Online Tcpdump Analyzer

Free online tool to analyze TCPDump and PCAP files. Upload your network packet captures to identify issues and monitor traffic patterns instantly.

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1,308+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

Our Online TCPDump Analyzer is a powerful, web-based tool designed to help network administrators, security professionals, and developers analyze packet capture files without installing any software. Simply upload your TCPDump or PCAP files, and our analyzer will process them to provide detailed insights into your network traffic. The tool supports various protocols including TCP, UDP, ICMP, HTTP, DNS, and more. It helps identify network anomalies, monitor bandwidth usage, detect security threats, and troubleshoot connectivity issues. All analysis is performed securely in your browser with no data stored on our servers.

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How to Use

Click the 'Upload' button to select your TCPDump or PCAP file from your device
Wait for the file to upload and process (processing time depends on file size)
View the summary dashboard showing total packets, protocols distribution, and top conversations
Use the filter options to focus on specific IP addresses, ports, or protocols
Examine detailed packet information including timestamps, source/destination, protocol details, and payload
Export filtered results or generate reports for documentation

Frequently Asked Questions

Find Quick Answers

What file formats does the TCPDump Analyzer support?

Our analyzer supports standard TCPDump (.pcap, .pcapng) files and other common packet capture formats. Files created with tools like Wireshark, tcpdump, and similar network monitoring applications are fully compatible.

Is my data secure when using the online analyzer?

Yes, all processing happens locally in your browser. We do not store your packet capture files on our servers. Your network data remains private and secure throughout the analysis process.

What is the maximum file size I can upload?

The tool supports files up to 100MB. For larger files, we recommend filtering your capture to relevant traffic before uploading or using desktop tools like Wireshark for initial processing.

Can I analyze live network traffic with this tool?

This is an offline analyzer for uploaded capture files. For live traffic analysis, you would need to capture packets using tools like tcpdump or Wireshark first, then upload the resulting file to our analyzer.

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