HAR File Viewer & Waterfall Inspector
Processed in your browser
Inspect and visualize HTTP Archive (.har) files with interactive network waterfalls, latency breakdowns (TTFB, DNS, SSL), headers, and payload sizes.
HTTP Archive (HAR) Viewer & Waterfall Inspector
Analyze network logs, waterfalls, and latency breakdowns 100% locally in your browser.
Drag and drop a .har file here, or click to browse
Client-side processing only. Private session cookies and tokens never leave your computer.
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| Status | Method | Name / URL | Type | Size | Time | Waterfall |
|---|---|---|---|---|---|---|
| No HAR file loaded. Drag and drop a file above or click "Load Sample HAR". | ||||||
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Direct In-Browser Handoff
DevOps & System Utility Pipeline
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
How to Use the HAR File Viewer & Waterfall Inspector
Free, browser-first HAR File Viewer and Network Waterfall Inspector. Analyze DevTools network export files locally with visual timing waterfalls, status filtering, header inspection, and payload sizes with 100% privacy and zero data uploads.
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
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