Favorites
Your saved tools (stored locally on this device).
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Tap the star on any tool to save it here.
Calculator
Evaluate basic arithmetic expressions locally.
math
Color Picker
Pick a color and convert between HEX/RGB/HSL.
designconvert
Password Generator
Generate strong passwords locally in your browser.
securityrandom
GCD / LCM
Compute the greatest common divisor and least common multiple.
math
Case Converter
Convert text casing (upper/lower/title/sentence).
text
JSON Prettify / Minify
Format or minify JSON locally.
textjson
Base64 Encode / Decode
Encode or decode Base64 locally.
textbase64
Week of the Year
Get ISO week number with start and end dates.
time
Time Zone Converter
Convert times and save favorite time zones.
timeconvert