> ## Documentation Index
> Fetch the complete documentation index at: https://docs.projectdiscovery.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Naabu Overview

> A Go-based port scanning tool to quickly enumerate valid ports

# What is **Naabu?**

Naabu is a port scanning tool written in Go that enumerates valid ports for hosts in a fast and reliable manner. It is a really simple tool that does fast SYN/CONNECT/UDP scans on the host or list of hosts and provides all ports that return a reply.

## Features and capabilities

* Fast And Simple **SYN/CONNECT/UDP** probe based scanning
* Optimized for ease of use and **lightweight** on resources
* **DNS** Port scan
* **Automatic IP Deduplication** for DNS port scan
* **IPv4/IPv6** Port scan (**experimental**)
* **Passive** Port enumeration using Shodan [Internetdb](https://internetdb.shodan.io)
* **Host Discovery** scan (**experimental**)
* **NMAP** integration for service discovery
* Multiple input support - **STDIN/HOST/IP/CIDR/ASN**
* Multiple output format support - **JSON/TXT/STDOUT**

## Additional Naabu Resources

As an open source tool with a robust community there are a lot of community-created resources available.
We are happy to share those to offer even more information about our tools.
<i>ProjectDiscovery’s httpx should not be confused with the httpx python library.</i>

<Note>Sharing these resources **is not formal approval or a recommendation** from ProjectDiscovery.
We cannot provide an endorsement of accuracy or validation that content is up-to-date. Anything shared here should be approached with caution.</Note>

* [https://mrshan.medium.com/naabu-port-scanner-why-you-should-use-it-947d8ca025df](https://mrshan.medium.com/naabu-port-scanner-why-you-should-use-it-947d8ca025df)
* [https://highon.coffee/blog/naabu-cheat-sheet/](https://highon.coffee/blog/naabu-cheat-sheet/)

## Support

Questions about using Naabu? Issues working through installation? Cool story or use case you want to share? Get in touch!

Check out the [Help](/help) section of the docs or reach out to us on [Discord](https://discord.com/invite/projectdiscovery).