Data Files

tcpdump

opens 3 file types
AT A GLANCE
Opens3 file types
Get it fromwww.tcpdump.org
Download tcpdump

On this page

3 file types verified
Last reviewed Oct 2026

Not sure what your file is?

Drop any file into our identifier - we read just the first bytes to name the format.

Identify a file

What is tcpdump?

tcpdump is listed in our database as a program that opens or converts the file formats shown on this page. The formats it works with include .CAP, .PCAPNG and .PCAP.

You can get the official version from the developer's website (www.tcpdump.org); we do not host the installer and only point you to the original source. A detailed, hand-checked description of tcpdump is on the way; for now the information here comes straight from our database.

Files tcpdump opens

3 formats
Data Files

Click any badge for full per-format details - what it is, how to open it and how to convert it.

Download tcpdump

SOURCEwww.tcpdump.orgofficial site - avoid third-party download portals

Keep exploring

programs & formats

Files tcpdump opens most

1.CAPPacket Capture file (network trace) - primary meaning
2.PCAPNGPCAP Next Generation Capture File
3.PCAPPacket Capture (libpcap) File

Free file tools

Identify an unknown file or convert images - everything runs in your browser.

Open the toolbox