How I Built a Free Font Tool That Got 1,000 Designers in 30 Days (And You Can Too).

It all started with a personal frustration. As someone who spends way too much time tinkering with web design, I was sick of the endless cycle of "pick a font, preview it, realize it looks terrible, repeat." Google Fonts is an incredible resource, but jumping between tabs, dealing with clunky menus, and trying to remember what "Roboto Condensed" looked like five fonts ago was a drag. I knew I couldn't be the only one.

So, I decided to build the tool I wanted. Something fast, visual, and dead simple. That's how FontPreview.online was born. But this isn't just a story about writing code; it's about spotting a niche, launching fast, and getting your first users without a massive ad budget.

The "Build in Public" Gamble
I gave myself a strict two-week deadline. The core goal was simple: load every Google Font, let users type their own text, and see the changes instantly. I called it a "Minimum Viable Product" (MVP), but in reality, it was a bet. I launched quietly on a few Indie Hackers forums and a couple of design-focused Discord servers.

The first day was crickets. Maybe 50 visitors. But by day three, something clicked. A designer on a UI/UX subreddit shared it, and the feedback was immediate and game-changing.

Users didn't just want to see fonts. They wanted to compare them. They needed to check contrast for accessibility (WCAG). They were desperate for "System Font" options. This wasn't just a fun project; it was a real pain point.

Listening to the Trenches (Your Best Feature Source)
Instead of building a massive roadmap in a silo, I started building what people asked for, one feature at a time. This iterative, community-driven approach has been the engine of the site's growth.

The Comparison Bar: Users wanted to select a few fonts and see them side-by-side. Now you can.

The APCA Contrast Check: After a designer mentioned the new WCAG 3 standards, I integrated an APCA (Accessible Perceptual Contrast Algorithm) checker. It's now one of our most-used features for UI designers.

The "F92" High Contrast Mode: A developer building a dashboard for low-vision users requested a quick way to simulate high contrast. The "Fluent 92.3" toggle was born in an afternoon.

This constant feedback loop turned a simple previewer into a "Typography Workbench." We added a color blindness simulator, variable font controls, and even a pinning system for favorite fonts. Each feature was a direct response to a user's "I wish it could..."

The Result and What's Next
Today, the site gets steady traffic from designers, developers, and content creators who use it daily. It's a free tool, and it will stay that way for core features. The plan for sustainable "bootstrap" growth? Small, valuable pro features for power users, like exporting full CSS kits or saving entire brand typography kits.

Building FontPreview.online taught me that the best indie hacker projects solve a developer's or designer's "paper cut", that tiny, recurring annoyance you learn to live with but shouldn't have to.

If you have an idea, launch it. Listen to the people who try it. They'll tell you exactly what to build next.