Pcap Network Analyzer
Analyze network packet capture files
100% Private & Secure
Your data never leaves your browser
Supported: .pcap, .pcapng, .cap
Upload a .pcap or .pcapng file to analyze network packets
How to Analyze Pcap Files?
Upload Pcap File
Drag and drop your packet capture file (.pcap, .pcapng, .cap) or click to browse. The file stays on your device.
View Packet List
Browse captured packets with timestamp, source, destination, protocol, and length information.
Analyze Traffic
Navigate through packets to understand network traffic patterns. All analysis happens locally in your browser.
Why Use BrowserKits Pcap Viewer?
100% Client-Side Processing
Your network capture files never leave your device. All packet parsing happens entirely in your browser.
No Wireshark Needed
Quick packet inspection without installing Wireshark or other software. Works instantly in any modern browser.
Complete Privacy
Essential for sensitive network captures. Your packet data is never uploaded to any server.
Completely Free
Analyze packet captures with no file limits, no registration, and no hidden costs.
Use Cases
Network Debugging
Troubleshoot network issues by inspecting packet captures from tcpdump, Wireshark, or other tools.
Security Analysis
Review network traffic for security audits, incident response, and threat investigation.
Protocol Study
Learn about network protocols by examining real packet captures in an educational context.
How It Works: Client-Side Processing
Your privacy is our priority. Here's why our approach is different:
Binary Parsing
Custom JavaScript parsers decode pcap and pcapng binary formats directly in your browser.
Packet Inspection
View packet details including timestamps, source/destination, protocols, and payload lengths.
Local Processing
All packet analysis happens on your device. Network captures never leave your browser.
Frequently Asked Questions
Is my pcap file uploaded to any server?
No, never. Your packet capture file is parsed entirely in your browser using JavaScript. No network data, IP addresses, or packet contents are transmitted anywhere.
What pcap formats are supported?
We support standard .pcap files (libpcap format), .pcapng (next generation), and .cap files. These are the formats used by Wireshark, tcpdump, and most packet capture tools.
Can this replace Wireshark?
This is a lightweight viewer for quick packet inspection. For advanced features like protocol dissection, filtering, and deep packet analysis, Wireshark remains the better choice. This tool is perfect for quick viewing without installation.