Top 12 Open-Source Alternatives to Nmap

The top open-source alternatives to Nmap are Angry IP Scanner, Wireshark, and Zabbix. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Angry IP Scanner Landing Page
1

Angry IP Scanner

Open-source and cross-platform network scanner designed to be fast and simple to use
Pricing:
- Open Source
#Monitoring Tools #Network Scanning #Network Security 32 social mentions
Wireshark Landing Page
2

Wireshark

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Performance Monitoring 11 social mentions
Zabbix Landing Page
3

Zabbix

Track, record, alert and visualize performance and availability of IT resources
Pricing:
- Open Source
- Free
#Monitoring Tools #Performance Monitoring #DevOps Tools 5 social mentions
ZMap Landing Page
4

ZMap

ZMap is a fast single packet network scanner designed for Internet-wide network surveys.
Pricing:
- Open Source
#Security #Security Monitoring #Monitoring Tools 7 social mentions
ipcalc Landing Page
5

i

ipcalc

IP Calculator. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design subnets and supernets....
Pricing:
- Open Source
#Monitoring Tools #Network Scanning #Security 9 social mentions
netcat Landing Page
6

netcat

Netcat is a featured networking utility which reads and writes data across network connections...
Pricing:
- Open Source
#Monitoring Tools #Log Management #Productivity 7 social mentions
tcpdump Landing Page
7

tcpdump

tcpdump is a common packet analyzer that runs under the command line.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Security
Datadog Landing Page
8

Datadog

See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Pricing:
- Open Source
- Freemium
- Free Trial
- $15.0 / Monthly (per host)
#Monitoring Tools #Log Management #Error Tracking 5 social mentions
Aircrack-ng Landing Page
9

Aircrack-ng

Aircrack-ng is an 802.
Pricing:
- Open Source
#Monitoring Tools #Network & Admin #Security & Privacy 1 social mentions
Nagios Landing Page
10

Nagios

Complete monitoring and alerting for servers, switches, applications, and services
Pricing:
- Open Source
#Monitoring Tools #Performance Monitoring #Log Management
Vernet Landing Page
11

Vernet

Vernet - Network Analyzer and Monitoring Tool
Pricing:
- Open Source
#Monitoring Tools #Security #Network Scanning
Zed Attack Proxy Landing Page
12

Zed Attack Proxy

The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding...
Pricing:
- Open Source
#Web Application Security #Security #Security & Privacy