DevTools+ vs Web DevTools+

496 developer tools, ready on iPhone and iPad. DevTools+ puts everyday code utilities in one searchable app. Format JSON, test APIs, inspect regex, decode JWTs, encode Base64, generate UUIDs, convert timestamps, format SQL, and handle hundreds of other development tasks without jumping between random websites. FIND THE RIGHT TOOL FAST - Search all 496 tools across 29 categories - Pin favorites and reopen recent tools - Start with practical examples - Copy and share results - Keep supported history, snippets, and API work organized FORMAT AND CONVERT - JSON formatter, validator, minifier, tree view, sort, and escape - JSON to YAML, CSV, XML, TypeScript, and Java - XML, YAML, TOML, CSV, Markdown, SQL, and text utilities DECODE AND INSPECT - JWT decoder and analysis tools - Base64 encoder and decoder - URL, HTML, Unicode, hexadecimal, and character encoding tools - Hash, HMAC, password, certificate, header, and security helpers - Timestamp, timezone, cron, MIME type, port, and HTTP status references BUILD AND TEST - API tester and REST, GraphQL, cURL, header, and WebSocket helpers - Regex tester, match highlighter, replace, and reference tools - UUID, random data, mock payload, barcode, and QR generators - Git, CSS, React Native, testing, documentation, file, and log utilities LOCAL-FIRST BY DESIGN Most tools process directly on your device. Tools that need a network connection are clearly identified. Nothing you enter is sent anywhere unless the selected tool requires a network request. NO ACCOUNT REQUIRED Open the app and start working. A useful selection of tools is free. DevTools+ Pro unlocks the complete toolkit and removes ads. Built for developers, QA engineers, API testers, students, and technical teams who want a focused utility on their phone. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

- Elements: A powerful syntax-highlighted DOM inspector and editor allows you to edit any page. - CSS Quick tools: Disabled CSS, background images, outline overflow issues, z-index and more - CSS Overview: Get a detailed look into the CSS on the page, stylesheets, colors, fonts and media queries - Rendering Tests: Emulate vision deficiencies such as color blindness, blurred version. Hide images to evaluate structure and fallback UX. Disabled modern image file formats such as AVIF and JPEG XL to test fallback UX for other/older browsers - Media query tests: Emulate how the page looks with print styles, prefers color-scheme, and prefers-contrast media queries. - Network - View all the assets on a page, tap on one to see info such as MIME-type, file-size, transfer times, Source allows you to see code for text-based assets with syntax highlighting, copy to clipboard and format options - SEO & meta: See meta tags such as title, descriptions, icons, Open Graph tags including previews of the images - Storage: with options to view or delete cookies, localStorage and Session storage and a detailed Web Manifest viewer. - Detailed Device Info panel with UserAgent, display and screen resolution, network speeds, connection type, ISP and more. - Accessibility audits, info and debug tools (ARIA inspect and img alt inspect). - Tools: one-tap quick audits from 8 popular, free services (Lighthouse, HTTP Observatory, SSL Labs, Wave Web Accessibility etc). No need to login or register, it'll open a new tab with your audit right there!