HAR analyzer
Drop or paste a HAR export from Chrome DevTools, Firefox, or Charles. See summaries by domain, status code, cache hits, and transfer size — plus a slow-request table and a simple timing waterfall.
HAR files stay on your device — parsed locally, never uploaded. Sensitive headers and query parameters are flagged; toggle redaction when inspecting entries. The raw input remains visible until you clear it.
Load HAR
Drop a .har file here
or
Sensitive headers or query parameters detected. Displayed values are hidden, but the raw JSON remains in the input box. Uncheck redaction only if you trust this tab session.
Could not parse HAR
Summary · requests · transfer · decoded · cache hit / miss
Page:
By domain
| Domain | Req | Transfer |
|---|---|---|
By status
| Status | Count |
|---|---|
Slowest requests
| Method | URL | Status | Time | Transfer |
|---|---|---|---|---|
Waterfall
Selected entry
Wait ms · DNS ms · Connect ms · Cached:
About this tool
A HAR (HTTP Archive) file records every network request from a page load — URLs, status codes, headers, timings, and sizes. Export one from Chrome DevTools → Network → right-click → Save all as HAR with content.
HAR files often contain session cookies and API tokens. This analyzer processes everything locally and redacts sensitive headers by default. Do not share HAR exports publicly without scrubbing them first.