Detect and fix memory leaks using heap snapshots, memory profiling, and leak detection tools. Use when investigating memory growth, OOM errors, or optimizing memory usage.

Memory Leak Detection Table of Contents [Overview]( overview) [When to Use]( when to use) [Quick Start]( quick start) [Reference Guides]( reference guides) [Best Practices]( best practices) Overview Identify and fix memory leaks to prevent out of memory crashes and optimize application performance. When to Use Memory usage growing over time Out of memory (OOM) errors Performance degradation Container restarts High memory consumption Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents [Node.js Heap Snapshots](references/nodejs heap snapshots.md) Node.js Heap Snapshots [Memory Leak Detection Middleware](references/memory leak detection middleware.md) Memory Leak Detection Middleware [Common Memory Leak Patterns](references/common memory leak patterns.md) Common Memory Leak Patterns [Python Memory Profiling](references/python memory profiling.md) Python Memory Profiling [WeakMap/WeakRef for Cache](references/weakmapweakref for cache.md) WeakMap/WeakRef for Cache [Memory Monitoring in Production](references/memory monitoring in production.md) Memory Monitoring in Production Best Practices ✅ DO Remove event listeners when done Clear timers and intervals Use WeakMap/WeakRef for caches Limit cache sizes Monitor memory in production Profile regularly Clean up after tests ❌ DON'T Create circular references Hold references to large objects unnecessarily Forget to clean up resources Ignore memory growth Skip WeakMap for object caches

memory-leak-detection