Placid - Use Placid to auto-generate images, videos & PDFs from reusable templates
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Robolly - Auto‑personalize your open graph, social posts & more
Invision - Prototyping and collaboration for design teams
OG IMPACT - A free, open source API for generating social media images
Sketch - Professional digital design for Mac.