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
Bitmap
Stores every pixel uncompressed — simple and readable by old Windows software, but large. Transparency is not supported.
All BMP 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