DevKitNow

Tools / Encode

Base64

Encode UTF-8 text as standard or URL-safe Base64, and decode it back. This is a text tool: it does not accept an arbitrary binary file.

Example: Short sentence

DevKitNow keeps this text in the browser.

A common error

A string whose length is not a multiple of 4, or bytes that are not UTF-8, is rejected instead of being shown as a broken character.

The editor runs in the browser after this page loads. Nothing you paste is uploaded unless you save a Pro project.