# HAR File Parser

Upload a .HAR (HTTP Archive) file to inspect network traffic. Filter for JSON/XHR requests to find the exact API calls used by any website.

### Click to Upload .HAR File

Export this from Chrome DevTools (Network Tab > Export HAR)

Select File

## Inspect Traffic Offline

The browser's Network tab is transient—if you close the tab, the data is gone. Exporting as a HAR file gives you a permanent snapshot of a scraping session. You can share this file with teammates or analyze it later to understand exactly how a website behaves under the hood.

### Reverse Engineer APIs

By filtering for JSON responses in a HAR file, you can isolate the exact API endpoints a website uses to populate its content. You can see the request headers, cookies, and payload parameters required to replicate that request in your Python or Node.js script.

### Debug Performance

HAR files contain precise timing data (DNS lookup, connect time, SSL handshake, wait etc.). This is invaluable for debugging why your scraper is slow. You might find that a specific 3rd party tracker is timing out and blocking the rest of the page load.

## Questions

### What is a HAR file?

### How do I create a HAR file?

### Is my data safe?

### Why filter for JSON/XHR?