Convert PGM Portable Graymap images to PNG, JPG, WebP and more. Grayscale research format — convert free in your browser.
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PGM (Portable Graymap) is a simple grayscale image format from the Netpbm project, used in image processing research, medical imaging, and computer vision. PGM files can't be viewed in standard apps without conversion. PixelForge converts PGM to PNG, JPG, or any format in your browser.
PGM (Portable Graymap Format) stores grayscale images as plain text or binary values, with each pixel representing a shade of gray (0–255 for 8-bit, or 0–65535 for 16-bit). PGM is part of the Netpbm family alongside PBM and PPM. It is widely used in academic computer vision research, medical image processing, and image analysis where grayscale simplicity is beneficial.
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View grayscale data
PGM can't be opened in standard viewers. Convert to PNG or JPG to view grayscale image data.
Research output
Convert PGM output from image processing or computer vision algorithms to standard formats.
Medical imaging
Convert PGM medical image data to TIFF or PNG for wider compatibility.
File size
PGM is uncompressed. Convert to PNG for lossless compression at much smaller sizes.