Converting JPG to PPM produces a raw, uncompressed RGB dump with a trivial text header. PPM is the format used when you need something every toy image-processing library can parse in under 20 lines of code: academic homework, pipeline debugging, simple ML preprocessing.
Drag & drop image files here, or browse
Drop your JPG files here
PPM files are gigantic because nothing is compressed. A 1920×1080 image takes about 6 MB as PPM versus 500 KB as JPG. Quality is identical to the JPG's decoded pixels: no gain, no further loss.
PPM is supported by ImageMagick, GIMP, feh, and every Netpbm-family tool. Most general-purpose viewers don't handle it, since it has almost no consumer presence. PPM lives in academia and Unix toolchains.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
PPM is a trivially simple uncompressed RGB format from the Netpbm suite. Each pixel is three bytes, prefixed by a tiny text header. Used in academic image processing, scientific computing pipelines, Linux kernel boot splashes, and as a debug format because anyone can write a parser in 20 lines.
Academic image processing courses, Netpbm utilities, ImageMagick internals, some scientific computing pipelines, and the Linux kernel's boot logo. It's not a consumer format.
PPM has no compression at all; every pixel is three raw bytes after a tiny text header. The format prioritizes parsing simplicity over file size.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
PPM is a trivially simple uncompressed RGB format from the Netpbm suite. Each pixel is three bytes, prefixed by a tiny text header. Used in academic image processing, scientific computing pipelines, Linux kernel boot splashes, and as a debug format because anyone can write a parser in 20 lines.
Yes. The converter runs entirely in your browser using WebAssembly. Your images are never uploaded, never sent to a server, and never leave your device.
There's no hard limit, but because everything runs in your browser you're bounded by available memory. Very large images (over a few hundred megapixels) can hit browser memory limits. Process in smaller batches if you run into issues.