What format does Google Chrome Developer Tools save data as?

Question

I am using Google chrome's developer tools to inspect the timeline of some requests. There is the option of storing them as a .HAR file, but I could not find anything that opens it. In a browser, it looks like a simple text file.

Does anybody know how to save Developer Tool's data in a suitable format or how to open .HAR files?

Answer 1

.har seems to be an HTTP Archive Spec file. You can use HTTP Watch to open such files. FWIW those are JSON files

Answer 2

The HTTP Archive format (HAR) format is intended to be a format for sharing HTTP data across tools. Although there are a bunch of tools that support HAR & allow exporting, only a few among those appear to allow import:

• HAR Viewer (offline, online)
• PCAP Web Performance Analyzer
• Fiddler
• Charles
• HTTPWatch