Tools for the moments around a production release.
Plan the deployment, measure what changed, and reconstruct what happened next. Your inputs stay in the browser.
Measure
Release Impact Calculator
Compare a product metric before and after a deployment with transparent absolute and percentage deltas.
Open tool →Sentry Error Spike Calculator
Compare Sentry error and affected-user counts across equal or unequal observation windows.
Open tool →Release Window Timestamp Generator
Generate symmetric 1-hour, 24-hour, and 7-day measurement windows around a deployment timestamp.
Open tool →Prepare
Vercel Environment Variable Diff Checker
Compare environment variable names across local, preview, and production without uploading their values.
Open tool →Post-Deployment Checklist Generator
Generate a practical release checklist tailored to your deployment type, stack, and risk areas.
Open tool →Deployment Risk Score Calculator
Estimate release risk from change size, migrations, sensitive flows, test status, and rollback readiness.
Open tool →