I Built Testimonial Genius in 3 Days: Here's the Thought Process

Over the last few days, I built and launched TestimonialGenius.com , a simple AI-powered tool that turns raw customer testimonials into clean, categorized, marketing-ready quotes and insights.

It extracts themes, ranks the best quotes, tags sentiment, and outputs a beautiful branded PDF or CSV, all in seconds.

But this wasn't just another "AI wrapper." This was my experiment in what a micro-SaaS can be in 2025: fast to build, niche in scope, and useful from day one.

Where the Idea Came From

It started with a pattern I noticed across startups and agencies I've worked with: everyone has customer testimonials. Almost nobody actually uses them well.

They're scattered across Notion docs, Shopify exports, G2, or Google Reviews, just sitting there. But hidden in that mess are valuable patterns and high-converting quotes.

So I asked myself:

What if I could build a tool that makes use of those quotes automatic? What if I could turn unstructured praise into a marketing asset?

The Build Stack (AKA, "Let AI Build the AI Tool")

The stack came together surprisingly fast thanks to AI-native tools:

• Frontend: Next.js (generated mostly using V0.dev)
• Backend: FastAPI (Python)
• AI Engine: Gemini (for theme extraction, quote curation, sentiment tagging)
• Development flow: Cursor was a huge accelerator

Within 3 days, I had it out the door, deployed and live.

This build felt like a new way of working: idea to product in days, not months.

Thought Process Behind the Product

I used this framework to keep the scope focused:

• Problem: Businesses are sitting on testimonials they don't use.
• Promise: We'll turn them into clean, usable insights with no extra work.
• Outcome: Beautiful, AI-generated reports you can drop into a pitch deck, landing page, or email campaign.

What I didn't want was another "chat with your data" tool. I wanted opinionated UX, built for a single use case with clarity and polish.

What's Next

• Adding a quote-to-image feature for easy social sharing
• Building integrations (Shopify, Google Reviews)
• Launching on Product Hunt
• Talking to marketers, agencies, and indie founders to improve usability

Try It & Give Feedback

If you've got testimonials sitting in a spreadsheet somewhere, give TestimonialGenius.com a spin.

I'd love feedback, good, bad, or brutally honest. The hardest part of a 3-day build isn't shipping; it's finding out what you got wrong before anyone tells you.