Free Stripe & dunning tools
Practical tools for Stripe subscription businesses: work out what failed payments cost you, and decode any Stripe decline. Free to use, no account needed.
Failed Payment Revenue Loss Calculator
See how much MRR failed payments cost you each month and year, and how much you could recover with a full dunning stack.
Open tool ReferenceStripe Decline Code Lookup
Search all 38 Stripe decline codes: what each means, whether retrying helps, and the right recovery approach.
Open tool CalculatorStripe Proration Calculator
See the credit, prorated charge, and net amount due when a subscription changes plans mid-cycle. Upgrades and downgrades.
Open tool ReferenceStripe Webhook Events Reference
Search all 43 Stripe webhook events: what each means, when it fires, and what to do with it.
Open toolMore from SubRevival
Recover failed Stripe payments automatically
SubRevival turns these insights into recovered revenue: branded Day 1/3/7 emails from your domain, a hosted card update page, and pre-dunning reminders. $19/mo flat, 5-minute OAuth, 21-day guarantee.