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Online Nmap

Learn Nmap network discovery online using a training target. Read port states and service information, then continue with authorized network-scanning labs.

  • Free online practice
  • Real LabEx environments
  • No installation
  • Port states
  • Service discovery
  • Network inventory
Learn Nmap

Nmap Terminal· Ready

Open Nmap Lab
Welcome to the LabEx Nmap Terminal. Press Enter to run your first command. Type help for session commands.
Commands run locally in your browser.

Start here

Quick Start with Nmap Playground

Load a task into the terminal, then press Enter to see the result. Each example works in the introductory session on this page.

Inspect the local target

Read the sample open ports on the training localhost.

nmap localhost

Inspect a single port

Limit the exercise to the training HTTP port.

nmap -p 80 localhost

Identify services

Read service labels for the sample target.

nmap -sV localhost

Discover the sample host

Practice host discovery without scanning ports.

nmap -sn localhost

Scan two ports

Limit the sample scan to SSH and HTTP.

nmap -p 22,80 localhost

Inspect a closed port

Learn the difference between a closed port and the open sample HTTP port.

nmap -p 443 localhost

Read the version

Inspect the sample scanner version.

nmap --version

Skip DNS resolution

Practice the option that disables reverse DNS lookup.

nmap -n localhost

No setup needed

How the Nmap Playground Works

Learn Nmap network discovery online using a training target. Read port states and service information, then continue with authorized network-scanning labs.

Start with the short command exercises above. When you are ready for a project, open the linked LabEx lab to work with real tools in an online Linux environment, with step-by-step guidance and immediate feedback.

Build practical Nmap skills

  • Port states
  • Service discovery
  • Network inventory
Explore Nmap Labs

Keep learning

Learn Nmap with Hands-On Labs

Build on your Nmap experiments with a structured skill tree. Explore the skills, choose a guided lab, and practice each concept in an online environment.

Learn Nmap

Follow the Nmap Skill Tree to connect fundamentals with practical tasks and projects.

Explore the Skill Tree →

Practice Nmap

Work through a guided learning environment and get hands-on experience with Port states, Service discovery, Network inventory.

Open hands-on practice →

Online Nmap FAQ

What can I learn with Nmap?

Learn host discovery, port scanning, and service identification. Run hands-on scans in the linked lab against its training targets and inspect the results.

Is the Nmap Playground free?

The introductory exercises are free. Sign in for a complete LabEx environment; session duration and resources depend on your lab and plan.

Do I need to install software?

No local installation is required. Sign in and open the lab in a modern browser. Follow the lab instructions to configure software inside the environment.

Where can I use more commands and features?

This preview supports a limited command set. Sign in and launch the Nmap lab for more commands, packages and services. Available software and permissions depend on the selected lab.

How do I continue learning Nmap?

Follow the Nmap Skill Tree for guided labs and challenges. Practice regularly, inspect command output and ask Labby for help.

Related Playgrounds

View all playgrounds →

Online Kali Linux

Online Wireshark

Online Linux Terminal

Your next step

Ready to practice Nmap?

Continue with real tools, guided labs, and Labby assistance.

Try LabEx Nmap Labs