SB2 to SWF converter

Quite a few years ago, I wrote a tool to port Scratch projects to SWF files and standalone applications. It is now obsolete and unsupported.


For any that still want it, here is the latest build and source code.
Converter v3.8 (Scratch v448)


Scratch is licensed under the GPL v2 and is open source. As a derived work, my code has the same license. I was also asked to include this message: Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab. See

what about the SB3 converter?

Try HTMLifier. My Scratch 3 converter was buggy and is no longer available.


Thank you to all the Scratch users, students, and teachers who made this converter surprisingly popular and sent me numerous kind emails. Keep creating awesome stuff!