Data converter

PCAP to CSV converter

To convert PCAP to CSV, drop your PCAP file in the box below. It converts straight away; press Download to save the CSV. It all happens in your browser, so your file stays on your device.

Converted on this device, never uploaded

What changes

PCAP to CSVWhat happens
ReadPCAP in both byte orders, with microsecond or nanosecond times
ColumnsNo., time from the first packet, absolute time (UTC), source, destination, protocol, length, info
DecodedEthernet and VLAN tags, Linux cooked captures, raw IP, loopback; IPv4 and IPv6, ARP, ICMP, TCP, UDP, DNS, DHCP, HTTP/1.x, TLS Client Hello (server name), QUIC
SizeThe first 1,000,000 packets are listed; the rest are counted. Files of any size are read in pieces
Spreadsheet safetyCells that start with = + - or @ get a ' in front

How to convert PCAP to CSV

  1. Add your PCAP. Drop the file in the box, or click to choose it. It becomes CSV straight away.
  2. Check the result. Look at the preview. The delimiter and value types are set for you; change them if needed.
  3. Download. Press Download to save the CSV.
Why CSV

Read a packet capture from tcpdump or Wireshark as a table: one row per packet, in a spreadsheet, without installing Wireshark.

Questions

No. It is read in your browser, on your own device. Captures often hold private traffic, so nothing leaves the computer.

No. Encrypted traffic stays encrypted; what a capture shows in the clear, such as the server name a browser asks for, is listed.

Open the capture in the file viewer: the list there sorts, filters and searches every column. The CSV opens in Excel and Sheets too.

No. The conversion happens right in your browser, so your file stays on your device. There is no account to make, either.

Related conversions