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
Portable GrayMap
The Netpbm grey-scale format — one channel, uncompressed. Colour information is discarded, not converted.
All PGM conversionsTo
Web Picture
The modern web format: usually 25–35% smaller than JPG or PNG at the same quality, with transparency and animation supported. Older desktop software may not open it.
All WEBP conversions