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Networking · Performance

Analyze any HAR file

Drop a .har export from Chrome / Firefox / Safari DevTools. See waterfall, slowest requests, byte totals, and status code breakdown. Nothing uploaded.

Runs locallyNo upload

Drop a HAR file

or click to choose · .har only · processed in your browser

HAR files often contain cookies, auth headers, and request bodies. We don't ship any of it - parsing happens fully in your browser.