What is a PNM file?
PNM (Portable Anymap) is a family of simple image formats that includes PBM (bitmap), PGM (graymap), and PPM (pixmap). A PNM file can be any one of these types.
It is designed to be easily exchanged between different platforms. Our Online PNM Viewer automatically detects the specific format and displays the image correctly.
How to View PNM Files Online
Upload PNM
Drag and drop your .pnm file into the viewer.
Detect
The tool identifies if it's a bitmap, graymap, or pixmap.
View & Save
View the image and download it as a standard PNG.
Frequently Asked Questions
What formats does PNM cover?
PNM is a collective name for PBM (black/white), PGM (grayscale), and PPM (color) formats.
How do I open a PNM file?
Since PNM is a raw format family, standard viewers might struggle. Use our online tool or software like ImageMagick.
Can I convert PNM to JPG?
Yes, you can easily convert any PNM file to a JPG or PNG using this viewer.