Developer
HAR Network Summary
Summarize a pasted HAR recording by host, HTTP errors, request time and known response sizes.
Pasted data only; up to 2 million characters / 10,000 requests. HARs may contain secrets: remove sensitive details before pasting. Body sizes reported as -1 or absent are unknown, not zero-byte responses.
Good to know
Frequently asked questions
How do I use it?
Enter your har json and press “Summarize HAR”. Check the result, then copy or download it.
How does it work?
Paste a browser HTTP Archive. The example produces one request to example.com, 25 total request milliseconds and 128 known response body bytes. Hosts are grouped without exporting URL paths, query strings, headers or cookies. Time sums may overlap and are not page-load duration.
Are there limitations?
Pasted data only; up to 2 million characters / 10,000 requests. HARs may contain secrets: remove sensitive details before pasting. Body sizes reported as -1 or absent are unknown, not zero-byte responses.
Is my data uploaded?
No. Everything is processed in your browser and nothing is sent to a server. No account is needed.





