Sentry Has a Free Tier — Track Errors, Performance, and Crashes Across Your Entire Stack

Your app is crashing in production. A user reports "it does not work." Your logs say nothing useful. You spend 3 hours guessing. Sentry gives you real-time error tracking with stack traces, breadcrumbs, and user context — for free. 5,000 errors/month, unlimited projects. What You Get for Free 5,000 errors/month — events with full stack traces 10,000 performance transactions/month — track slow endpoints 1 GB attachments — screenshots, minidumps Unlimited projects — monitor everything Release tracking — correlate errors with deployments Source maps — readable stack traces in production 100+ integrations — Slack, GitHub, Jira, PagerDuty Quick Start (3 Minutes) 1. Sign Up and Get DSN Sign up at sentry.io , create a project, grab your DSN (Data Source Name). 2. Node.js / Express npm install @sentry/node import * as Sentry from " @sentry/node " ; Sentry . init ({ dsn : " https://YOUR_KEY@sentry.io/YOUR_PROJECT " , tracesSampleRate : 1.0 , }); // Express error handler app . use ( Sentry . Han