mrrlens
No network requests. Your data stays in this tab.

SaaS metrics from a billing CSV, without uploading it

Drop in an invoice export from Stripe and get MRR, churn, retention cohorts and LTV. Everything is computed in your browser by one readable file.

Drop a CSV here
Invoice line items work best. The file is read locally and never leaves your machine.

What file do I need?

  1. Export invoices from your billing dashboard with line items, so every row has a period start and end.
  2. Drop the CSV here. Column names vary between exports, so mrrlens shows you how it mapped them.
  3. Check the numbers against your dashboard in the reconcile box.

Why trust the numbers?

Every definition is written down in the report. Each report carries a SHA-256 of your file and the settings used, so a buyer or accountant can re-run it and get the same result.

Why trust the privacy claim?

A Content-Security-Policy on this page forbids all network access. Go offline, or watch the Network tab. The whole tool is one HTML file you can read.