Tools
Utility Tools — QR, JSON, Regex, Image Converter
QR code generator, JSON formatter and validator, password generator, Base64 / URL encoder, regex tester, Markdown preview, image converter and compressor, text diff, character counter, Korean age, D-day, world clock, screenshot designer, team picker, and life timeline — fast utilities for the small chores of dev, work, and daily life.
16 tools in this category
Screenshot
Designer
World Clock
Pomodoro
Timer
Life Timeline
Generator
Character Counter
QR Code Generator
Team Picker
Age
Calculator
JSON
Formatter
Base64 & URL
Encoder/Decoder
Password
Generator
Markdown
Preview
Diff Checker
Regex Tester
Image
Converter
D-Day Calculator
Frequently asked questions
Q. Can I download the generated QR code?
Yes — generated QR codes can be saved as PNG.
Q. How is the password generator made secure?
Passwords are produced with the browser cryptographic random generator (crypto.getRandomValues) and never leave your device.
Q. Which regex engine does the tester use?
The built-in JavaScript RegExp engine, which follows ECMAScript regex syntax.
Q. Which image formats can the converter handle?
JPG, PNG, and WebP can be converted between each other and resized — all in your browser.
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