Downloads

Here you can download an “all platforms” version of ImageJ, without a bundled Java or extra extensions.

Unfortunately, due to the ongoing transition from Java 6 to Java 8, this download of “plain ImageJ2” cannot currently be updated to the latest Java-8-compatible version. See the Java 8 page for details. For the time being, we recommend using the Fiji distribution of ImageJ to stay current with updates.

Distributions of ImageJ

These downloads bundle ImageJ with a curated collection of plugins pre-installed.

Fiji

Bio7

System requirements

ImageJ will run on any system that has a Java 8 (or later) runtime installed. This includes, but is not limited to:

Windows XP, Vista, 7 or 8 with Java installed from java.com
Mac OS X 10.8 “Mountain Lion” or later with Java installed from java.com
Ubuntu Linux 12.04 LTS or later with OpenJDK 8 installed

Installation

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. See also imagej/imagej#72.

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

Troubleshooting

Many common questions are answered on the FAQ and Troubleshooting pages.
If you encounter bugs, please see the Getting Help page.

Source code

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