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ImageJ for Mac

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Publisher's Description

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User Reviews

2 stars

"Great application - if you know how to use it."

August 24, 2010  |  By gordonpritchard

 |  Version: ImageJ 1.43u


This review was originally posted on
The app works great but the documentation sucks. I'd like to see more info about how to accomplish tasks rather than just the basics of how a tool works. For example, I'd like to measure the perimeter of halftone dots (i.e. a repeating pattern). I've figured out how to measure the perimeter of an individual do - but not multiple dots within the same image. The documentation is no help.

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4 stars

"ImageJ is great"

January 09, 2009  |  By wraggj

 |  Version: ImageJ 1.42f


This review was originally posted on
We have been using it for years at my University. Keeping in mind the price, and the collaborative method used to develop it, I think it is an awesome product. It is very versatile, and we use if for electron microscopy, astronomical images, and everything in between. It is mostly designed for medical/biology uses though.

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4 stars

"No 16-bit Support"

September 05, 2003  |  By VersionTrackerUserOpinion

 |  Version: ImageJ 1.31g


This review was originally posted on
This is a nice program and it is FREE, but the fact that it doesn't support 16-bit files makes it less than a 5-star effort.

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4 stars

"Worthy Successor"

July 23, 2003  |  By blanford

 |  Version: ImageJ 1.31b


This review was originally posted on
This program is amazing and is a worthy successor to the Mac-only NIH image. On our tight budget, we get high-quality image processing tools for free. The incorporation of the FFT filters into the main distribution was a big step forward: I never boot up Classic any more to use NIH Image.

The interface is not very Mac-like and is annoying, probably due to the cross-platform nature of the code. For heavy duty image processing (multiple FFTs or volume rendering), the program runs pretty slowly. I don't expect the speed to improve, but the features keep getting more numerous (but it doesn't feel bloated) and the bugs are rapidly addressed.

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Full Specifications

What's new in version 1.50e
  • Thanks to Curtis Rueden and Brandon Hurr, the Stack to Images, Window>Tile and Window>Cascade commands, and non-batch mode macros that process multiple images, run faster on Macs.
  • Pressing "i" (Image>Show Info) when no images are open now displays useful information instead of a "No images are open" error.
  • Added a "Show all" checkbox and a "Help" button to the multi-point tool's options dialog box.
  • Thanks to Peter Haub, the Selection Rotator tool, available in the toolbar's ">>" menu, now rotates about the selection centroid and is recordable.
  • Thanks to Radoslaw Ejsmont, ImageJ's directory chooser, on Mac OS X, now uses the JFileChooser when the "Use JFileChoose to open/save" option is enabled in Edit>Options>Input/Output. Unlike the native directory chooser, JFileChooser still has a title bar on OS X 10.11 (El Capitan).
  • Thanks to Anton Jormescu and John Wolodzko, you can again change the views in Image>Stacks>Orthoganal Views by clicking, but not dragging, in the YZ and XZ planes.
  • Thanks to John Wolodzko, added the Plot.showValues macro function, which displays plot window values in the Results table.
  • Thanks to Peter Haub, added the Roi.getContourCentroid() method.
  • Thanks to Jan Eglinger, fixed a bug that caused Image>Adjust>Size, when using bilinear or bicubic interpolation, to shift positions of pixels by 1.0 in X, 0.5 in Y and 0.5 in Z.
  • Thanks to Michael Schmid, fixed a bug that caused the Brightness/Contrast adjuster's "Apply" function to not be undoable for full images or rectangular selections with 8-bit and 16-bit images.
  • Thanks to Michael Schmid, fixed a bug that caused the Brightness/Contrast adjuster to hang with RGB images when there was a non-rectangular selection extending beyond image boundary.
  • Thanks to Bob Hamilton, fixed bugs that caused the Run to Insertion Point macro debugger command to fail and the debugger to sometimes behave erratically.
  • Thanks to David Gault, fixed a memory leak when closing composite color images.
  • Thanks to Jan Eglinger, fixed a bug with the "d" (Draw) keyboard shortcut that caused it to not be correctly recorded.
  • Thanks to Anton Jormescu, fixed a bug in the Image>Stack>Tools>Grouped Z Project command that changed the Z and T dimensions of the original stack, which caused the Duplicate and Synchronize Windows commands to not work as expected.
  • Thanks to Carl Vandewater, fixed a bug that could cause Image>Color>Merge Channels to throw an exception when an input file name was shorter than three characters.
  • Thanks to Till Bretschneider, fixed a bug on OS X and Java 8 that caused copying of text from the macro recorder to fail.
  • Thanks to Saibal Mitra, fixed a v1.50d regression that caused the Process>Math>Macro command to not work correctly with 32-bit images.
  • Thanks to Michael Schmid, fixed a v1.49 regression that caused NaN values to not be correctly handled in plots.
Publisher NIH
Publisher web site
Release Date November 24, 2015
Date Added November 24, 2015
Version 1.50e
Category Digital Photo Software
Subcategory Photo Editors
Operating Systems
Operating Systems Mac OS X 10.10/10.11/10.5 Intel/10.5 PPC/10.6 Intel/10.7/10.8/10.9
Additional Requirements Java 1.5 or higher
Download Information
File Size 5.45MB
File Name External File
Total Downloads 13,879
Downloads Last Week 18
License Model Free
Limitations Not available
Price Free

Previous Versions:

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