Text & encoding

Base64 to File

Turn a Base64 string into a downloadable file locally. Nothing you enter leaves your browser.

Paste Base64 Download filename MIME type (optional)

You can paste a Base64 data URL or a raw Base64 string.

Result

Your result will appear here.

Simple by design

Get the answer, without the clutter.

FormatCalc is built for quick work. This base64 to file runs entirely on your device, so private text and data stay private.

01

Choose a file or paste its Base64 data.

02

Transform it with one click.

03

Copy, use, or download your result.

Common questions

Using the Base64 to File

Is the Base64 to File free to use?

Yes. FormatCalc's Base64 to File is free to use with no account required.

Is my data private when I use the Base64 to File?

Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.

How do I use the Base64 to File?

Choose or paste your file data, then choose Prepare file. The conversion stays on your device.