Base64 Encode/Decode
Encode files to Base64 or decode Base64 to files.
Drag & drop your files here
or click to browse your computer
Max 1 file · Up to 10MB each
Perfect Formatting
Layout, fonts, and images preserved
Fast Conversion
Server-side processing in seconds
Secure
Files auto-deleted after processing
Base64 encode & decode — free online converter
Encode files to Base64 or decode Base64 back to files online for free. Our Base64 tool converts any file into a Base64 string for embedding in code, data URIs, or APIs, and decodes strings back into downloadable files — instantly and with no signup.
It's a handy developer utility for working with images, config data, and text. Everything runs in your browser.
How to base64 encode/decode
- 1
Upload your file
Drag and drop your file into the box above, or click to browse and select it from your device.
- 2
Choose your options
Adjust the available settings to get exactly the result you need for base64 encode/decode.
- 3
Run the tool
Click the Base64 Encode/Decode button and our servers process your file in seconds.
- 4
Download the result
Save your finished file instantly. It's automatically deleted from our servers afterwards.
Why use our base64 encode/decode tool?
100% free
Base64 Encode/Decode is completely free with no hidden fees, sign-ups, or usage limits.
Fast & secure
Files are processed on secure servers over HTTPS and deleted automatically after a short time.
Works on any device
Runs in any modern browser on desktop, tablet, or mobile — nothing to download.
Base64 Encode/Decode — frequently asked questions
How do I encode a file to Base64?+
Upload your file and the tool instantly outputs its Base64 string, which you can copy and use in code or data URIs.
How do I decode Base64 to a file?+
Paste your Base64 string and the tool decodes it back into a downloadable file.
What is Base64 used for?+
Base64 encodes binary data as text so it can be embedded in HTML, CSS, JSON, and other text-based formats.
Is it free?+
Yes. The Base64 encoder and decoder is completely free with no signup.