I built DemoSlice to solve a specific problem: interactive demo tools cost $20,000-$50,000/year and most teams use about 4 features. So I built a tool with just those 4 features at $29/month.

You upload screenshots, draw clickable hotspots, add text annotations, and publish a shareable link. The whole thing takes about 5 minutes.

The stack: React + Vite + TypeScript on the frontend, Cloudflare Workers for the API, R2 for image storage, D1 (SQLite) for the database, Clerk for auth. Everything runs on the edge so it's fast globally.

You can try the full editor without creating an account: https://demoslice.io/prototype

Free tier gives you 1 demo with 5 screenshots. Pro is $29/month for unlimited.

I'm a solo developer building this in public. Happy to answer questions about the tech, pricing, or anything else.