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 |
| unimap | Scan only once by IP address |
| havn | Fast configurable port scanner |
| Nibble | Local network scanning tool |
| turbo-scanner | Port scanner and service detection tool |
Read our verdict in the software roundup.
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