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tcpdump

Input—per 1M tokens
Output—per 1M tokens
Context—tokens
WeightsClosed

About

tcpdump is ranked #7 of 29 in network protocol analyzers on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on network protocol analyzers

Free plan
Yestcpdump.org
Traffic decryption
Yestcpdump.org

Facts

Purpose
tcpdump is a tool for network monitoring and data acquisition.github.com · 3 Oct 2026
Capture library
tcpdump uses libpcap, a system-independent interface for user-level packet capture.github.com · 3 Oct 2026
Supported systems
The project lists AIX, several BSD systems, GNU/Linux, macOS, Solaris, QNX, and Windows among platforms on which tcpdump compiles and works.github.com · 3 Oct 2026
Windows requirement
The project says Windows builds require WinPcap or Npcap and Visual Studio with CMake.github.com · 3 Oct 2026
Build requirement
Building tcpdump requires libpcap and a C99-compliant compiler.github.com · 3 Oct 2026
Distribution
The project provides source code through its public Git repository and describes native operating system packages or ports as available on many systems.github.com · 3 Oct 2026
License
The project license permits redistribution and use in source and binary forms subject to its listed conditions.github.com · 3 Oct 2026
Security reporting
The project asks users to report security issues by email to [email protected].github.com · 3 Oct 2026
Capture permissions
The installation notes say whether a user can capture traffic depends on the operating system and its configuration.github.com · 3 Oct 2026
Security consideration
The installation notes caution that users able to capture traffic may capture network traffic including passwords.github.com · 3 Oct 2026
Support and contributions
The project directs users to its source tree contribution guidelines for bugs, patches, feature requests, and general feedback.github.com · 3 Oct 2026
Package versions
The project notes that native packages are sometimes a few versions behind and that a newer snapshot can be compiled from source.github.com · 3 Oct 2026
Intended users
The README describes tcpdump as a tool for network monitoring and data acquisition, and notes its origin in research on TCP and Internet gateway performance.github.com · 3 Oct 2026

Best tcpdump alternatives

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Where it ranks on Inferse

Sources