Decode a base64 encoded string - REST API Reference

You can decode base64 encoded strings using REST API. In this section we will describe each option to pass the base64 encoded text to our Base64 decoder.

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Decode base64 encoded string as "text/plain"

To decode some textual data encoded as a base64 string, please set the "content-type" header to "text/plain". An example request would look like this:

[HTTP POST] https://api.thebase64.com/decode?secret=your_secret
Content-Type: text/plain

VGhpcyBpcyBzb21lIHRleHQgdG8gYmUgZW5jb2RlZCBhcyBiYXNlNjQgc3RyaW5n

Request Payload

Your request body should contain base64 encoded string that you want to decode

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Decode base64 encoded text using JSON

To decode a base64 encoded text using JSON, please set the "content-type" header to "application/json". An example request would look like this:

[HTTP POST] https://api.thebase64.com/decode?secret=your_secret
Content-Type: application/json
{
    "Data": "VGhpcyBpcyBzb21lIHRleHQgdG8gYmUgZW5jb2RlZCBhcyBiYXNlNjQgc3RyaW5n"
}

Request Payload

Data string
The base64 encoded text that you want to decode