How do I encode to Base64?

Paste your text in the left box and click Encode. The Base64-encoded result appears instantly on the right.

Is Base64 encoding secure?

Base64 is encoding, not encryption — it is easily reversible. Use it for data transport, not for protecting sensitive information.

Yes, paste your Base64 string on the right and click Decode to convert it back to plain text.

Free Base64 Encoder & Decoder Online

Plain Text

0 characters

Base64 Output

0 characters

Frequently asked questions

How do I encode Base64 online?

Type or paste your text into the "Plain Text" field, then click "Encode →". The Base64 encoded version will instantly appear in the "Base64 Output" field.

What is Base64 used for?

Base64 encodes binary data into text format, making it safe to transmit over text-only channels like email. It's commonly used for APIs, data URLs, email attachments, and authentication tokens.

Can I decode Base64 for free?

Yes! Simply paste your Base64 string into the "Base64 Output" field and click "← Decode" to instantly convert it back to plain text. Completely free with no size limits.