Converting PNG to PPM produces an uncompressed RGB dump useful for academic image processing, scientific pipelines, or debugging custom imaging code. The format strips everything except raw pixel data and a trivial text header.
Drag & drop image files here, or browse
Drop your PNG files here
PPM is lossless for the RGB channels but has no alpha support; transparency from the PNG is discarded. Files are enormous because nothing is compressed. For scientific use, these properties are features; for anything else they're drawbacks.
PPM is supported by ImageMagick, GIMP, feh, and all Netpbm tools. Most consumer viewers don't handle it. Use PPM only when a specific pipeline or tool requires it.
PNG is a lossless image format designed to replace GIF. It uses DEFLATE compression, supports an 8-bit alpha channel for full transparency, and preserves every pixel exactly. PNG excels at images with sharp edges, large flat-color regions, text, UI screenshots, and anything you'll re-edit.
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.
No. PPM stores only RGB channels, no alpha. Transparent regions become whatever RGB color they had, typically black or the matte color, depending on encoder.
PPM has zero compression. Every pixel is stored as three raw bytes after a tiny header. The tradeoff is that PPM is the simplest possible format to parse programmatically.
PNG is a lossless image format designed to replace GIF. It uses DEFLATE compression, supports an 8-bit alpha channel for full transparency, and preserves every pixel exactly. PNG excels at images with sharp edges, large flat-color regions, text, UI screenshots, and anything you'll re-edit.
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.