Base64 Decoder

Decode base64-encoded text into text or binary, using just your browser. View the decoded value or download it as a file. (You can use our client-side base64 encoder to try it out!)

This decoder works for both regular and URL-safe encodings.

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What is Base 64 Decoding?

Base64 is a way of representing binary data in an ASCII string.

‘Base64 decoding’ is the process of transforming a base64 representation — a string of odd-looking text — back into the original binary or text data.

Wikipedia has a good expalanation of what base64 encoding and decoding involves.

Load the base64 data to decode from a file, then press the ‘Decode’ button:

Browse:

Alternatively, type or paste in the text you want to base64–decode, then press the ‘Decode’ button.