Built a simple stock valuation tool for US equities — would love your feedback

I’ve been investing in US stocks for almost 6 years, and one thing has become increasingly clear to me:

Valuation is one of the most important parts of investing.
The same great company—if you buy it cheap vs. expensive—can lead to completely different outcomes.

But valuation isn’t very accessible.

Methods like DCF or P/E aren’t conceptually hard, but the moment you try to build a model in Excel, most people give up. I’ve tried walking a few friends through it, and almost everyone gets stuck at this step.

So I started thinking:

Can we make valuation something non-finance people can actually use?

That’s why I built this project: https://minivaluator.com/

You enter a stock ticker, it pulls financial data automatically, and lets you estimate intrinsic value with just a few inputs.

A couple of things I focused on:

• DCF (based on free cash flow)

• P/E-based valuation

• Sensitivity heatmaps (so you can see how assumptions impact value)

• Analyst estimates as a fallback if you’re unsure about growth

• Bilingual (English + Chinese)

Like my previous projects, AI played a big role here. From architecture discussions to code generation, translation, and debugging—I relied heavily on Claude throughout the process.

This is also my first “tool-type” product. Previously I mostly built content-driven things, but this one involved interaction design, calculation logic, auth system, and backend setup. Definitely a step up in complexity—and plenty of rough edges.

Would really appreciate feedback from this community:

• Does it feel intuitive to use?

• Anything that feels awkward or confusing?

• What features do you think are missing?

• Or anything you think is just poorly done?

If you invest in US stocks, feel free to try it out.

Also happy to exchange notes—I made quite a few mistakes building this.