Tool categories
Utility
7 tools
Kinship Calculator
Trace a relative chain and find common Chinese kinship terms.
OpenUnit Converter
Convert length, weight, time, speed, data storage, and more.
OpenHandheld Banner
Show scrolling or still text fullscreen with adjustable speed.
OpenCurrency Converter
Convert common currencies using reference rates.
OpenSize Conversion Chart
Compare regional clothing, pants, and shoe sizes.
OpenDrawing Board
A lightweight canvas for touch, stylus, and mouse input.
OpenScoreboard
Keep scores for two to four teams.
Open