PCap Mobile: Packet Capture

PCap Mobile — Packet Capture & PCAP Analyzer

Capture, inspect and share network traffic straight from your Android phone — no root and no PC required. PCap Mobile records your device's traffic to standard .pcap files using Android's built-in VPN, then lets you analyze them on-device or open them later in desktop tools.

CAPTURE
• One-tap packet capture over a local VpnService (no root).
• Filter what you record — by protocol (TCP, UDP, DNS, HTTPS, Web) or by specific apps.
• Live dashboard: packets/sec, bandwidth, top apps, domains and active connections.
• Auto-stop by time or file size, plus low-storage alerts.
• Saves industry-standard .pcap files, ready for Wireshark or tcpdump.

ANALYZE (on device)
• Browse every packet with a fast, searchable list.
• Full packet details and hex view.
• Follow TCP/UDP streams to read a whole conversation.
• Protocol breakdown and per-app / per-domain usage.
• Open .pcap and .pcapng files shared from other apps — PCap Mobile appears in "Open with".

WI-FI TRANSFER (no cable, no cloud)
• Turn on Wi-Fi Transfer and open the link on any computer on the same network.
• Download your captures straight to your laptop in the browser.
• Optional password protection and one-tap direct download links.
• ZIP and unzip captures to save space or share faster.

NEW — START CAPTURES FROM YOUR COMPUTER
• With Wi-Fi Transfer on, start, filter (by protocol or app) and stop a capture right from your laptop's browser.
• A clean two-tab web page: one tab for live capture, one for your library.
• Works in the background, so you can capture other apps hands-free.

PROTOCOL RFC LIBRARY
• Read the specs behind the protocols you capture — SIP, TCP/IP, DNS, TLS, QUIC, HTTP, DTMF and more — right inside the app.

WHY PCAP MOBILE
• 100% on-device — your traffic never leaves your phone unless you choose to share it.
• Clean, modern interface built for real network debugging.
• Great for developers, QA, network and security engineers, students and hobbyists.

PRO
• Remove all ads.
• Wi-Fi file transfer to any device, plus start and filter captures from your computer.
• ZIP and unzip captures and generate direct download links.
• Choose weekly, monthly, or a one-time Lifetime unlock — pay once, keep Pro forever and support development.

GREAT FOR
Debugging apps and APIs, inspecting DNS and TLS handshakes, checking what your apps talk to, learning how protocols work, VoIP/SIP troubleshooting, and capturing evidence for bug reports.

Keywords: packet capture, packet sniffer, pcap, pcapng, network analyzer, network monitor, tcpdump, wireshark, protocol analyzer, http sniffer, dns, tls, quic, voip, sip, dtmf, network traffic, packet analyzer, capture tool.

PCap Mobile is an independent app and is not affiliated with, endorsed by, or connected to Wireshark, tcpdump or PCAPdroid. Those names refer to separate tools and are used only to describe file compatibility and comparable functionality.

Note: PCap Mobile uses the VPN permission solely to capture your own device's traffic locally. It does not route your traffic through any external server.


Keywords: packet capture, packet sniffer, network sniffer, PCAP, PCAPng, PCAP viewer, PCAP reader, network analyzer, packet analyzer, network monitor, Wireshark, tcpdump, PCAPdroid, TCP, UDP, DNS, HTTP, TLS, SNI, SIP, RTP, DTMF, VoIP analyzer, QUIC, no-root packet capture, protocol analyzer, hex viewer, network debugging, API debugging, Android network tools.

Recent changes:
Performance Improvement.
Memory adjustment.