This small command line cwebp wrapper app converts image files to WebP files so RPG Maker MV can load them (It works with the same idea that the Opus converter tool works). WebP can provide smaller file size while having the same image quality. And (much like Opus) it is supported in most platforms as well. The tool implements both the lossless and lossy conversions as well.
It should be noted: The editor can’t read WebP (but it can encrypt them). So this tool should be used for deployment.
Download: itch.io
Source code is available on Github.
If you like this tool, why not give a donation via Ko-fi?
Studio ACE 