Collection of handy online development tools
DevCay
A collection of useful tools for developers and IT professionals.
Data Privacy
All operations run in your browser
Easy to Use
Clean and intuitive interface
Free Forever
No registration required
All Tools
All Tools →JSON Formatter Tool
Format and validate JSON data
QR Code Generator Tool
Generate QR codes from text or URLs
Date Time Converter Tool
Convert date and time between different formats
Encode / Decode / Encrypt Tool
Base64, URL encoding, Hash generation, and AES encryption in one place
Text Diff Tool
Compare two texts and find differences
Text Statistics Tool
Count characters, words, and lines in text
UUID Generator Tool
Generate unique identifiers (UUID)
Color Converter Tool
Convert colors between HEX, RGB, and HSL
JWT Decoder Tool
Decode and view JWT Token contents
CSV to JSON Tool
Convert CSV data to JSON format
YAML Formatter Tool
Format, validate, and minify YAML in your browser
XML ⇄ JSON Converter
Convert XML to JSON and JSON to XML online
Cron Expression Generator
Build and copy standard 5-field cron schedules
LinkedIn Text Formatter
Format LinkedIn posts with bold/italic Unicode styles