naabu is a fast port scanner written with a focus on reliability and simplicity. This is a very simple tool that does fast SYN/CONNECT/UDP scans on the host/list of hosts and lists all ports that return a reply.
It’s designed to be used in combination with other tools for attack surface discovery in bug bounties and pentests.
This is free and open source software.
Key Features
- 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.
- Host Discovery scan (experimental).
- NMAP integration for service discovery.
- Multiple input support – STDIN/HOST/IP/CIDR/ASN.
- Multiple output format support – JSON/TXT/STDOUT.
Website: github.com/projectdiscovery/naabu
Support:
Developer: ProjectDiscovery, Inc.
License: MIT License

naabu is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Terminal-Based Port Scanners | |
|---|---|
| Nmap | Network Mapper for network discovery, administration and security auditing |
| RustScan | Modern take on the port scanner |
| MASSCAN | Mass IP port scanner |
| ZMap | Fast single packet network scanner |
| naabu | Fast port scanner written with a focus on reliability and simplicity |
| Netcat | Built-in port-scanning capabilities, with randomizer |
| sx | Network scanner designed to follow the UNIX philosophy |
| unimap | Scan only once by IP address |
| havn | Fast configurable port scanner |
| Nibble | Local network scanning tool |
| XMap | Fast network scanner for large-scale IPv4 and IPv6 research |
| turbo-scanner | Port scanner and service detection tool |
Read our verdict in the software roundup.
LinuxLinks helps you discover the best free and open source software for Linux. Explore our extensive collection of recommended applications, including alternatives to popular proprietary software.We also publish software reviews, Linux tutorials, hardware reviews, free programming books and articles covering the wider open source community. Browse our Linux resources to discover more. Know a useful free and open source Linux application we haven't covered? Suggest a program for inclusion. Has your software been featured on LinuxLinks? Display one of our Featured on LinuxLinks badges on your website or GitHub README. |


Please read our Comment Policy before commenting.