This page describes content relating to the Fiji distribution of ImageJ. Click the logo for details.
Fiji Downloads
Windows 10 or later, x86-64 or arm64
macOS 11 “Big Sur” or later, Apple Silicon or Intel
Ubuntu 22.04 LTS or later, x86-64 or arm64
Any other system with a Java 21 runtime, except
plugins using native libraries (e.g.
3D Viewer
)
Windows XP or later, x86-64 or x86-32
Mac OS X 10.8 “Mountain Lion” or later in Intel mode
Linux on x86-64
Any other system with a Java 8 runtime, except
plugins using native libraries (e.g.
3D Viewer
)
Caution: “Program Files” not recommended!
If you are installing ImageJ2 on Windows, we strongly recommend that you store
your ImageJ2.app directory somewhere in your user space
(e.g.,
C:\Users\[your name]\ImageJ2.app
) rather than in
C:\Program Files
or
other system-wide directory. If you move ImageJ2.app to such a directory, modern
versions of Windows will deny ImageJ2 write permission to its own directory
structure, preventing it from being able to update. See also
imagej/imagej#72
.
Fiji 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
.
If you encounter bugs, please see the
Getting Help
page.
Source code
See the
source code
page for details on obtaining the Fiji source code.
Other downloads
Archive
You can download previous Fiji builds by datestamp from the archive:
Fiji-Latest
.
Fiji-Stable
.
pre-2025 builds
.
Life-Line Fiji versions
This sections offers older downloads of Fiji, preserved just prior to introducing major changes. The idea is that if something goes horribly wrong, you can fall back to a stable version.
Java 8
Here are Life-Line versions of Fiji created after the switch to Java 8.