spark.

Most startup ideas die in the wrong place — inside a founder's head, or in a Notion doc that never sees daylight. You spend weeks refining the concept, building the MVP, maybe even launching — only to find out nobody actually wanted it. spark. flips that. Describe your idea in plain English, and we generate a live, public landing page in under 60 seconds. No code. No design. No setup. Just a real page that collects real email signups from real strangers. That last part matters. Not your friends. Not your Twitter followers who are too polite to ignore you. Strangers — people with no social obligation to be nice — who either give you their email or don't. That gap between "my network thinks it's a great idea" and "14 people I've never met signed up" is where most founders get their first honest signal. Here's how it works: Describe your idea in a few sentences spark. builds a conversion-optimized landing page instantly You share it wherever your target audience actually hangs out Real signups come in over 7 days Unlock an AI verdict — conversion rate, who signed up, and a clear recommendation: double down, pivot, or kill it The AI analysis doesn't just tell you if it worked. It tells you why, and what to do next. Who it's for: Founders who want to validate before they build. Side-project builders who've been burned before. Anyone sitting on an idea and wondering if it's worth the next 6 months of their life. If the page converts, you have evidence. If it doesn't, you saved months of building something nobody wanted. Either way, you know — and that's the whole point. Try it at usespark.net