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
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 conversionsTo
Truevision Targa
A long-standing format for game textures, video frames and image editing. It carries transparency and is simple enough that almost any graphics tool opens it.
All TGA conversions