IP Tools Tools

Lookup, validate IPs.

14 free ip tools tools — no sign-up, runs in your browser.

Reviewed by The Markvibe Team · Last updated 2026-06-28

The complete guide to ip tools

This page is the hub for everything ip tools on Markvibe. Lookup, validate IPs. Every tool below runs in your browser — your files and text never leave your device. Use the cluster as a workflow: pick the tool that matches the job, then jump to a related one when the next step calls for it.

Look up IP info.

Query DNS records.

WHOIS info for a domain.

HTTP Header Checker

Inspect HTTP headers.

User Agent Parser

Parse user-agent strings.

IPv4 Subnet Calculator

Compute hosts and netmask for any CIDR.

CIDR to Netmask Converter

Convert CIDR /n notation to a dotted netmask.

Netmask to CIDR Converter

Convert a dotted netmask back to CIDR notation.

IPv4 to Binary Converter

Convert an IPv4 address to dotted-binary.

Binary to IPv4 Converter

Convert a dotted-binary string back to IPv4.

IPv4 to Decimal Converter

Convert an IPv4 address to its decimal form.

Decimal to IPv4 Converter

Convert a decimal number to an IPv4 address.

Compute IPv4 subnet info from CIDR.

Mac Address Generator

Generate random MAC address.

Keep going — these categories pair well with ip tools workflows.

Browse all Markvibe tools →