OrbConvert converts your image files online. Amongst many others, we support PNG, JPG, JPEG, WEBP, GIF, SVG and TIFF. You can use the options to control image resolution, quality and file size.
From
X BitMap
A plain-text image format that stores a bitmap as a C source array, historically for X11 cursors and icons. One bit per pixel, so it is black and white only.
All XBM conversionsTo
Portable BitMap
The Netpbm one-bit format: every pixel is black or white, with no greys and no colour. Useful for masks and line art, unusable for photographs.
All PBM conversions