How do I get raw headers from Chrome DevTools?

Open DevTools (F12) -> Network tab -> click any request -> Headers tab -> click 'view source' or copy response headers.

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HTTP Header Parser

Parse raw HTTP headers with categorization and security explanations.

How to Use HTTP Header Parser

1Paste raw HTTP headers copied from browser DevTools or cURL.
2The tool parses header names and values into a clean table.
3Review categories (CORS, Security, Caching) and explanations.

Key Features & Benefits

Parses multi-line raw header text into formatted key-value pairs
Categorizes headers: Security, CORS, Caching, Representation, Auth
Built-in explanations for security headers (CSP, HSTS, X-Frame-Options)
Filter by category or search header names

About HTTP Header Parser

Format and analyze raw HTTP request and response headers. Categorizes headers (CORS, Security, Caching, Content) and provides plain-English explanations for common security policies.

Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our HTTP Header Parser operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.

Frequently Asked Questions

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Developer Tools100% In-Browser & Private

HTTP Header Parser

Parse raw HTTP headers with categorization and security explanations.

Raw HTTP Headers

Parsed Headers (5)

content-type:application/json; charset=utf-8

Describes the media type, encoding, or length of the payload body.

Representation

cache-control:public, max-age=3600, stale-while-revalidate=86400

Instructs browser and proxy CDN caches how long responses may be reused.

Caching

access-control-allow-origin:*

Cross-Origin Resource Sharing directive governing browser resource requests.

CORS

strict-transport-security:max-age=63072000; includeSubDomains; preload

Hardens client-side security against XSS, clickjacking, and MIME sniffing.

Security

x-content-type-options:nosniff

Hardens client-side security against XSS, clickjacking, and MIME sniffing.

Security

How to Use HTTP Header Parser

1Paste raw HTTP headers copied from browser DevTools or cURL.
2The tool parses header names and values into a clean table.
3Review categories (CORS, Security, Caching) and explanations.

Key Features & Benefits

Parses multi-line raw header text into formatted key-value pairs
Categorizes headers: Security, CORS, Caching, Representation, Auth
Built-in explanations for security headers (CSP, HSTS, X-Frame-Options)
Filter by category or search header names

About HTTP Header Parser

Format and analyze raw HTTP request and response headers. Categorizes headers (CORS, Security, Caching, Content) and provides plain-English explanations for common security policies.