Catchpoint
Catchpoint monitors the availability and speed of websites and online services from over 3,000 agents, for large web and IT teams, on the Web.
Web · Linux · Windows · macOS Paid
Networking apps
Software to design, emulate, run and monitor computer networks: emulators, routing suites, inventory and traffic analysis.
Catchpoint
Cisco ThousandEyes
Cisco ThousandEyes tracks Internet and SaaS performance from agents spread worldwide, for network and IT teams, used on the Web with Linux agents.
Web · Linux · Windows · macOS Free trial
Masscan is a free, extremely fast port scanner for auditors and security teams, built from source on Linux, macOS or Windows, for authorised networks only.
Linux · macOS · Windows Open source
Ostinato
Ostinato is a paid network traffic generator with a graphical interface and a Python API, for testing switches and links on Windows, macOS and Linux.
Windows · macOS · Linux Paid
Scapy
Scapy is a free Python library for crafting, sending, sniffing and decoding network packets, built for security engineers on Linux, macOS and Windows.
Linux · macOS · Windows Open source
ntopng
ntopng is a web-based network traffic probe from ntop for administrators and security analysts, with packages for Linux, Windows and macOS.
Linux · Windows · macOS · Web Open source
EVE-NG
Multi-vendor network emulation platform you install on a server or VM and control from a web browser, with a free tier for learning.
Windows · macOS · Linux Free with in-app purchases
GNS3
Free, open source network emulator that runs real virtual routers and firewalls on a PC to build and test networks, on Windows, macOS and Linux.
Windows · macOS · Linux Open source