How do I encode text to Base64?

Paste or type any text in the left panel. The Base64-encoded output appears instantly in the right panel. Click 'Copy Output' to copy the result or 'Load Example' to see a sample.

What is Base64 encoding?

Base64 encodes binary or text data as a sequence of 64 printable ASCII characters. It is commonly used for embedding images in HTML/CSS, email attachments (MIME), JWT tokens, and data URIs.

Is the Base64 encoder free?

Yes, completely free. The encoding runs entirely in your browser — no data is sent to any server, and no signup is required.

Base64 Encoder

Encode any text to Base64 instantly online. Free Base64 encoder with full UTF-8 and Unicode support. No signup required.

Text Input

Base64 Output

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How to Use the Base64 Encoder

Paste or type any text in the left panel.
The Base64-encoded output appears instantly in the right panel.
Click "Copy Output" to copy the result to your clipboard.
Use "Load Example" to see a sample encoding.
Click "Clear" to reset both panels.

What is Base64?

Base64 encodes binary data as ASCII text using 64 printable characters.
Commonly used to embed images, fonts, or files in HTML and CSS.
Used in JWT tokens, email attachments (MIME), and data URIs.
Full UTF-8 support — encodes any Unicode text correctly.