Flickr - image and video hosting website
CODIJY Pro Photo Colorization - Add colors to black & white photos and recolor images with surprizing ease!
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Myheritage In Color - Myheritage In Color is a best-in-class technological tool that has been designed for colorizing old photos.
PhotoPrism.app - PhotoPrism® is an AI-Powered Photos App for the Decentralized Web. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.
DeOldify - Open-source deep learning project for colorizing and restoring old images