Wireshark allows you to merge multiple PCAP files into one using its built-in GUI. This is especially useful if you want to combine captures from different sessions, interfaces, or times into a single timeline for easier analysis.
How to Merge PCAP Files in Wireshark
You can do this entirely through the menu.
Steps:
- Open Wireshark
- Go to File > Merge…
- Choose the second capture file you want to merge with the one currently open
- In the dialog box, choose:
- Whether to insert before or after
- Or merge chronologically based on packet timestamps (recommended)
- Click Open to complete the merge
- Save the result if needed via File > Save As…