HTTP header inspector

Put it to work

Structure response headers while retaining duplicate fields.

From input to output

Open HTTP header inspector and load the example.
Read the format notes, choose your options, and replace the example with your input. Start with test data instead of sensitive information.
Run the tool and inspect the result and status. If an error appears, correct the input format and run it again.
Copy the output or download a file. Generated and converted results are not saved automatically.

Structure response headers while retaining duplicate fields. Names precede the colon. Repeated fields are kept as arrays.

Example input

HTTP/1.1 200 OK
Content-Type: application/json
Cache-Control: max-age=60
Set-Cookie: a=1
Set-Cookie: b=2

Reading the result

{"content-type":["application/json"],"cache-control":["max-age=60"],"set-cookie":["a=1","b=2"]}

Details that matter

Format and meaning

Names precede the colon. Repeated fields are kept as arrays.

Supported scope and limits

Text 1 MB

Split inputs that exceed the limit. If a format or algorithm is unsupported, choose a tool that matches your requirements instead of silently changing the format.

What happens to your data?

Tools run in your browser. DNS lookup sends the queried domain to the named external provider. Ads may appear on home, guide, and workspace pages according to settings.

Open tool

Put it to work

From input to output