Calculate, Generate, Convert

Free tools that run in your browser: random string, UUID and QR code generators, a Base64 encoder/decoder and device info.

What would you like to calculate, convert or generate?

Random String Generator Generate
Generates secure random strings from an alphabet of your choice.
Base64 Encode/Decode Convert
Encodes text as UTF-8 Base64 and decodes Base64 to text.
UUID Generator Generate
Generates version 4 (random) UUIDs.
QR Code Generator Generate
Creates a QR code from text or a link.
Device Info Calculate
Shows screen, window and viewport measurements.