HTTP Header Parser
Parse raw HTTP request and response headers to inspect methods, status lines, cookies, content types, caching, and server metadata.
Parse raw HTTP headers
Result
About this tool
HTTP Header Parser analyzes raw HTTP request or response headers and turns them into a readable summary. It helps you inspect methods, status lines, hosts, content types, cache settings, cookies, authorization headers, user agents, servers, and other important metadata used in websites, APIs, debugging, QA, and support work.
How to use HTTP Header Parser
- Copy the raw HTTP request headers or response headers from your browser, API tool, proxy, server log, or testing platform.
- Paste the full header block into the input area.
- Click Parse Headers.
- Review the summary, detected type, key metadata, cookies, and normalized header list.
- Use the sample data to test request and response parsing behavior instantly.
Why use HTTP Header Parser?
HTTP Header Parser makes raw headers easier to read and troubleshoot. It is useful when checking API calls, debugging browser requests, reviewing server responses, verifying content negotiation, inspecting cookies, or understanding why a request behaves differently across environments.
Frequently Asked Questions
What does HTTP Header Parser do?
It reads raw HTTP request or response headers and converts them into a structured summary with important metadata.
Can it parse both request and response headers?
Yes. It detects whether your input looks like an HTTP request or an HTTP response and summarizes it accordingly.
Does it show cookies and authorization headers?
Yes. It detects cookie-related headers, authorization information, and other common request and response fields.
Does this tool process my data on a server?
No. The parsing runs in your browser on the page so your pasted header text stays local.