HAR File Viewer
Choose a HAR file on your device, or paste HAR JSON, and see a summary.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
HAR File Viewer
How to use this tool
- Enter your values in the fields above.
- Press Generate to see the result.
- Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.
Worked example
The sample HAR has 2 entries, 1500 bytes of content in total, and the slowest request took 450 ms.
What this tool does not do / Limits
The file is read locally in your browser and nothing is uploaded. HAR files can contain private request data, so check what you paste before sharing it.
Frequently asked questions
Is my HAR file uploaded?
No. It is read locally in your browser and summarised there.
What if the file is not valid HAR JSON?
Then the tool reports that it could not be parsed, with no summary.
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