Handitab

HAR Viewer

Open a HAR file exported from browser developer tools and list every request with its method, status, type, size, and time taken.

About HAR Viewer

A HAR (HTTP Archive) file is a JSON log of the network requests a browser made while loading a page, exported from the Network tab of developer tools. This viewer reads the log.entries list and shows each request with its method, status code, content type, transferred size, and duration, plus totals. The file is parsed in your browser. HAR files can contain cookies and tokens, so remove those before sharing one.

How to use HAR Viewer

  1. Type or paste into the "HAR file contents (JSON)" box, or press "Use example" to try it with sample data.
  2. Set "Sort by" and "Show only errors" if the defaults do not fit.
  3. The result appears below and updates as you type.
  4. Copy the result with the copy button, or download it as a file where that is offered.

Questions about HAR Viewer

How do I export a HAR file?

Open developer tools in Chrome, Edge, or Firefox, go to the Network tab, reload the page, then use the download or export HAR button in that tab. Safari offers the same under Export in its Network tab.

Runs in your browser. Page last updated .

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