I know scratchx source is open ( https://github.com/LLK/scratchx/ ).
I downloaded it and upload all to my web server.
The problem is when I press sprite library button, any items isn't shown.
Do you know how to install or compile scratchx source.

The costumes aren't stored in the ScratchX repository. You'll need to decompile the Scratch SWF, get the links to the assets, upload those to your server, and change the source code of your copy of ScratchX so as to set the URLs to the uploaded assets.

liam48D wrote:

The costumes aren't stored in the ScratchX repository. You'll need to decompile the Scratch SWF, get the links to the assets, upload those to your server, and change the source code of your copy of ScratchX so as to set the URLs to the uploaded assets.

That's a good idea. Thanks.