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8 free online tools

Network Tools

Lookup IP details, DNS records, WHOIS domain data, port status, ping response times, and DNS propagation worldwide.

Category Overview & Feature Comparison

About Network Tools

The Network Tools collection provides browser-based utilities designed for high performance, local data processing, and complete privacy. Every tool operates entirely within your browser - no server uploads, no watermarks, and no signups required.

Tool NameKey FunctionalityClient-Side ProcessingUsage Limit
IP LookupFind detailed IP address geolocation, ISP, ASN, and map location. 100% LocalUnlimited / Free
DNS LookupQuery domain DNS records including A, AAAA, MX, TXT, NS, and CNAME. 100% LocalUnlimited / Free
WHOIS LookupRetrieve domain registration details, registrar, dates, and name servers. 100% LocalUnlimited / Free
Port CheckerCheck if a specific TCP/UDP port is open on a target server. 100% LocalUnlimited / Free
Ping ToolMeasure server latency, response time, and connection uptime. 100% LocalUnlimited / Free
DNS Propagation CheckerCheck DNS record propagation across global resolvers worldwide. 100% LocalUnlimited / Free
CIDR CalculatorCalculate CIDR subnet masks, usable IP ranges, broadcast IPs, and total host counts. 100% LocalUnlimited / Free
Subnet CalculatorDivide networks into subnets and generate detailed subnetting tables. 100% LocalUnlimited / Free