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)
- Pricing calculators (profit margin, break-even)
- Payroll calculators (salary, freelance rate, employee cost)
- Loan & debt calculators
- Cash flow & valuation calculators
Tech: Just plain HTML, CSS, and JavaScript. No frameworks, no backend, no database. Everything runs in the browser.
Business model: Ad-supported, so it stays free for everyone.
Happy to answer any questions about the build, tech, or growing a free tool!
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