Network Tools tools

Parse raw HTTP headers into readable name-value pairs. Use when debugging responses; for URL parts use url-parser. Input: header text ≤10MB. Returns table of headers. 100% client-side.

• Parse HTTP request and response headers
• Break down each header field
• Copy individual header values

Split any URL into protocol, host, path, and query params. Use when inspecting URLs; for encoding query strings use url-encoder. Input: URL text. Returns component table. 100% client-side.

• Decompose URLs into protocol, host, path, and query
• Parse query parameters into a table
• Copy any URL component
• +1 more

Parse user-agent strings into browser, OS, and device. Use when debugging traffic; for live device data use device-information. Input: UA string. Returns parsed fields. 100% client-side.

• Extract browser, OS, and device from user agents
• Detailed breakdown with versions
• Real-time parsing as you paste

Calculate network, broadcast, and host range from CIDR. Use for subnet math; for geo lookup use ip-lookup. Input: IP/CIDR. Returns network details. 100% client-side.

• Calculate IPv4 subnets from CIDR
• Network, broadcast, and host ranges
• Wildcard masks and host counts
• +1 more

Look up DNS records for any domain. Use when checking DNS; for IP geo use ip-lookup. Input: domain name. Returns A, MX, TXT records. 100% client-side.

• Resolve A, AAAA, MX, NS, TXT, and CNAME records
• Live results from real DNS servers
• RDAP/WHOIS registration summary with registrar, dates, status, and nameservers

Look up geolocation and ISP for any IP address. Use for geo data; for subnet math use ip-calculator. Input: IPv4/IPv6. Returns location and ASN. 100% client-side.

• Geolocate an IP address
• ISP, ASN, and country details
• Live results from public databases

Generate Basic Auth headers from username and password. Use when testing APIs; for JWTs use jwt-generator. Input: credentials text. Returns Authorization header. 100% client-side.

• Generate HTTP Basic Authorization headers
• Username and password input
• Copy the ready-to-use header
• +2 more

Unwrap safelink and redirect URLs to real destination. Use when verifying links; for URL parts use url-parser. Input: wrapped URL. Returns final URL. 100% client-side.

• Decode safelink and URL-shortener wrappers
• Reveal the underlying redirect target
• Copy the decoded URL

Show browser, OS, screen, and network details. Use for live device data; for parsing UA strings use user-agent-parser. Input: none, auto-detected. Returns device table. 100% client-side.

• Report browser, OS, and screen info
• Hardware and network details
• Everything computed locally

Calculate IPv4 subnets, masks, and host counts. Use for IPv4 planning; for IPv6 use ipv6-calculator. Input: CIDR or mask. Returns subnet table. 100% client-side.

• CIDR-to-subnet details and vice versa
• Usable host range and counts
• Wildcard mask calculation
• +1 more

Convert IPv4 between dotted, hex, integer, and binary. Use for format shifts; for subnet math use ipv4-subnet-calculator. Input: IPv4 address. Returns all formats. 100% client-side.

• Convert IPv4 between decimal, hex, binary, and dotted
• Real-time conversion across all formats
• Copy any representation

Expand CIDR or dash ranges into IP lists. Use when enumerating hosts; for subnet calc use ipv4-subnet-calculator. Input: range text. Returns IP list. 100% client-side.

• Expand CIDR blocks to individual IPs
• Supports large ranges with pagination
• Export the full IP list

Generate private IPv6 ULA prefixes per RFC 4193. Use for lab networks; for subnet math use ipv6-calculator. Input: optional seed. Returns ULA prefix. 100% client-side.

• Generate random IPv6 ULA addresses
• Custom global ID and subnet prefixes
• Copy generated addresses

Look up HTTP status code meanings and fixes. Use as quick reference; for header debug use http-header-parser. Input: code or search. Returns description. 100% client-side.

• Reference for all HTTP status codes
• Searchable by number or phrase
• Copy any status code

Calculate IPv6 subnets, expansion, and compression. Use for IPv6 planning; for IPv4 use ipv4-subnet-calculator. Input: IPv6/CIDR. Returns subnet details. 100% client-side.