Wireshark

Wireshark is an open-source network protocol analyzer. It allows users to capture and interactively browse traffic on a computer network.

Key Features

• Capture live network data in real-time.
• Deep inspection of hundreds of protocols.
• Rich VoIP analysis capabilities.
• Multi-platform support (Windows, macOS, Linux).
• Powerful display filters for focused analysis.
• Export data in various formats for reporting.

Pros

• Completely free to use and open-source.
• Highly customizable with extensive plugins.
• Active community support and frequent updates.
• User-friendly interface with advanced features.

Cons

• Steep learning curve for beginners.
• Can be overwhelming with large data sets.
• Limited advanced features compared to paid tools.
• Export functionality may have format restrictions.