I put this little tool online because it's sometimes useful for webmasters/surfers or it's a Frequently Asked Question.


Overview:
MIME base64 is a reversible algorithm, it can be used anytime binary or arbitrary data needs to be represented in common printable characters.

Example of use:
Base64 is needed in many places other than its original use as an encoding format for transferring attachments in email.

String to encode:

MIME base64 String to decode: