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
Joint Photographic Experts Group
Compresses photos hard while still looking good, which is why almost every camera and website uses it. It cannot store transparency, and each re-save costs a little quality.
All JPG conversionsTo
Flexible Image Transport System
The standard format of astronomy, carrying scientific data alongside the image. Files are typically far larger than the same picture as PNG.
All FITS conversions