Base64

Encode or decode Base64

Turn text or files into Base64, and back.

Type or paste your text

Text

EncodeDecode

URL-safe (for web addresses)

Result

This all happens on your device. Nothing you type or add is sent anywhere. Check it yourself

Is my data sent anywhere?

No. Encoding happens in this tab, and the page's security policy blocks it from sending data anywhere. Safe for tokens and keys.

What is URL-safe Base64?

The same encoding with - and _ instead of + and /, and no = padding, so it can sit in a web address or a JWT.

Runs	In your browser. Your files stay on your device.
Engine	Your browser's built-in encoder
Text	UTF-8, so emoji and all languages work
Works offline	Yes, once the page has loaded
Licence	AGPL-3.0
Added	27 September 2026
Built by	Sapience Design
Source	tools/developer/base64