Diffgram is described as 'Operating System for Visual Deep Learning'. There are eight alternatives to Diffgram for SaaS, Online / Web-based, Self-Hosted solutions, Mac and Windows. The best alternative is Supervisely, which is free. Other great apps like Diffgram are Label Box (Paid), HyperLabel (Free Personal), Segments.ai (Paid) and Heartex (Paid).
Supervisely helps people with and without machine learning expertise to create state-of-the-art computer vision applications. We care about entire workflow from raw data to building and deploying neural networks for your special task without coding.