Free Online RLE to PNM Converter

This is a format that applies an 8-bit encoding to images for the purpose of compression and transportation. The format was originally developed for the Utah Raster Toolkit software package for managing bitmaps. The compression algorithm provides a replacement for repeating strings of bytes into pairs, which significantly reduces the file size.

A bitmap image in the Portable Any Map format that was originally developed for processing and storing several types of monochrome and color images without compression as well as grayscale images. Bitmap graphics data in a PNM file are stored using ASCII or binary structure.