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YAT :: Yet Another Terminal :: Engineering, testing, debugging

4.9 Stars (13)
352 Downloads (This Week)
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YAT :: Yet Another Terminal :: Engineering, testing and debugging of serial communications :: Supports RS-232/422/423/485 as well as TCP/IP Client/Server/AutoSocket, UDP/IP Client/Server/PairSocket and USB Ser/HID :: Optimized for simple command sets of e.g. embedded systems

YAT Web Site


  • Serial terminal (connection endpoint) for engineering and testing purposes
  • Single-line text commands; multi-line text commands; files
  • Unlimited number of predefined commands; history of recent commands
  • Escapes for bin/oct/dec/hex like "\h(4F 4B)" as well as C-style "0x4F" and "0b01001111"
  • Escapes for ASCII controls like "<CR><LF>" as well as C-style "\r\n"
  • Commands like "\!(EOL)", "\!(NoEOL)", "\!(Delay)", "\!(LineDelay)", "\!(LineInterval)", "\!(LineRepeat)"
  • Option to automatically trigger a response
  • Support for numerous single- and multi-byte character encodings
  • Unicode value representation
  • Versatile monitoring and logging of sent and received data
  • Formatting options for excellent readability
  • Advanced options for text and binary communication
  • Advanced options for in-depth RS-232/422/423/485 debugging of flow control, break and buffering
  • Workspace supporting unlimited terminals
  • Fully keyboard operable
  • Versatile shell/PowerShell command line including head-less operation
  • The perfect replacement for HyperTerminal or good ol' fashioned Windows 3.x Terminal


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User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Best terminal on Win 7

    Posted 09/12/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Really amazing piece of software. I love the interface, support for UART and TCP/IP, being able to save a configuration, the logging facility (once I discovered it...) and user defined messages. The only thing that is really lacking is the ability to open a UART port in spy mode (unless I'm missing something?). It is surprisingly useful to monitor a UART link without interfering.

    Posted 03/10/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Best Terminal application I found in years. Great USB HID terminal App .

    Posted 10/16/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I needed a terminal which doesn't send each character instantly. For this purpose this software is the best i found out there. I'd like to see something like repeated sending of predifined text and then this program would be really perfect.

    Posted 07/18/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    You don't have a command burst feature which can sends a command continuously with a small delay after each command sent. I would like to have a feature like this to test my automation controller which the RS-485 serial traffic is at a rate of 1-10ms. Should have it to test most hardware hardware. Writing a firmware for a protocol usually is easy because everything is in the protocol documentations. What is not easy is to deal with possible real-world fast serial traffic. For example, a Modbus RTU slave hardware might get a command receiving rate of 10ms from the master. Why? coz each master may have around 32 slaves under it. The customer don't want to wait for 1 minute just to receive a complete response from all slaves. You got what I mean why we need the autosend / burst mode for sending data in YAT. Good luck my friends..

    Posted 11/13/2014
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Intended Audience

Information Technology, Science/Research, Manufacturing, Telecommunications Industry, Advanced End Users, Developers

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