DevTools+ vs DEVtoy

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/

For those of you still writing code by hand (you're amazing), here's a free, offline-first toolbox for the small jobs that interrupt your flow. Pick a tool, paste your input, and get a result you can copy. DEVtoy includes 56 tools, grouped like this: DATA & FORMAT • JSON Format/Validate • XML Beautify/Minify • YAML to JSON • JSON to YAML • CSV to JSON • JSON to CSV • SQL Formatter • Color Converter • Number Base Converter • HTML Beautify/Minify • CSS Beautify/Minify • JS Beautify/Minify • TOML to JSON • JSON to TOML • JSON Lines Converter • JSON Schema Validator • JSONPath Tester • JSON Diff • JSON Flatten/Unflatten • XML to JSON • JSON to XML ENCODE / DECODE • Base64 String Encode/Decode • Base64 Image Encode/Decode • Base32 Encode/Decode • URL Encode/Decode • URL Parser • JWT Debugger • Hash Generator • UUID/ULID Generate/Decode • HTML Entity Encode/Decode • Backslash Escape/Unescape • Hex to ASCII • ASCII to Hex • Certificate Decoder (X.509) • Unix Time Converter WEB & TEXT • HTML Preview • Markdown Preview • HTML to Markdown • Text Diff Checker • Lorem Ipsum Generator • Password Generator • QR Code Reader/Generator • String Inspector • Unicode Inspector • String Case Converter • Line Sort/Dedupe • RegExp Tester • Cron Job Parser CODE & DEVOPS • HTML to JSX • SVG to React Component • SVG to CSS • cURL to Code • JSON to Code • Docker Run to Compose • Semver Range Checker • CIDR / Subnet Calculator The built-in tools process your input on your device and work without an internet connection. There's no account to create, and DEVtoy is free. If none of the tools quite fits, open Universal Tool, describe what you want done, and let Apple's Foundation Model help transform your input. It runs on your device, and is available on supported hardware with Apple Intelligence enabled on iOS 27, macOS 27, or visionOS 27 and later. Its output can be wrong, so give it a quick review before using it.