Profiling Puppeteer Memory Usage in Node.js

A puppeteer memory leak shows up as RSS growing over hours until your container gets OOM-killed. Finding the actual source requires heap snapshots, not guesswork. This guide walks through profiling Puppeteer memory step by step: setting up monitoring, establishing a baseline, running load tests, capturing heap snapshots, comparing them to find retained objects, and identifying what's actually leaking. Understanding Node.js Memory Metrics Before profiling, you need to know what the numbers mean.