DataWeave 2.1 is compatible with Mule 4.1. Standard Support for Mule 4.1 ended on November 2, 2020, and this version of Mule will reach its End of Life on November 2, 2022, when Extended Support ends.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

toBase64(Binary): String

Transforms a binary value to a Base64 string.


Name Description


The binary value to transform.


This example transforms a binary to Base64.


%dw 2.0
import * from dw::core::Binaries
var myBinary = "Mule" as Binary
output application/json
{ "BinaryToBase64" : toBase64(myBinary) }


 { "BinaryToBase64": "TXVsZQ==" }

Was this article helpful?

💙 Thanks for your feedback!

Edit on GitHub