Base64 is a method of converting binary data into text.
This is useful for when you need to store or transfer bytes using technology that only accepts text.
Other methods are available, such as hexidecimal encoding, in which each byte is represented as a
pair of characters from the hexidecimal alphabet (a-f, 0-9).
While hexadecimal is much easier for humans to read, it will double the size of the original data. Base64
will also increase the size of the data, but will only make it one third bigger.
This online tool will allow you to encode and decode Base64 data. It is completely client side and runs in the browser.