Does it support binary files?

Yes. The file encoding section reads any file as a binary buffer and produces a full data URI including the MIME type prefix, suitable for use in HTML src attributes or CSS url().

What is Base64 used for?

Base64 is used to embed binary data (images, fonts, files) in text-based formats like HTML, CSS, JSON, and email. It increases file size by approximately 33%.

Base64 Encoder / Decoder — Text and File to Base64

All tools › Base64 Encoder / Decoder ● Live Developer Tools

Plain text input

Base64 output

Encode a file

Drop or select any file to get its base64 data URI.

Plain text input

Base64 output

Encode a file

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