Skip to content
Encrypt-Decrypt

Base64URL Text Encoder

Encode UTF-8 text as URL-safe, unpadded Base64URL for tokens and identifiers. Runs entirely in your browser — input is never uploaded.

English
0 chars0 bytes
Output
Ready0 chars · 0 bytes
Processed locally. Your data never leaves this device.UTF-8 text ↔ Base64URL

ui.toolRouteContent.codec.base64url.howItWorks.heading

ui.toolRouteContent.codec.base64url.howItWorks.body

Base64URL is not encryption

Anyone can decode Base64URL without a key. Use AES when the input must stay confidential.

Frequently asked questions

A strict Base64 decoder will reject Base64URL output until the padding is restored and - / _ are converted back to + and /.