Easy packet capture
Simple, but powerful. Choose an interface, start recording, and keep packet capture calm even when the network is busy.
TCP Viewer
Native Packet Viewer for Mac
See every packet clearly on your Mac
Capture, filter, and inspect network packets on your Mac without the complexity.
Download macOS App
Apple Silicon & Intel - macOS 15+
Built by the Proxyman Team for network debugging on Mac
Inspect without the clutter
Whatever you capture, TCP Viewer keeps the important traffic readable. Filter noise, open decoded fields, and save evidence for the next debug session.
Grouped traffic
Group packets by domain or client
Collapse busy captures into readable conversations by domain or client, then jump straight to the traffic that matters.
Protocol filters
Quickly filter TCP, UDP, DNS, and more
Tap protocol chips to focus the packet list without rebuilding a complex filter every time the capture changes.
Export captures
Save evidence as PCAP or PCAPNG
Package the exact packets you need into standard capture files for Wireshark, teammates, or the next debug session.
Export selected packets
Capture range
AllFilteredSelected
Packets1,284
Duration02:16
ProtocolsTCP, DNS, TLS
File format
.pcapngFull metadata.pcapClassic format
Filename
filtered-capture.pcapng
Packet detail
Read Wireshark-grade packet data
Open decoded fields, protocol trees, byte ranges, and field values with Wireshark-grade depth in a focused Mac interface.
GPL open source
Inspect the app, not just the packets.
TCP Viewer is open source under the GPL license, so developers and security-sensitive teams can review how capture, decoding, and packet handling work.
ProxymanApp/TCPViewer
GPL-2.0Public repoNative macOS
license: GPL v2
source: github.com/ProxymanApp/TCPViewer
review: capture pipeline, decoders, packet UI
Built in the open for people who want their network tools to be understandable.
Audit the code, follow releases, or contribute directly from GitHub.
Built by Proxyman Team
Crafted by the Proxyman Team
From the makers of Proxyman and Tiny Shield. TCP Viewer carries the same Mac-first care into packet capture, filtering, and inspection.
Used by 500,000+ usersRead testimonials
Trusted by developers
Privacy first
Built for macOS
