HTTP Headers Parser
Paste raw HTTP headers and instantly parse them into structured JSON.
You can paste raw request or response headers, with or without the HTTP status line.
What is an HTTP headers parser?
HTTP headers carry metadata about requests and responses, such as content type, caching, security rules, and server behavior.
This tool helps you convert raw HTTP headers into structured JSON and a readable key-value list directly in your browser.
How to use the HTTP Headers Parser
- Paste raw HTTP request or response headers into the input field.
- Click Parse.
- View the headers as JSON and as a readable list.
Tips
- You can paste headers copied from browser DevTools, curl, Postman, or server logs.
- Duplicate headers are grouped into arrays.
- Security-related headers are highlighted for quick review.
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HTTP header checks for debugging requests and responses
Headers explain caching, negotiation, security, proxies, and authentication behavior that is not visible in the response body.
Caching rules
Read Cache-Control, Expires, ETag, Vary, and Age together to understand browser and intermediary cache behavior.
Content handling
Confirm Content-Type, charset, Content-Encoding, and Content-Disposition match the bytes and download behavior you expect.
Proxy evidence
Inspect Via, Forwarded, X-Forwarded-* and vendor headers when CDN or reverse-proxy behavior differs from the origin.
Sensitive values
Redact cookies, authorization headers, internal hostnames, request IDs, and infrastructure details before sharing a capture.
Privacy and usage
Built for quick checks without an account
Toolinix tools are designed for short developer tasks: paste a safe sample, inspect the result, copy what you need, and move on.
No login required
You can use the tools without creating an account, subscribing to a newsletter, or saving a workspace.
Local when possible
Formatters, generators, encoders, and text utilities generally run in your browser. Network diagnostics may need a server-assisted lookup to check public URLs, domains, or IPs.
Keep secrets out
Do not paste production passwords, private keys, access tokens, customer records, or regulated data into online tools unless your own security policy allows it.
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