TL;DR: Automated image generation workflow — Schedule dynamic HTML → render pixel-perfect PNG/JPEG → post to Instagram automatically. Build with n8n and RenderPix HTML-to-image API . 80% cheaper than Bannerbear.

The Problem I Solved

Last month, I was building RenderPix — an HTML-to-image API . After launch, I dug into usage logs from my first customer and found something interesting:

They weren't generating OG images or PDFs like I expected. They were scheduling dynamic HTML renders on a repeating cycle — 1080×1350 PNG, every day, to feed a content calendar.

They were automating social media image generation.

That's when it clicked: developers use n8n and Make.com way more than I anticipated for visual automation.…