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Hardware Sniffers for IO Ninja

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Workgroup License£330.00

This license is for a company that needs per-seat (rather than per-person) licenses.

Serial Tap +  Personal license for IO Ninja

Serial Tap + Personal license for IO Ninja£199.00

This is the standard package for purchasing a Serial Tap.

Included is a USB-C cable, two DB9 gender-changers, and a single-user licence for IO Ninja.

12C/SPI Tap

12C/SPI Tap£190.00

I2C/SPI Tap is an affordable sniffer for monitoring I2C and SPI communications. This device works in tandem with the I2C/SPI Tap plugin.

Ethernet Tap

Ethernet Tap£199.00

Ethernet Tap is an affordable sniffer for monitoring Ethernet communications. This device works in tandem with the Ethernet Tap plugin.

Personal License£80.00


IO Ninja is not freeware.

You may evaluate IO Ninja free of charge as long as you need. However, if you keep using it, you must purchase a non-evaluation license and register your copy of IO Ninja.


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IO Ninja 3.12.1 is out!

Service Release

  • Fixed crash on select-word on an empty line in plain-text binary view;
  • Fixed lock-down on unplugging Ethernet Tap or I2C/SPI Tap during capture;
  • Fixed non-selectable merge-boundaries in text lines.


IO Ninja 3.12.0

Major Update

  • New Ethernet Tap hardware sniffer & plugin;
  • Details pane for the master-log-vs-details representation;
  • Deep-find — search goes through both the master log and details pane;
  • Process name detection in Serial, Pipe Monitor, Mailslot Monitor;
  • Post-capture filtering using file name, file ID, process name and PID in Pipe Monitor, Mailslot Monitor;
  • Added support for multiple protocols to Pcap Sniffer;
  • Post-capture filtering (a.k.a. view filter) in Pcap Sniffer;
  • Export to .pcap in Pcap Sniffer;
  • Fix for the SIGSEGV due to a write to a read-only page crash in Tibbo Device Monitor on Linux v5.3.0 and above (AMD64 & X86 architectures);
  • Fix for the bouncing app icon on Mac when IO Ninja is in the background;
  • Support for empty datagrams in UDP Socket;
  • Tables in the Ninja Scroll engine — representers can now simply use tabulation (\t) to create automatically formatted tables;
  • Introspection facilities in Jancy — scripts can now inspect their structure at runtime (perfect for writing protocol analyzers);
  • Lazy parsing in Jancy — the script code base got much bigger, but the plugins start-up time actually decreased!

For a full list of changes see changelog.txt (also included in all installation packages)