Anbernic RG 34XX & RG CubeXX MuOS Theme Converter

Convert your themes to 3:2 or 1:1 aspect ratio

This tool converts MuOS themes for Anbernic RG34XX (720×480) or RG CUBEXX (720×720) while preserving original files.

Select your device:

RG34XX

720×480 (3:2)

RG CUBEXX

720×720 (1:1)

📁

Drag & drop your .muxthm files here

or click to browse (multiple files supported)

Choose image conversion method:

Zoom Fill the entire frame, may crop parts of the image Crop Crop from center to fit the new aspect ratio Fit Fit entire image, may add black bars

Upload a theme file to see preview

Preview shows how your theme will look on the selected device.

Processing: 0%

Conversion Log:

Your theme has been successfully converted!