Trexmi
Network ONLINE

Free Online Network Tools

Inspect DNS, IP addresses, ports, URLs, HTTP data, and other network-related values online.

17 toolsready to launch
Network CNAME Lookup CNAME Lookup checks whether a hostname is an alias, shows its canonical target and TTL, and helps diagnose DNS redirects between hostnames. Launch tool Network DNS Lookup Look up DNS records for a domain, including A, AAAA, MX, TXT, NS, CNAME, SOA, and CAA records. Launch tool Network HTTP Header Checker Inspect HTTP response headers, caching, content metadata, CORS, and common security headers for a public URL. Launch tool Network HTTP Status Checker Check the live HTTP status of a public URL, follow redirects, and review the final response and request path. Launch tool Network HTTP Status Code Lookup Look up common HTTP response codes and use detailed guides for 301, 302, 401, 403, 404, 429, 500, 502, and 503 errors. Launch tool Network IP Address Lookup Inspect a public IPv4 or IPv6 address, reverse hostname, address version, canonical form, and forward-confirmed DNS context. Launch tool Network MX Lookup MX Lookup checks a domain’s mail exchanger records, priorities, TTL values, and receiving mail servers so you can verify email DNS routing. Launch tool Network NS Lookup NS Lookup checks the authoritative nameserver records published for a domain so you can verify DNS delegation, hostnames, and TTL values. Launch tool Network Ping Test Send ICMP echo requests to a public hostname or IP address and review packet loss and round-trip timing. Launch tool Network Port Checker Test whether a TCP port on a public hostname or IP address accepts a connection and review connection timing and resolved destination. Launch tool Network Query String Parser Parse a complete URL or raw query string into structured, readable JSON without changing the original input. Launch tool Network Reverse DNS Lookup Look up the PTR hostname for a public IPv4 or IPv6 address and verify whether the hostname resolves back to the same address. Launch tool Network SSL Certificate Checker Inspect a public website TLS certificate, validity period, issuer, subject, SAN hostnames, fingerprint, and trust verification. Launch tool Network TXT Record Lookup TXT Record Lookup retrieves published DNS text records and presents SPF, verification, policy, and other TXT values in a readable report. Launch tool Network Traceroute Trace the network path to a public hostname or IP address and review each responding hop and latency. Launch tool Network URL Parser Split an absolute URL into scheme, host, port, user information, path, query parameters, and fragment. Launch tool Network WHOIS Lookup Query public WHOIS registry data for a domain and inspect registrar, dates, nameservers, statuses, and raw WHOIS output. Launch tool
About this category

What you can do with Network tools

Trexmi network tools help inspect internet infrastructure and web-request data from a focused browser interface. Check DNS-related values, IP information, ports, URLs, query strings, HTTP details, and other common networking inputs used in development and troubleshooting.

Network tools help you complete focused browser-based tasks without installing a separate application or building a complicated workflow. Choose the utility that matches the job, provide the required input, review the output, and continue working immediately.

This directory brings together 17 currently available network tools in one place. Use the live search and sorting controls to compare utilities by name, purpose, popularity, or recent updates, then open the most relevant option directly from the grid.

The collection is useful for quick one-off work as well as repeatable professional tasks. Clear descriptions explain what each network tool does before you open it, helping you avoid unnecessary steps and choose a more efficient workflow.

Common workflows

Popular ways to use Network tools

01Look up DNS and domain information

Choose a focused tool from this category, test representative input, and review the generated result before continuing your workflow.

02Inspect IP addresses and hostnames

Choose a focused tool from this category, test representative input, and review the generated result before continuing your workflow.

03Check ports and network endpoints

Choose a focused tool from this category, test representative input, and review the generated result before continuing your workflow.

04Analyze URLs and query parameters

Choose a focused tool from this category, test representative input, and review the generated result before continuing your workflow.

05Review HTTP and request-related values

Choose a focused tool from this category, test representative input, and review the generated result before continuing your workflow.

Useful answers

Questions people ask before using the tools

Clear answers about access, limits, privacy, and choosing the right workflow.

What are network tools?

Network tools are focused browser utilities that help complete a specific task without installing a desktop application or building a custom workflow.

Are Trexmi network tools free?

Most tools can be opened and tested for free. Account and PRO limits apply only where a larger workload or additional usage allowance is required.

Do network tools upload my data?

Each tool explains its processing model on the page. Browser-based tools process locally where possible, while server processors use the submitted input only to produce the requested result.

How do I choose the right network tool?

Start with the exact output you need, compare the descriptions in the directory, then test the most relevant tool with representative input before using the result in production.

Can I use these tools for professional work?

Yes. They are designed for repeatable development, content, data, QA, office, and technical workflows, but important output should still be reviewed before production use.

Will more network tools be added?

Yes. Trexmi expands existing categories as new focused workflows are implemented and tested.