I built an HTML-to-Image API as a solo dev

Hey IH!

I'm Özgür, solo dev from Turkey. I just launched RenderPix — an API that converts HTML/CSS to pixel-perfect images (PNG, JPEG, WebP).

The problem: Every dev building OG images, certificates, or invoices ends up wrestling with Puppeteer/Chromium. Self-hosting is painful, cold starts are slow, and it crashes under load.

The solution: One POST request with your HTML, get an image back in ~230ms. No infra to maintain.

Tech stack: Node.js, Fastify, Playwright, Chromium on a RackNerd VPS.

What I'd love to know:

• Would you use something like this?

• What's missing that would make you pay for it?

Try the live demo (no signup): https://renderpix.dev

Happy to answer any questions about the build, pricing, or growth strategy.