VentriTools — Free Calculators for Online Business Owners
VentriTools is a free, no-signup toolkit of financial and operational calculators built specifically for people who run online businesses. Whether you're a SaaS founder stress-testing your churn rate before a board update, an e-commerce owner working out whether your ad spend is sustainable, or a freelancer setting a day rate that actually covers your costs — VentriTools gives you a straight answer without making you create an account to get it.
What's inside
Every tool on VentriTools is single-purpose: one question, one calculator, one clear result. Categories include:
- SaaS — churn rate, LTV, CAC, MRR, and pricing calculators for subscription businesses
- E-commerce — margin, shipping cost, ad spend breakeven, and inventory calculators
- Agencies & freelancers — hourly rate, retainer pricing, and project cost tools
- General business — break-even analysis, payroll estimates, and financing calculators
- Security — password strength, brute-force time, and downtime cost calculators
How it works
Enter your numbers, get your answer, see the formula used to get there. Nothing is logged, stored, or sent anywhere — every calculation runs client-side in your browser. There's no email gate, no free trial, no upgrade prompt. The result is just the result.
Who it's for
VentriTools is built for operators who already know what question they're asking. Not a blog for people browsing general business advice — a tool for a SaaS founder who needs to know exactly how a 2% churn increase affects their 12-month revenue, or a freelancer who needs a defensible number before quoting a client.
Why free
The tools are free because the alternative — gating a calculator behind a signup form — adds friction without adding value. You shouldn't need an account to divide two numbers.
