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
Digital Picture Exchange
A film and television format built for high bit depths on set and in post-production. Expect large files — DPX is uncompressed and aimed at cinema workflows, not the web.
All DPX conversionsTo
Quite OK Image
A deliberately simple modern lossless format designed to encode and decode extremely fast. It carries transparency and beats PNG on speed, though far less software opens it yet.
All QOI conversions