B64 Base64 Decode

Decode a Base64 string to it's original ASCII value.

What is Base64?

Base64 is a form of encoding used to transform any set of characters into an ASCII text format. More info on Wikipedia.

For what is Base64 encoding used for?

It is primarily used for safe transfer of binary data( images, audio, videos ) in web pages and email attachments. It may also be used in database storage. The downside is that it increases data size by around 30%.

How does Base64 text look like?

The encoded Base64 version of the text "Hello!" will look like "SGVsbG8h". Try it out!

I have a regular text. How can I convert it to Base64?

You can use the Base64 Encoder to convert normal text to it's encoded variant.

Is there a JavaScript alternative to Base64 decoding?

Yes, there is. You can use window.atob(); to convert a Base64 string to text. Take note that atob() is available from Internet Explorer 10 upwords. Check Mozilla for additional browser compatibility information.