Free HTTP Header Analyzer Online
Paste raw HTTP headers and analyze them instantly. Structured parsing with explanations.
What Are HTTP Headers?
HTTP headers are key-value pairs sent between a client and a server in HTTP requests and responses. They provide essential metadata about the request or response such as content type, authentication credentials, caching directives, and more.
Why Analyze HTTP Headers?
Developers and DevOps engineers often need to inspect HTTP headers when debugging API calls, diagnosing authentication issues, or optimizing caching strategies.
Raw headers can be difficult to read. This tool parses them into a structured table format and explains common headers for easier understanding.
Common HTTP Headers
- Content-Type
- Authorization
- User-Agent
- Cache-Control
- Accept
- Host
Developer Use Cases
- Debugging API requests
- Understanding server responses
- Testing authentication headers
- Analyzing network logs
FAQ
Is my header data stored?
No. All processing occurs locally in your browser.
Can I analyze response headers?
Yes. Both request and response headers can be parsed.
Does this validate header syntax?
It parses basic key-value pairs but does not validate HTTP protocol correctness.