Smart & Fast Tools
For Your Daily Needs
Currency converter, unit converter, color picker, Base64, JWT decoder, and Korean specialized tools.
Trending Utility Apps
Most popular utility web tools selected by users
Real-time Global Currency Converter
Live exchange rates and automatic conversion powered by Open ExchangeRate-API.
Smart Unit Converter (Area, Length, Weight, Temp)
Instant real-time unit converter for length, area, weight, and temperature.
D-Day & Anniversary Calculator
Count days remaining or elapsed for exams, goals, and anniversaries.
Smart Color Picker & HEX/RGB/HSL Converter
Extract color codes and convert between HEX, RGB, HSL, and CMYK formats.
Base64 Encoder & Decoder (Bidirectional)
Real-time UTF-8 safe Base64 encoding and decoding tool for developers.
JWT Token Decoder & Verifier
Decode JSON Web Tokens (JWT), inspect headers, payload claims, and expiration.
Text Counter & String Inspector Tools
Count characters with/without spaces, byte sizes, line breaks, and convert cases.
Smart Dutch Pay & Split Bill Calculator
Flexible split bill calculator supporting multiple rounds (1st, 2nd, 3rd), custom participants per round, and minimal transaction summary.
Categories & Tools
Choose a web utility matching your purpose
Finance Calculators
Calculators for wage, social insurance, currency exchange, and finance.
Unit Converters
Convert length, area, weight, and temperature units.
Special Calculators
Calculators for D-day, anniversaries, age, and special dates.
Design & Graphics
Color picker, palette extractor, and HEX/RGB converters.
Text & String Tools
Character counter, byte calculator, and case converters.
Developer Tools
Base64 encoder/decoder, JWT decoder, and developer utilities.