Kojo is Open-Source software, and is freely available. You can download and install Kojo based on the instructions provided on this page.

New Kojo Releases are announced on the Kojo Blog. You can subscribe to the Blog Feed to be notified about new releases.

Quick Download Links:

The Kojo Windows Installer (Version: Beta-160710-3)

Kojo Jar file (Version: Beta-160710-3)

Pre-requisites:

You need to have Java 6 installed on your machine to be able to run Kojo. To check the version of Java that is available on your machine, open up a command prompt and run the following command:

java -version

The reported version should be greater than 1.6.0_10. If it is not, please go to http://java.sun.com/javase/downloads/index.jsp#jre and download and install the latest version of the JRE (Java Runtime Environment).

Important Update: A recent version of the JRE - JRE 6 Update 18 (version 1.6.0_18) - has a memory problem that adversely affects Kojo. Please make sure that you're not using this version of the JRE.

If you skip the Java download/install step, and if you later encounter problems while installing Kojo, the most likely culprit is a problem with your Java version. In such a situation, you are requested to download Java from the above link and (re)install it - before proceeding with the installation of Kojo.

Instructions for downloading, installing, and running Kojo

Windows Installer

  • Press the Ctrl-F5 keys to refresh this page within your browser (to make sure you get the latest version of Kojo).
  • Download the following file and run it to Install Kojo:
  • After Kojo is installed, you can run it from the Windows Start Menu
  • If you are upgrading from an earlier version of Kojo, please read the Upgrade instructions

Jar Installer

This version of the installer contains Kojo within a runnable Java jar file. This installer is cross-platform, and works on Windows, Unix/Linux, and the Mac. To install Kojo, you need to do the following:

  • Press the Ctrl-F5 keys to refresh this page within your browser (to make sure you get the latest version of Kojo).
  • Download the Kojo Jar file (Version: Beta-160710-3) and save it at a known location on your computer (the name of the jar file has the form: install-[build-name].jar).
  • Double-click on the downloaded file from within your Internet Browser's 'Downloads' window. This should launch the Installer.
    • If the above step does not work (because of a missing association between Jar files and the Java command), do the following:
      • Open up a command prompt and go into the directory where the installer jar file is located.
      • Run the following command to install Kojo (replace installer-jar-file-name below with the actual name of the file that you downloaded):
        • java -jar installer-jar-file-name
  • After Kojo is installed, you can run it:
    • On Windows:
      • From the Start Menu
    • On Unix/Linux/Mac:
      • Go into the bin directory under the Kojo install folder and run the following command:
        • sh kojo
  • If you are upgrading from an earlier version of Kojo, please read the Upgrade instructions