HTTP Header Parser

Professional HTTP header parser that analyzes HTTP request and response headers with detailed explanations. Parses headers from curl commands, browser DevTools, or raw HTTP messages. Perfect for debugging API issues, understanding HTTP communication, analyzing security headers, and learning HTTP protocol. Features include automatic header detection and categorization, detailed descriptions for common headers, security header analysis (CSP, HSTS, X-Frame-Options), cache header interpretation, CORS header explanation, cookie parsing and analysis, and compression detection. The tool validates header syntax, highlights deprecated headers, shows header purpose and impact, detects missing security headers, provides recommendations for improvements, and explains each header's role. Essential for backend developers debugging APIs, security engineers auditing headers, DevOps optimizing caching, frontend developers solving CORS issues, and students learning HTTP. Supports request headers, response headers, custom headers, and multi-line header values with proper continuation handling.