40+ tools forever.
DevScope β Developer Tools
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 β 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 β DOM inspection, CSS analysis, performance profiling, security scanning, accessibility audits, SEO checks, network monitoring, and more β all presented in a developer-friendly interface you can resize and dock while you work. β One purpose: on-demand technical inspection and diagnostics for the active webpage 𧩠16+ modules: DOM, CSS, Performance, Security, Accessibility, SEO, Network, Storage, and more π Privacy-first: 100% local, no tracking, no telemetry, no external servers * 𧩠DOM Analyzer β deep tree analysis, depth metrics, duplicate ID detection, anti-pattern hints * π¨ CSS Inspector β computed styles, specificity conflicts, layout diagnostics, live editing * π± Inspect Mode β click-to-select elements with breadcrumb navigation and highlight overlay * β‘ Performance Profiler β Core Web Vitals, paint timing, resource breakdown, long task detection * οΏ½οΏ½ Network Overview β requests by type/status, timing analysis, endpoint replay with editable params * π Security Scanner β HTTPS validation, security header audit, CSP inspection, mixed content * βΏ Accessibility Audit β WCAG checks, ARIA validation, contrast and landmark review * π SEO Analyzer β meta/Open Graph validation, structured data, heading hierarchy * π Storage Inspector β LocalStorage, SessionStorage, Cookies, IndexedDB, Cache API * π₯ Site Health Report β prioritized diagnostics (P0/P1/P2) with DX Score (0β100) * π¦ Bundle Analysis β script/CSS/image sizes, duplicate detection * π§ Framework Detection β React, Vue, Angular, Svelte, jQuery, Next.js, Nuxt.js, Tailwind CSS, Bootstrap with version info What DevScope Helps You Do 𧩠Analyze Page Structure Understand the DOM in depth β 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 β 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 (0β100) Catch accessibility issues before your users do. One-click prioritized diagnostics for the entire page. * P0 β Critical issues that need immediate attention * P1 β Important improvements worth addressing * P2 β Optimization opportunities for polish * DX Score (0β100) β 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) * β¨ Dockable layouts: Right, Bottom, and Floating modes * β‘ Resizable interface with developer-friendly ergonomics * π§ Shadow DOM isolation β minimal interference with inspected pages * π Keyboard shortcut: Ctrl+Shift+D to toggle * π Available in 16 languages * π¨ 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.
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 browserβyour data never leaves your device. Regular Updates: New tools and features added based on user feedback. Free Forever: No ads, subscriptions, or hidden costs. π οΈ 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. π― Extra Features: Pin Tools: Keep your most-used tools at the top for quick access. Hide Tools: Customize your interface by hiding tools you donβt 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. π₯ 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. π Get Started Today! Transform your browser into a professional development powerhouse. Install now and experience the ultimate toolkit for coding, debugging, and designingβall in one extension.
Network Ninja
Enhanced network request inspection with secure curl generation for Chrome DevTools π₯· Network Ninja - Advanced HTTP Request Inspector for Developers Stop manually sanitizing API requests! The secure network debugging tool that saves hours daily. π SOLVE YOUR BIGGEST DEBUGGING PAIN POINTS π Never Leak Credentials Again Auto-redacts Bearer tokens, API keys & auth headers when sharing requests. Share curl commands safely with your team. π€ AI-Optimized for ChatGPT & Claude Export requests with 80% fewer tokens. Get faster AI debugging without hitting token limits. π Full-Screen Request Analysis Expandable JSON trees, searchable response data, timing metrics - everything Chrome's network tab should be. π‘οΈ Enterprise Security 100% local processing. Zero external requests. Your sensitive data never leaves your browser. β Frontend Debugging - Inspect API calls, validate responses β Backend Testing - Export perfect curl commands for Postman β AI Development - LLM-ready request formats β Team Collaboration - Share requests without security risks "Finally, I can share API debugging info without worrying about exposing tokens. Also, the AI-optimized exports are a game-changer for AI debugging." - Rob G. 1. Install extension 2. Open DevTools β "Network Ninja" tab 3. Right-click any request for secure export options No setup required. Works with React, Vue, Angular, Node.js - any web framework. Perfect for: REST API testing, GraphQL debugging, webhook inspection, mobile app development, security-conscious teams.
SEO Analyzer Pro AI
AI-powered SEO analysis tool. Analyze and optimize your website's meta tags, titles, images and links. SEO Analyzer Pro AI is an advanced AI-powered SEO analysis tool designed to strengthen your website's search engine optimization. π Key Features: β’ Meta Tags Analysis & Optimization β’ Heading Structure & Hierarchy Check β’ Image Optimization & Alt Text Analysis β’ Internal & External Link Structure Evaluation β’ Social Media Meta Tags Verification β’ Broken Link Detection β’ Page Performance Metrics π― Perfect For: β’ Website Owners β’ Digital Marketers β’ Content Creators β’ SEO Specialists β’ Bloggers β’ E-commerce Sites π Improve Your SEO Performance: β’ Optimize Meta Descriptions & Titles β’ Enhance Content Structure β’ Fix Missing Alt Texts β’ Identify Broken Links β’ Optimize Social Sharing β’ Boost Search Rankings Start optimizing your website's SEO performance today with SEO Analyzer Pro AI - your intelligent SEO assistant!
