Aerate for macOS - Ridiculously good lossless image compression
remove.bg - Remove the background of any image 100% automatically
Polarr 2.0a - An online photo editor (big data meets Lightroom)
Removal.ai - Create transparent background for any image using Removal.ai - The fastest, easy-to-use & free tool to automatically remove backgrounds online.
Acorn - Acorn is a photo editor built for the rest of us.
Icons8 Background Remover - Quickly remove the background from any photo