HAR Viewer is a app that allows to visualize HTTP tracing logs based on HTTP Archive format (HAR).
These files contain recorded information about HTTP traffic performed by web pages. A HAR log can be created by Chrome, Firebug.
HAR (HTTP Archive) files can be generated by most browsers and contain a log of HTTP requests and responses, they can also contain body content. Excellent for debugging HTTP sessions.

This HAR Viewer does not save or share the file you select. It only works locally without going through the server. (HTML5)
You can open a HAR file to view from your computer or your Google Drive. Provides connect with Google Drive.
With this viewer you can open a HAR file and view its contents very easily.