HAR Viewer
Inspect HTTP Archive files with waterfall charts, request details, and timing breakdowns.
How to Use
- 1Open Chrome DevTools (F12) → Network tab → reproduce the issue.
- 2Right-click the request list → 'Save all as HAR with content'.
- 3Drop the .har file into the viewer or click Browse.
- 4Filter by type (XHR, JS, CSS, Images), search URLs, and click any request for details.
- 5Inspect headers, request/response bodies, and timing breakdowns.
Key Features
- Visual waterfall chart showing request timing
- Filter by resource type: XHR, JS, CSS, Images, Fonts, Media
- Search and filter requests by URL, method, or status code
- Sortable columns: status, size, time
- Request/response header inspection
- Request and response body viewer with JSON formatting
- Timing breakdown: DNS, connect, SSL, TTFB, download
- Summary stats: total requests, transferred size, errors
- Export filtered requests as a new HAR file
- Color-coded status indicators
- 100% browser-based — HAR files never leave your device