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System requirements

ImageJ will run on any system that has a Java 6 (or later) runtime installed. This includes, but is not limited to:

  1. Windows XP, Vista, 7 or 8 with Java installed from java.com
  2. Mac OS X 10.5 "Leopard" with an Intel 64-bit processor with the Java 6 update
  3. Mac OS X 10.6 "Snow Leopard" (Java 6 is preinstalled)
  4. Mac OS X 10.7 "Lion" or later with Java installed from java.com
  5. Ubuntu Linux with sun-java6-jre or openjdk-6-jre installed from the package manager

Please note that we currently test ImageJ mostly with Oracle Java 6. We have done a limited amount of testing with OpenJDK 7 and with Oracle Java 8, and things superficially work, but there may be additional bugs in those cases. Feel free to report any such issues to the Mailing Lists.

Troubleshooting

  • If you updated and ImageJ does not work anymore, you need to follow these instructions.
  • If you encounter bugs, there are many ways to get help; please see the Getting Help page.

Download

Fiji continuous release
The latest version of Fiji is automatically and continuously built by the ImageJ Jenkins server.
Fiji-logo-1.0-128x128.png All platforms (no JREs) Win.png Windows (32-bit) Osx.png OS X Tux.png Linux (32-bit)
Windows (64-bit) Linux (64-bit)


Fiji Life-Line version, 2014 June 2
As announced in this blog post, we updated ImageJ2 with some rather dramatic changes under the hood. The packages below reflect Fiji as of June 2nd, 2014 and are offered here just in case the continuous build (or an updated version) above broke a formerly working operation that is desperately needed, like, right now.
Fiji-logo-1.0-128x128.png All platforms (no JREs) Win.png Windows (32-bit) Osx.png OS X Tux.png Linux (32-bit)
Windows (64-bit) Linux (64-bit)


Fiji Life-Line version, 2013 July 15
As announced in this mail, we join the legions of construction workers digging up the streets during the second half of July 2013 (i.e. we also use the slow summer month to break things in order to make them better), incorporating extensive changes to reconcile Fiji with ImageJ2. The packages below reflect Fiji as of July 15th, 2013 and are offered here just in case the continuous build (or an updated version) above broke a formerly working operation that is desperately needed, like, right now.
Fiji-logo-1.0-128x128.png All platforms (no JREs) Win.png Windows (32-bit) Osx.png OS X Tux.png Linux (32-bit)
Windows (64-bit) Linux (64-bit)


ImageJ development snapshot
You can download the latest DEVELOPMENT, UNSTABLE application bundle of ImageJ. This build includes the latest changes on the master branch of the source repository. It has not been thoroughly tested and may contain new bugs.
Imagej2-128.png All platforms (no JREs)


See also:

Installation

ImageJ and Fiji are distributed as portable applications. That means that you do not have to run an installer; just download, unpack and start it.

For more detailed instructions, see the installation walkthroughs:


Warning.png
Caution: "Program Files" not recommended!
If you are installing ImageJ on Windows, we strongly recommend that you store your ImageJ.app directory somewhere in your user space (e.g., "C:\Users\[your name]\ImageJ.app") rather than in "C:\Program Files" or other system-wide directory. If you move ImageJ.app to such a directory, modern versions of Windows will deny ImageJ write permission to its own directory structure, preventing it from being able to update.


Source code

See the source code page for details on obtaining the ImageJ and Fiji source code.

Java WebStart

Java WebStart is a means to deploy full Java applications via web, without the need to install anything.

For some time, Fiji provided two WebStart versions:

Both were updated every night (to be precise, some time after 04:15 central European time).

However, Java WebStart was not used all that often, and after a server meltdown in Dresden the Fiji web server was built back up in Madison, WI, and WebStart was not put back into action as of February 2014.

Packages for Debian / Ubuntu

We used to offer Debian packages. Unfortunately, for a variety of reasons, we are withdrawing support for these packages until such time as someone is able to maintain them properly, so please switch to using the Linux downloads above instead.

If you are a Debian packaging expert who would like to address this situation, we would love to have your help—please join us in IRC or contact the fiji-devel mailing list.