Free Stripe & SaaS tools
FreeFourteen free revenue diagnostic tools. No account or Stripe connection required.
SaaS Billing Health Score
Score your billing setup from 0-100. Get a risk level, top billing failure risks, quick wins, and what Korrali Revenue would monitor automatically.
~1 second
Stripe Revenue Leakage Calculator
Enter your MRR, failed payment rate, and recovery assumptions. Get your estimated monthly and annual revenue leakage and recoverable amount.
~1 second
Failed Payment Recovery Planner
Enter your open failed invoices, customer segment, and dunning setup. Get a recovery priority, retry schedule, and a tailored dunning sequence.
~1 second
Duplicate Charge Risk Checker
Assess your duplicate charge exposure from idempotency, webhook handling, and manual tooling gaps. Get a risk score and prevention checklist.
~1 second
MRR Growth Calculator
Enter your current MRR, monthly growth rate, and churn rate. Get a 12-month projection, months to double, and annual ARR estimate.
~1 second
Churn Rate Calculator
Calculate customer churn rate, revenue churn rate, and net revenue retention from your monthly subscription data.
~1 second
Net Revenue Retention Calculator
Enter starting MRR, expansion, contraction, and churn. Get your NRR%, gross revenue retention, and expansion ratio.
~1 second
Stripe Fee Calculator
Enter a transaction amount and card type. Get the exact Stripe fee, net payout, and effective rate for standard and international cards.
~1 second
LTV:CAC Calculator
Calculate customer lifetime value, LTV:CAC ratio, and payback period from your ARPU, gross margin, churn rate, and acquisition cost.
~1 second
ARR Calculator
Convert MRR to ARR and project your Annual Recurring Revenue at 3, 6, and 12 months using your monthly growth rate.
~1 second
Burn Multiple Calculator
Calculate your Burn Multiple from net burn and net new ARR. Benchmark your capital efficiency against Series A–B investor expectations.
~1 second
Rule of 40 Calculator
Calculate your Rule of 40 score from revenue growth rate and operating profit margin. See how you stack up against top-quartile SaaS companies.
~1 second
CAC Payback Period Calculator
Calculate how many months it takes to recover your CAC from gross profit. Get your payback grade and investor benchmark.
~1 second
Expansion MRR Tracker
Enter new, expansion, contraction, and churned MRR. Get NDR, GRR, and a full MRR waterfall breakdown for the period.
~1 second
Free tools calculate from your inputs only — no Stripe connection needed. When you're ready to monitor your real Stripe account automatically, start your free trial and Korrali Revenue will backfill 90 days of billing events.