I Built 32 Free Business Calculators — No Signup, No Backend, Just Vanilla JS

Hi everyone! 👋

I'm a solo developer and I built BizCalcLab — a collection of 32+ free business calculators for small business owners and freelancers.

Why? I noticed most financial tools out there either require signup, collect data, or charge for basic features. I wanted something simpler.

What's included:

Tax calculators (SE tax, quarterly, S-Corp)