PICAXE Programmer App

  • Windows Compatible
  • Mac Compatible
  • Linux Compatible
  • Chrome Compatible
  • Not iOS Compatible
  • Not Android Compatible

Product Details

When generating your PICAXE program online using the cloud version of Blockly for PICAXE you cannot download the program directly to the PICAXE chip. This is because web browsers do not allow online websites to access your USB/COM port for security reasons. Therefore the online Cloud version of Blockly simply saves onto your computer an ‘.axe file’ which is a compiled version of your PICAXE program.

This PICAXE Downloader App, because it is installed separately as a trusted Chrome extension app, can then open this .axe file and download it to your PICAXE chip via the AXE027 USB cable.

Note that you do not need this app for any other PICAXE software that is installed directly on your computer (PE6, AXEpad, Logicator etc.) as they can already program the PICAXE chip directly.This app is only required when using the cloud (web) version of Blockly for PICAXE. However you may also choose to export an .axe binary file from PE6, this is useful, for instance, you want to allow someone else to program a device with your code but do not want to share your original source code file.

The PICAXE Downloader is a free Chrome app and so can be installed on Windows, Mac, Linux and Chromebooks.

Note that if using the AXE027 PICAXE cable on Mac or Windows you will also need to install the AXE027 driver. Instructions for Linux or Chromebooks are here.

Using the Downloader App

  1. Click the ‘Open’ button and select the desired .axe binary image file
  2. Select the correct COM port for the AXE027 download cable
  3. Connect your PICAXE board and power and then click ‘Program’

Note that if you receive an 'update your Chrome version' upon running this app that is because your version of Chrome does not support the new API's required for PICAXE programming. You need v45 (or later) of Chrome to run this app.


PICAXE Programmer App (Windows/Mac/Linux/Chromebook) Programmer App

Revision History

Current Version: 1.0.2 1.0.2 Added COM port 'friendly name' display 1.0.1 Fixed missing icon file manifest issue 1.0.0 First public release

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  • Posted by phyrephish

    I was so excited to hear about this app. I know it is only at the first release but I'm having trouble getting it to run as continue to get the following error:

    Package is invalid. Details 'Could not load extension icon 'res/audio_128.png'.'.


  • Posted by RSanger

    Friend had same issue with macbook air

  • Posted by RSanger

    I think this is a CHROME issue. I just updated chrome on my PC and got same error message where there was no problem last month.

  • Posted by phyrephish

    Thanks all fixed...

    I have a new question. It is at all possible down the track to have programs that involve multiple slots to be combined into a single .axe file?

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