File Base64 Converter

Convert File to Base64

Select File

Base64 Encoding

Include Data URI Prefix (data:{mime-type};base64,)

Base64 to File

Base64 Encoding

File Name If left blank, the name will be auto-extracted from the Data URI or a default name will be used

About File Base64 Encoding:

Base64 encoding converts any binary file into plain text format, making it easier to transmit file data over text-based protocols. This method is commonly used for email attachments, embedding web resources, API data transfer, and more.

Instructions:

File to Base64:Select any file to automatically convert it to Base64 encoding. Export as a text file is supported.
Base64 to File:Paste Base64 encoded data, specify a file name, and download the restored file.
Data URI:Optionally include MIME type in Data URI format, suitable for direct use in HTML/CSS.
Notes:Base64 encoding increases file size to about 133% of the original. Encoding large files may take some time.