Free online tools
Unit Converters
Explore 11 Unit Converters tools and finish common tasks quickly in your browser.
Lunar Calendar Converter
Convert between Gregorian and Chinese Lunar dates (1901–2100) with Ganzhi year, zodiac, and leap month info.
Chinese Capital Amount Converter
Convert numbers into formal Chinese capital amounts for cheques and receipts, or parse them back into digits.
ROC Year Converter
Convert a year between Taiwan ROC (Minguo) and Gregorian calendars, e.g. ROC 115 = 2026.
Number Base Converter (Binary / Octal / Decimal / Hex)
Instantly convert large numbers between Binary, Octal, Decimal, and Hexadecimal with a hacker-style matrix rain effect.
Length & Distance Converter (Metric / Imperial / Taiwanese)
Convert between meters, centimeters, kilometers, inches, feet, yards, miles, and Taiwanese foot in real-time.
Weight & Mass Converter (kg / lb / Taiwanese Catty)
Convert between kilograms, grams, metric tons, pounds, ounces, and Taiwanese Catty/Liang in real-time.
Area & Land Converter (㎡ / Ping / Hectare / Jia)
Convert between square meters, Taiwanese Pings, hectares, Jia, square kilometers, and square feet in real-time.
Temperature Converter (Celsius / Fahrenheit / Kelvin)
Accurately convert between Celsius, Fahrenheit, and Kelvin with animated alpaca temperature sensor effects.
Data Storage & Bandwidth Converter (B/KB/MB/GB/TB/Mbps)
Convert B, KB, MB, GB, TB and PB instantly (binary, 1 KB = 1024 B) and switch network speeds between bps, Mbps and Gbps, all in your browser.
Gamepad & Controller Online Tester (Beta)
Test your gaming controllers (Xbox, PS5, Switch) instantly using HTML5 Gamepad API with button feedback and drift checkers.
Premium World Clock & Timezone Tracker
Elegant SVG analog and digital clocks with dynamic day/night gradients and relative offset helper.
