> ## Documentation Index
> Fetch the complete documentation index at: https://bun-1dd33a4e-farm-3da57bd7-outdated-changelog.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Inspect memory usage using V8 heap snapshots

Bun implements V8's heap snapshot API. Use it to capture the heap at runtime and debug memory leaks in your JavaScript/TypeScript application.

```ts snapshot.ts icon="https://mintcdn.com/bun-1dd33a4e-farm-3da57bd7-outdated-changelog/lG5mjnlYZuyBKJpK/icons/typescript.svg?fit=max&auto=format&n=lG5mjnlYZuyBKJpK&q=85&s=aa649060096443cbeb2ef629b6584ecb" theme={"theme":{"light":"github-light","dark":"dracula"}}
import v8 from "node:v8";

// Creates a heap snapshot file with an auto-generated name
const snapshotPath = v8.writeHeapSnapshot();
console.log(`Heap snapshot written to: ${snapshotPath}`);
```

***

## Inspect memory in Chrome DevTools

To view V8 heap snapshots in Chrome DevTools:

1. Open Chrome DevTools (F12 or right-click and select "Inspect")
2. Go to the "Memory" tab
3. Click the "Load" button (folder icon)
4. Select your `.heapsnapshot` file

<Frame>
  <img src="https://mintcdn.com/bun-1dd33a4e-farm-3da57bd7-outdated-changelog/lG5mjnlYZuyBKJpK/images/chrome-devtools-memory.png?fit=max&auto=format&n=lG5mjnlYZuyBKJpK&q=85&s=5ed5f1179bf44579a1a7291af18a0eba" alt="Chrome DevTools Memory Tab" width="1770" height="1201" data-path="images/chrome-devtools-memory.png" />
</Frame>


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