How to Convert Multiple FITS Images to GLB?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. Need edits? Resize, rotate, or add watermarks during conversion.
2. Load your FITS files
Add FITS files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.
3. Select GLB as output format
Select GLB from the output format list and set your destination folder. You can also adjust quality and compression settings.
4. Start FITS to GLB conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.
When finished, your new .glb files will be waiting in the destination folder.
How FITS and GLB differ in practice
FITS is made of pixels and GLB is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a GLB container, and that determines whether a CAD or design tool can work with it. One FITS file can hold several pages or frames, while GLB holds one image each. reaConverter writes a separate output file per page and numbers them, so a single input can produce a whole folder of results.
