Network & Ops

42 Tools · Free Online Tool

• IP Lookup

  Query IP address geolocation and ISP info.

• Subnet Calculator

  Calculate IPv4 subnet details from CIDR.

• DNS Lookup

  Query DNS records via Google DNS over HTTPS.

• User-Agent Parser

  Parse browser, OS, and device from UA string.

• HTTP Status Codes

  Reference for all HTTP status codes.

• HTTP Request Tester

  Send GET/POST/PUT/DELETE requests and inspect responses.

• URL Parser

  Parse a URL into its components: protocol, host, path, query.

• Device Information

  Show browser, OS, screen, and device info from the client.

• MAC Address Lookup

  Look up the vendor of a MAC address.

• MIME Type Lookup

  Look up MIME types by file extension and vice versa.

• File Hash Checksum

  Drop a file to compute SHA-1, SHA-256, SHA-384 and SHA-512 checksums.

• Show My IP Address

  Display current client public IP and browser IP info.

• IPv6 Address Generator

  Generate random or prefix-based IPv6 addresses.

• IPv4 to IPv6 Converter

  Convert IPv4 to IPv6 mapped address (::ffff:a.b.c.d).

• CIDR to IP Range Converter

  Convert CIDR block to start/end IP range.

• IP Range to CIDR Converter

  Convert start/end IP to CIDR list.

• IP Address Validator

  Validate IPv4/IPv6 format and legality.

• MAC Address Generator

  Generate random or OUI-based MAC addresses.

• Query String Parser

  Parse URL query params to key-value pairs with edit support.

• URL Builder

  Compose base, path, query params into full URL.

• HTTP Headers Parser

  Parse raw HTTP header text to structured key-values.

• Cookie Parser

  Parse document.cookie string to object.

• Basic Auth Header Generator

  Generate Authorization: Basic header from username/password.

• Bearer Token Header Generator

  Generate Authorization: Bearer header with JWT prefill.

• DNS-over-HTTPS Client

  Query DNS records via fetch to DoH endpoints.

• WebSocket Client Tester

  Connect to WS server, send/receive messages with logs.

• Server-Sent Events Tester

  Subscribe via EventSource and display SSE stream.

• WebRTC Connection Tester

  Establish RTCPeerConnection to verify connectivity and ICE.

• HTTP Methods Reference

  Query GET/POST/PUT/DELETE method semantics and idempotency.

• TCP Port Reference

  Query common port-to-service mappings (80/443/3306…).

• Well-Known Port Lookup

  Look up IANA registered ports by port or service name.

• Content Security Policy Builder

  Visually compose CSP header directives.

• CORS Rule Builder

  Generate CORS response headers (Access-Control-*).

• Robots.txt Generator

  Generate robots.txt rules for a site.

• Sitemap XML Generator

  Generate sitemap.xml from a URL list.

• .htaccess Generator

  Generate redirect/cache/auth .htaccess rules.

• Nginx Config Generator

  Generate reverse proxy/static site Nginx configs.

• Docker Compose Generator

  Visually generate docker-compose.yml.

• Dockerfile Generator

  Generate Dockerfile templates by language/runtime.

• .gitignore Generator

  Generate .gitignore templates by language/IDE selection.

• CI/CD YAML Generator

  Generate GitHub Actions / GitLab CI pipeline templates.

• .env File Generator

  Manage key-values to generate .env and .env.example.