Hi Product Hunt community! 👋 I’m Mehedi, the maker of SynthTest AI. The Problem: As a marketer/founder, I’ve lost count of how many times I launched an ad campaign only to see zero clicks and burned budget. Traditional human focus groups take weeks and cost a fortune. By the time you realize the messaging is off, the money is already gone. The Solution: I built SynthTest AI to be your instant, virtual focus group. Instead of guessing, you can now upload your ad copy, email subject line, or landing page, and get feedback from 10,000+ hyper-realistic AI personas (like "The Budget-Conscious Gen Z Student" or "The Time-Poor Corporate Manager") in just 30 seconds. It gives you a scorecard, word-level heatmaps, and auto-fix suggestions (e.g., "Changing the 3rd word in your headline will increase conversion by 40%"). Why I built this: I wanted to give indie hackers, small agencies, and solo founders the same "God-like" market insights that only big corporations with massive budgets used to have. We are currently in early access/beta. I would absolutely love to hear your honest feedback, roast my landing page, or hear what features you’d like to see next!

SynthTest AI

Test your ads with 10,000+ AI personas before you spend!

Test your ads with 10,000+ AI personas before you spend!