HTTP Headers Parser
Parse raw HTTP request and response headers into structured key-value data and inspect common security, caching and CORS headers directly in your browser.
How to Use
Paste raw HTTP response or request headers into the input area.
Switch between Parsed, Table, and JSON view tabs to inspect structured key-value pairs.
Review the Security Headers Inspection panel to verify presence of HSTS, CSP, X-Content-Type-Options, and more.
Copy the parsed JSON structure or individual header values for use in your code or documentation.
Why Use HTTP Headers Parser?
Structured Multi-View Inspector
Explore headers through an interactive card overview, searchable table, or formatted JSON output.
Security & Caching Auditing
Instantly identifies HSTS, CSP, Referrer-Policy, Cache-Control, ETag, and CORS directives.
Preserves Duplicate Headers
Correctly preserves multiple headers with identical keys (such as Set-Cookie) rather than silently overwriting them.
Request & Response Support
Parses both HTTP response status lines and HTTP request method lines with obsolete line-folding support.
About This Tool
The HTTP Headers Parser inspects raw HTTP request and response header dumps from network captures, server logs, or cURL output. It parses status lines, preserves duplicate headers such as Set-Cookie, provides categorized views, and highlights security, caching, and CORS header configurations.
Frequently Asked Questions
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