HAR file viewer
Inspect requests, timings and headers in a HAR capture
A HAR is a network log with the credentials left in — Authorization headers, session cookies, bearer tokens in query strings, whole sign-in request bodies. This one is parsed in your browser: no upload, no request, and nothing kept in localStorage, in the URL or in your history. That is the reason to open a capture here rather than on a site that wants you to upload it. Redaction below is on by default, and it is a display filter — the file on disk is untouched, so a HAR is still a secret after you have looked at it here.
Choose a .har file or paste one above. In Chrome or Edge: devtools → Network → the download arrow → “Export HAR”. In Firefox: devtools → Network → the gear → “Save All As HAR”.