Developer Tools
HTTP Header Parser
Parse copied HTTP headers locally and inspect duplicate header values.
0Header names
0Repeated names
—Start line
Parsed headers will appear here.
Header parsing happens locally in your browser.
Duplicate HTTP headers
Some header names may appear more than once. This parser preserves repeated values in arrays rather than discarding them.
Copied header blocks
You can paste request headers, response headers or a browser/network inspector header block. Continuation lines are not supported because obsolete line folding is deprecated.