Dev Tools

Dev Tools is the ultimate Swiss Army knife for developers. With 168+ utilities, format, encode, decode, convert, generate, and inspect data — 100% offline with zero server dependency.

**NEW: REST API Client** — Test APIs on the go with full HTTP method support, request history, collections, Postman & OpenAPI import, environment variables, and offline caching.

Whether you're testing endpoints, generating test data, formatting SQL, inspecting barcodes, or designing CSS — Dev Tools has you covered.

🚀 REST API CLIENT (NEW!)
• Full HTTP method support (GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS)
• Request history & collections management
• Postman collection import (v2.1.0 format)
• OpenAPI/Swagger import (3.0+ & 2.0 formats)
• Environment variables with {{variable}} substitution
• Response caching for offline operation
• OAuth2 authentication support
• Payload validation & error handling

🔧 FORMATTERS & MINIFIERS
• JSON Formatter / Minifier / Validator / Diff
• XML Formatter / Minifier / Validator
• SQL Formatter / Minifier
• HTML Beautifier / Minifier
• CSS Beautifier / Minifier / SCSS→CSS
• JavaScript Beautifier / Minifier
• JSON Path Extractor

🔐 ENCODERS & DECODERS
• Base64 Encoder / Decoder
• URL Encoder / Decoder
• HTML Entity Encoder / Decoder
• String Escape / Unescape
• GZip Compress / Decompress
• Hex ↔ Text, Binary ↔ Text
• Unicode Escape, Morse Code
• XOR Cipher
• JWT Decoder + Builder

🔄 CONVERTERS
• Number Base (binary, octal, decimal, hex)
• JSON ↔ YAML, JSON ↔ CSV, JSON ↔ XML
• JSON → Dart, TypeScript, Go, Kotlin, Python, C#
• Timestamp, Date Formatter, Date Difference
• Timezone Converter, Unix Time Now
• Unit Converter, Live Currency Converter
• Byte / Data Size, CSS Unit Converter
• Cron Parser + Generator
• URL Parser, Chmod Calculator
• ASCII Table, MIME Type Lookup
• CSV → Markdown, JSON Table Viewer

⚡ GENERATORS
• Hash (MD5, SHA-1/256/512) + HMAC
• UUID, NanoID, ULID
• Password + Passphrase + Strength Checker
• Username Generator
• Lorem Ipsum, Random Data, Random Number
• Random String, MAC Address
• QR Code (generate + scan), Barcode Generator
• Regex Generator

📝 TEXT TOOLS
• Text Case Converter (camelCase, snake_case, PascalCase…)
• Regex Tester, Text Diff, Text Analyzer
• Text Statistics (words, lines, read/speak time), Find & Replace
• List Compare, Number to Words
• Slug Generator, Markdown Preview, Markdown ↔ HTML
• Whitespace Remover, Text Trimmer, Text Reverse

🎨 GRAPHIC & CSS TOOLS
• Color Converter (HEX/RGB/HSL), Color Picker
• Color Palette Generator, Contrast Checker
• Gradient Generator, Box Shadow Generator
• Border Radius Generator, Box Model Debugger
• Grid Overlay Debugger, Typography Scale Generator
• SVG Viewer + Optimizer
• Image Converter, Resizer, Compressor, Cropper
• Image ↔ Base64, Pixel/Unit Converter

🌐 NETWORK & SYSTEM
• IP Subnet Calculator, IP Validator
• HTTP Status Codes, HTTP Headers Parser
• User Agent Parser
• Query String Parser + Builder

🔢 MATH & NUMBERS
• Scientific Calculator, Bitwise Calculator
• Percentage, Prime Checker, Factorial
• Fibonacci Generator, GCD, LCM

✅ KEY FEATURES
• 168+ tools, 100% offline capability
• REST API Client with Postman & OpenAPI import
• One-tap copy for all tool outputs
• Material 3 design with 10 color themes
• True Black (AMOLED) dark mode
• Favorites & Recent tools home dashboard
• Adjustable font size (80%–140%)
• Fast global search across all tools

Built with Flutter for a fast, responsive experience. Perfect for developers, designers, DevOps engineers, QA testers, and coders daily.

Have a tool request? Leave a review — we update regularly!