Is Base64 Decoder free to use?

Yes, Base64 Decoder is completely free with no limits. It works entirely in your browser with no registration required.

Is my data secure when using Base64 Decoder?

Yes! All processing happens locally in your browser. No data is ever sent to any server, ensuring complete privacy.

Yes, once the page is loaded, this tool works completely offline without an internet connection.

Yes, the output follows industry standards and can be used in production applications.

Decode Base64 strings back to original text or binary content

Instant Results

100% Private

No Registration

Base64 String

Instant decoding

Full Unicode support

Binary data recovery

Validates Base64 format

Validates proper Base64 format

Handles missing padding gracefully

Supports URL-safe Base64 variants

Detects and reports malformed input

Decode the payload section of JSON Web Tokens to view claims.

Extract original binary data from Base64 encoded strings.

Decode Base64 encoded data from API responses.

Decode Base64 encoded cookie values for debugging.

Input

SGVsbG8gV29ybGQ=

Output

Hello World

Validates proper Base64 format

Your data stays in your browser

All processing happens locally. Nothing is sent to any server.