HTTP & Network Tools
Parse URLs and HTTP headers, inspect status codes and MIME types, and calculate IPv4 subnet information directly in your browser.
6 tools with local browser processing.
All http & network tools
URL Parser
Parse a URL into its protocol, host, path, query parameters, fragment and credentials. Inspect and copy URL components locally in your browser.
Query String Parser & Builder
Parse query strings into editable key and value rows, preserve repeated parameters, and build encoded URL parameters locally with URLSearchParams.
HTTP Header Parser
Parse pasted HTTP request or response headers into readable name and value rows. Preserve duplicate fields and inspect common headers locally.
HTTP Status Code Lookup
Search standard HTTP status codes by number, phrase or class. Find concise meanings for informational, success, redirect and error responses.
MIME Type Lookup
Look up common file extensions, MIME types and content categories. Find local reference entries for JSON, SVG, WebP, PDF, CSV, XML and more.
IP Subnet Calculator
Calculate IPv4 network and broadcast addresses, masks, host ranges and address counts from an IP and CIDR prefix. Includes /31 and /32 handling.
Choose the right tool
Use URL Parser to inspect a complete address and Query String Parser to edit its parameters. Inspect pasted headers alongside the status-code and MIME references. Subnet calculations describe IPv4 ranges without making network requests.
- URL Parser: Parse a URL into its protocol, host, path, query parameters, fragment and credentials. Inspect and copy URL components locally in your browser.
- Query String Parser & Builder: Parse query strings into editable key and value rows, preserve repeated parameters, and build encoded URL parameters locally with URLSearchParams.
- HTTP Header Parser: Parse pasted HTTP request or response headers into readable name and value rows. Preserve duplicate fields and inspect common headers locally.
- HTTP Status Code Lookup: Search standard HTTP status codes by number, phrase or class. Find concise meanings for informational, success, redirect and error responses.
- MIME Type Lookup: Look up common file extensions, MIME types and content categories. Find local reference entries for JSON, SVG, WebP, PDF, CSV, XML and more.
- IP Subnet Calculator: Calculate IPv4 network and broadcast addresses, masks, host ranges and address counts from an IP and CIDR prefix. Includes /31 and /32 handling.