If you need to handle multiple files or integrate conversion into a workflow, several scripts and APIs are available:
The htf-rttex-unpacker is a simple script specifically built to extract PNGs from directories full of RTTEX files. rttex to png
Specifically designed for game assets, this Growtopia RTTEX uploader is frequently used by the community for extracting textures. 2. Developer & Scripting Tools If you need to handle multiple files or
The original precompiled RTPack.exe from the Proton SDK GitHub can be used, though it requires PVRTexLib in the same directory for certain compression types. Why Convert to PNG? htf-rttex-unpacker - GitHub You can then click the image to save it as a PNG
A popular choice where you simply upload the file, and the tool renders it onto a JavaScript canvas. You can then click the image to save it as a PNG .