DataWeave 2.2 is compatible and bundled with Mule 4.2. Standard Support for Mule 4.2 ended on May 2, 2021, and this version of Mule will reach its End of Life on May 2, 2023, 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.

fromBase64(String): Binary

Transforms a Base64 string into a binary value.


Name Description


The Base64 string to transform.


This example takes a Base64 encoded string and transforms it into a binary value. This example assumes that the payload contains the Base64 string generated from an image in example toBase64.


%dw 2.0

import fromBase64 from dw::core::Binaries
output application/octet-stream


The output of this function is a binary value that represents the image generated in example toBase64.

Was this article helpful?

💙 Thanks for your feedback!

Edit on GitHub
Submit your feedback!
Share your thoughts to help us build the best documentation experience for you!
Take our latest survey!