Cookies and auth headers, values redacted, names kept.
HAR file analyzer. Check a HAR before you share it.
See what failed and what’s secret in a HAR file, then download a copy with the secrets redacted. Nothing leaves your browser.
Drop a HAR file hereCheck a HAR file
It’s read in this tab and never uploaded.
Stop asking customers for HAR files. Send a packet link instead.
Get startedWhat it checks. And what it changes in the copy.
Secrets become REDACTED and their names stay, so the copy still opens in any HAR viewer.
Tokens in URLs and bodies, JWTs and API keys included.
Every failed request, in the order they happened.
Questions, answered.
More in our guide to HAR files.
No. Your browser reads it, and nothing in it is sent anywhere. Once the page has loaded, it even works offline.