Knallhart.dev Reviews — Discover what people think of this product.
knallhart.dev
Brutally honest AI website roasts for €10
Submit a URL, get an AI-generated roast with 3 specific, brutal issues and concrete fixes — delivered by email in minutes. No subscription, no dashboard.
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What does knallhart.dev help with?
Built knallhart.dev after years of having more honest opinions about client websites than I'd ever put in a formal proposal.
The AI takes a full-page screenshot of your site, analyzes it, and sends back 3 specific, brutally honest issues plus exactly how to fix each one — UX, design, structure. €10, one-time, no subscription.
Stack: Next.js, Playwright for screenshots, Gemini for analysis, Stripe, Resend.
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