Base64 Encoder / Decoder

Encode text or a file to Base64, or decode a Base64 string back to text — all in your browser.

Text

Base64

Ad space — always below the tool, never inside it

How to use base64 encoder / decoder

1Type or paste textThe Base64 box updates as you type.

2Or encode a fileChoose a file instead to see it encoded as Base64, with an image preview if it's an image.

3Or decodePaste a Base64 string into the right box to see the original text.

Yes — paste it in and, if it decodes to an image type, a preview appears below the box.

No — all encoding and decoding happens entirely in your browser.