Base64 Encoder/Decoder

Base64 is an encoding scheme that converts binary data into a text string using 64 printable ASCII characters. It is commonly used to embed images in HTML/CSS, encode email attachments, and pass data in URLs or JSON.

Paste your text into the input field, select 'Encode', and the Base64 output appears instantly. You can then copy it with one click.

Paste the Base64 string into the input field, select 'Decode', and the original text is shown immediately.

No. Base64 is encoding, not encryption. Anyone can decode a Base64 string without a key. Do not use Base64 to secure sensitive data.

Yes. All encoding and decoding happens entirely in your browser using JavaScript. Your data is never sent to any server.