I know that there is this tool produced by mwfiae:

https://mwfiae.github.io/SbdConverter/

Here's the original post on Utopian with the links to the open source code.

https://steemit.com/utopian-io/@mwfiae/new-project-sbd-converter

I've never used the tool nor reviewed the code. I know that exyle is currently testing it.

Apparently you can also use the CLI (command line) wallet for the transaction.

I had a brief look for other tools / platforms with the option yesterday but didn't find anything.