Does this verify or send the request?

No. It only parses the text you paste. Nothing is sent anywhere, so headers with tokens stay private on your device.

Can it handle both request and response headers?

Yes. It recognises request lines like GET /path HTTP/1.1 and status lines like HTTP/1.1 200 OK, then lists the header fields.

What format should the headers be in?

Standard one-per-line Name: value pairs, exactly as they appear in browser dev tools or a raw HTTP message.

Developer Tools

HTTP Header Parser

Parse raw HTTP request or response headers into a readable table.

Free browser toolRuns in your browserNo sign-up

HTTP message inspector

Turn raw request or response headers into a readable inventory

Parse the start line and repeated header fields locally without making a request or resolving the destination.

header lines

unique names

Detected

start line

Raw HTTP headers

159 characters

Request or response block

Parsed header inventory

5 rows

Start line: GET /api/users HTTP/1.1

Header	Value
Host	api.example.com
Accept	application/json
Authorization	Bearer eyJhbGci...
Content-Type	application/json
Cache-Control	no-cache

Parsing is local, but copied screenshots or exported browser sessions can still expose tokens. Redact authorization and cookie values before sharing results.

Private by design. Input is processed inside this browser tab and is not sent to ToolsOnDuty.

About the HTTP Header Parser

HTTP headers carry metadata about a request or response, such as content type, caching rules and authentication. Reading them as raw text is awkward.

This tool splits raw headers into a clean name and value table, and picks out the request or status line if present.

Everything is parsed in your browser, so it is safe to paste headers that contain tokens.

Key features

Parses request and response headers
Detects the request or status line
Clean name/value table
Local, private parsing

How to use

1Paste raw headers, one per line, in Name: value format.
2Read the parsed table below.
3The start line is shown separately when present.

Examples

Parse response headers

Input: Content-Type: application/json

Each header line becomes a row in the table, split into name and value.

Frequently asked questions

Does this verify or send the request?: No. It only parses the text you paste. Nothing is sent anywhere, so headers with tokens stay private on your device.
Can it handle both request and response headers?: Yes. It recognises request lines like GET /path HTTP/1.1 and status lines like HTTP/1.1 200 OK, then lists the header fields.
What format should the headers be in?: Standard one-per-line Name: value pairs, exactly as they appear in browser dev tools or a raw HTTP message.

Open a related tool to prepare your files or refine the finished result.