UDP Protocol Visualizer

User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides fast, lightweight data transmission without reliability guarantees. Learn UDP packet structure, port numbers, and checksum validation.

Specification: RFC 768
Protocol:
Try these examples to get started:

Ready to Parse UDP

Select an example above or enter your own hex data to get started

Choose an Example
Click one of the example chips above to auto-fill hex data
Or Paste Your Own
Paste hex packet data directly into the input field
Click Parse
Hit the Parse button to see the field breakdown
Learn UDP FormatView Example Page

AI interpretation

Parsed by ByteLens

Use the current parsed packet as trusted context, then ask AI for interpretation.

Byte Grid

No data to display. Enter hex data and click Parse.

Parsed Fields

No fields parsed yet.
Protocol Configuration

About UDP Protocol

User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides fast, lightweight data transmission without reliability guarantees. Learn UDP packet structure, port numbers, and checksum validation.

Protocol Fields

  • Source Port: Source port number (0-65535)
  • Destination Port: Destination port number (0-65535)
  • Length: Length of UDP header and data in bytes (minimum 8)
  • Checksum: Checksum for error detection (optional in IPv4, mandatory in IPv6)

How to Use This Tool

  1. Enter hexadecimal packet data in the input field above
  2. Click "Parse" to visualize the UDP packet structure
  3. Hover over bytes in the grid to see field mappings
  4. Review parsed fields in the detailed breakdown panel
  5. Export data in JSON, CSV, or binary format if needed