PixelFed - PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.
Ramme - The Unofficial Open Source Instagram Desktop App
Gab - Gab is an ad-free social network dedicated to free speech.
Grids - Experience Instagram in beautiful ways on desktop
Friendica - Decentralisation - Privacy - Interoperability
Vurku - Download Instagram posts by username or hashtag