Content-Type Negotiator
Simulate HTTP content negotiation
Cookie String Parser
Parse raw cookie header strings
HAR File Analyzer
Analyze HAR network trace files
Query Parameter Inspector
Inspect and edit query parameters
Domain Extractor
Extract root domains and subdomains
URL Canonicalizer
Normalize messy URLs
Robots.txt Tester
Test robots.txt match rules
CORS Header Validator
Check if cors headers are correctly configured
HTTP Header Analyzer
Paste headers → detect misconfigs in one click
HTTP Mock Response Builder
Generate mock HTTP responses
Set-Cookie Parser
Parse Set-Cookie headers
ETag Generator
Generate ETag values from content
Redirect Rule Builder
Generate redirect rules quickly
Nginx Redirect Generator
Generate Nginx redirect config
Apache Redirect Generator
Generate Apache redirect config
Security Header Checker
Check common security headers
Webhook Signature Verifier
Verify webhook signatures locally
CIDR Range Expander
Expand small CIDR ranges
IPv6 Compression / Expansion Tool
Compress and expand IPv6 addresses
MIME Header Parser
Parse MIME and Content-Type headers
Basic Auth Header Generator
Generate HTTP Basic Authorization headers