Shuffle Lab
Small tools for curious minds
Developer tools, industrial testing, and everyday utilities
Developer Tools
JSON Formatter
Format, validate, and minify JSON
Base64 Encoder / Decoder
Encode and decode Base64 text
URL Encoder / Decoder
Encode and decode URL text
UUID Generator
Generate UUID v4 for development and testing
JWT Decoder
Decode JWT tokens into readable JSON
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes
Regex Tester
Test regular expressions on text
Timestamp Converter
Convert between Unix timestamps and readable dates
HTTP Status Lookup
Look up HTTP status codes and their meanings
Text Diff Checker
Compare two texts and find differences
JSON to CSV Converter
Convert JSON arrays into CSV instantly
CSV to JSON Converter
Convert CSV data into JSON instantly
Industrial & Testing
SCPI Simulator
Simulate SCPI commands and instrument responses
Modbus CRC Calculator
Calculate CRC16 (Modbus) and build RTU frames
Modbus Frame Builder
Build Modbus RTU request frames with CRC
HEX ↔ ASCII Converter
Convert between HEX bytes and ASCII text
Modbus Exception Decoder
Decode Modbus exception responses and error meanings
Modbus Response Parser
Parse Modbus RTU response frames and decode register values