Web Tools Collection
A collection of useful online tools for developers and everyday tasks
Text Tools
Unicode Encoding
Unicode encoder and decoder online
UTF-8 Converter
UTF-8 encoder and decoder online
Encoding Converter
Convert text and CSV encoding, including Shift_JIS, GBK, Big5, EUC-KR, and UTF-8
BASE64
Decode and encode Base64 online
MD5 Generator
Generate MD5 hashes online
URL Encoding/Decoding
Encode and decode text for use in URLs
Data Tools
JSON/JSON5 Formatter
Format, validate, beautify, and minify JSON, JSON5, and JSONC with comments
URL Parameters Parser
Extract and analyze parameters from URLs
JSON ↔ TOON Converter
Convert JSON to TOON format to save LLM tokens
XML Validator
Validate, format, and minify XML online. Free XML syntax checker with instant error detection.
Web Tools
Password Generator
Generate strong random passwords instantly
Unix Timestamp
Convert between Unix timestamps and human-readable dates
Percentage Change
Calculate percentage increase or decrease
UUID Validator
Validate and check UUID format, version, and structure. Free online UUID validator tool.
Random Number Generator
Generate random numbers with configurable precision, range, and quantity. Uses cryptographically secure randomness.
Pantone to RGB Converter
Convert Pantone colors to RGB, HEX, and HSL. Includes color preview, reference table, and HEX to Pantone matching.