OsiriX 5.8.5
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(8) 4.8125

3D medical image processing software with DICOM/PACS support.   Free
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OsiriX is an image processing software dedicated to DICOM images (".dcm" / ".DCM" extension) produced by medical equipment (MRI, CT, PET, PET-CT, ...) and confocal microscopy (LSM and BioRAD-PIC format). It can also read many other file formats: TIFF (8,16, 32 bits), JPEG, PDF, AVI, MPEG and Quicktime. It is fully compliant with the DICOM standard for image comunication and image file formats. OsiriX is able to receive images transferred by DICOM communication protocol from any PACS or medical imaging modality (STORE SCP - Service Class Provider, STORE SCU - Service Class User, and
What's New
Version 5.8.5:
  • 3D engine updated to support high dynamic voxels
  • Auto-layout graphic user interface
  • New 3D ROI reconstruction: 3D iso-contours
  • KDU 7.3.3
  • Better support for multi-monitors configurations
  • Several bug corrections
Intel, OS X 10.8 or later

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OsiriX User Discussion (Write a Review)
ver. 5.x:
Your rating: Now say why...

sort: smiles | time


tjekov37 reviewed on 16 Mar 2014
Pleas tell me, where i can download OsiriX ( 2.7.1- 2.7.5)version for MAC OSX 10.4 PPC ? HELP :-(( I need him .
[Version 5.8.5]

1 Reply


Pettifogger0712 replied on 13 Apr 2014


Jazzyguy reviewed on 01 Dec 2013
Excellent application. Even novices and laymen can view their data.
[Version 5.8.1]

1 Reply


Jazzyguy replied on 18 Dec 2013
The new VERSION rocks too!


Me2 reviewed on 09 Mar 2013
Don't know if this is significant or not. Ran Virusbarrier all night and it detected "Exploit OSX/MetaData.B" in file Localizable.strings Japanese folder. I've used this for years to read my MRI's and CT scans as an amateur but this is first time to see this. For your advise only.
[Version 5.6]

4 Replies


Me2 replied on 09 Mar 2013
Found this regarding this Trojan . . .

Me2 replied on 09 Mar 2013
Also found it in v 5.6 JUST DOWNLOADED from the Osirix website. It is in Japanese.lproj

lurkingremlin replied on 08 Sep 2013
Just checked Version 5.6 for fun (also downloaded directly from dev's website) - it is ENGLISH only, there's no Japanese.lproj file inside. Don't know what you've been downloading ;)

Me2 replied on 08 Sep 2013
Respectfully, I just checked both the MacAppStore version and this version and, indeed, the localization file for Japanese was not present so no quarantine took place. That is a positive thing. Indeed, the 'Exploit..." file I had noted originally is now absent whether it meant something in 'real world' or not. Thank you.


Xenophon reviewed on 04 Jan 2013
This is really a 5-star app for physicians with a Mac. I've been using it since the 2.x days, on OS 9, and love its power and elegance. For the past 5 years or so, I've also paid for the "64-bit" extension to support the developers, even though I have no use for the extended memory management (I only view angiograms, which are not resource-intensive).

My major gripe is that its free version stamps all images with a "Not for medical use" watermark, which is truly annoying.

This, in effect, forces even light users like myself to upgrade every year to the tune of $150-250.

Now that my license has expired, I decided not to renew it for this reason. I believe it's ill-conceived; hence the 4 star rating.

Hope Antoine reconsiders this watermark thing.
[Version 5.5.2]

1 Reply


spalte replied on 11 Sep 2013
I wrote a plugin a while ago that gets rid of the "Important Notice" dialog and the "NOT FOR MEDICAL USAGE" watermark, so folks who do no need the FDA/CE version can use the free version of OsiriX without getting nagged.

You can get it at: http://download.naturalimage.ch/UnImportantWebPage.html

Donmontalvo commented on 17 Dec 2012
I updated this application today and I was presented with an "OsiriX would like access to your contacts".


Why does this developer want access to my contacts?!

[Version 5.5.2]

2 Replies


Mikokim replied on 23 Feb 2013
Does the app have a sharing feature (via email, for example)? I've noticed that apps that support this functionality typically ask for access when launched (unless Preferences let you disable this feature). Just a guess (haven't checked out the app).

FTBZ replied on 26 Feb 2013
Because it's a medical tool and medics are always contacting their patients and colleagues. OsiriX can share and manage files and attribute it to patients/users.


Jazzyguy reviewed on 16 Dec 2012
Another Great Version of A Great And Useful App!
[Version 5.5.2]



Multimedia-Pimp reviewed on 13 Nov 2012
This is an incredible piece of free software. I recently had a couple of MRI's and when I found out I could get the scans on disk I was excited to see them. But the disk came with Windoze viewers which were no good. An immediate scan of the web brought me to Osirix. Never had any issues with this program ever. Solid. Many thanks for keeping a free version going.
[Version 5.5.1]


Jazzyguy commented on 26 Oct 2012
I like this App. I can see the CDs prepared for my Back Operation and clearly see what the Dr. was discussing with me. Excellent app.
[Version 5.5]


Xenophile commented on 15 Aug 2012
Bad link, try this:
or this download page:

Unfortunately, the free version is crippleware. You have to buy the 64 bit extension if you want to "get rid of the memory related crashes!" Yes, they really say that on their website.
[Version 5.0]

2 Replies


MacUpdate-Warren replied on 15 Aug 2012
Were you saying that one of our links was bad? They seem to be working for me. Please clarify! Thanks. :)

Xenophile replied on 05 Sep 2012
It's been fixed since I posted.

FTBZ commented on 21 Nov 2011
After an accident, I used this software to visualize the fracture of my knee. Even without medical knowledge, it is very fun ! The iPad/iPhone apps are nice too, It's very fun to impress his friends.

But I'm sure the medical staff has a more intelligent use of the software than me.
[Version 4.0]


Whytoi had trouble on 20 Nov 2011
Crash galore on startup on my MacBook Pro 13" on 10.7.2. A dialogue box would pop up asking rebuild database or not. Irrespective of which option I choose, it'll crash. Not good at 4.0.
[Version 4.0]

1 Reply


Whytoi replied on 21 Nov 2011
A follow up.

Ended up finding the OsiriX folder in ~Users/Documents and deleting it. Problem fixed.

Q: What's OsiriX's relationship with SIri?
Psummerill had trouble on 21 Apr 2011
Installed latest version. Now it crashes on "Updating database model..." and will not open. Any suggestions appreciated.
[Version 3.9]


Jef4 rated on 28 Jan 2014

[Version 5.8.5]


Alex8602 rated on 31 Oct 2013

[Version 5.8]


Utobia rated on 24 Mar 2011

[Version 3.9]

Oriapa rated on 06 Mar 2011

[Version 3.8.1]

Version Downloads:8,260
Type:Education : Science
Date:27 Jan 2014
Platform:Intel 32 / OS X
Overall (Version 5.x):
Ease of Use:
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OsiriX is an image processing software dedicated to DICOM images (".dcm" / ".DCM" extension) produced by medical equipment (MRI, CT, PET, PET-CT, ...) and confocal microscopy (LSM and BioRAD-PIC format). It can also read many other file formats: TIFF (8,16, 32 bits), JPEG, PDF, AVI, MPEG and Quicktime. It is fully compliant with the DICOM standard for image comunication and image file formats. OsiriX is able to receive images transferred by DICOM communication protocol from any PACS or medical imaging modality (STORE SCP - Service Class Provider, STORE SCU - Service Class User, and Query/Retrieve).

OsiriX has been specifically designed for navigation and visualization of multimodality and multidimensional images: 2D Viewer, 3D Viewer, 4D Viewer (3D series with temporal dimension, for example: Cardiac-CT) and 5D Viewer (3D series with temporal and functional dimensions, for example: Cardiac-PET-CT). The 3D Viewer offers all modern rendering modes: Multiplanar reconstruction (MPR), Surface Rendering, Volume Rendering and Maximum Intensity Projection (MIP). All these modes support 4D data and are able to produce image fusion between two different series (for example: PET-CT).

Osirix is at the same time a DICOM PACS workstation for medical imaging and an image processing software for medical research (radiology and nuclear imaging), functional imaging, 3D imaging, confocal microscopy and molecular imaging.

Osirix supports a complete plug-ins architecture that allows you to expand the capabilities of OsiriX for your personal needs! This plug-in architecture gives you access to the powerful Cocoa framework with an easy object-oriented and dynamic language: Objective-C.

A Wiki Manual is available.


DICOM File Support:
  • Read and display all DICOM Files (mono-frame, multi-frames)
  • Read and display the new MRI/CT multi-frame format (5200 group)
  • JPEG Lossy, JPEG Lossless, JPEG2000, RLE
  • Monochrome1, Monochrome2, RGB, YBR, Planar, Palettes, ...
  • Support custom (non-square) Pixel Aspect Ratio8, 12, 16, 32 bits
  • Write 'SC' (Secondary Capture) DICOM Files from any 2D/3D reconstructions
  • Read and display all DICOM Meta-Data
  • Read AND Write DICOM CD/DVD (DICOMDIR support)
  • Export DICOM Files to TIFF, JPEG, Quicktime, RAW, DICOM, PACS
DICOM Network Support:
  • Store User (STORE-SCU, DICOM Send)
  • Store Provider (STORE-SCP, DICOM Listener)
  • C-FIND SCU/SCP, C-MOVE SCU/SCP : Query and Retrieve studies from/to a PACS workstation
Non-DICOM Files Support:
  • LSM files from Zeiss (8, 16, 32 bits) (Confocal Microscopy)
  • BioRadPIC files (8, 16, 32 bits) (Confocal Microscopy)
  • TIFF (8, 12, 16, 32 bits), multi-pages
  • ANALYZE (8, 12, 16, 32 bits)
  • PNG, JPEG, PDF (multi-pages), Quicktime, AVI, MPEG, MPEG4
2D Viewer:
  • Customizable Toolbars
  • Bicubic Interpolation
  • Thick Slab for multi-slices CT and MRI (Mean, MIP, Volume Rendering)
  • ROIs: Polygons, Circles, Pencil, Rectangles, Point, ...
  • Multi-Buttons and Scroll-wheel mouses supported
  • Custom CLUT (Color Look-Up Tables)
  • Custom 3x3 and 5x5 Convolution Filters (Bone filters, ...)
  • 4D Viewer for Cardiac-CT and other temporal series
  • Image Fusion for PET-CT exams with adjustable blending percentage
  • Image subtraction for XA
  • Plugins support for external functions
3D Post-Processing:
  • MPR (Multiplanar Reconstruction) with Thick Slab (Mean, MIP, Volume Rendering)
  • Curved-MPR
  • MIP (Maximum Intensity Projection)
  • Volume Rendering
  • Surface Rendering
  • Stereo Vision with Red/Blue glasses
  • Export any 3D images to Quicktime, Quicktime VR, TIFF, JPEG
  • All 3D viewers support 'Image Fusion' for PET-CT exams and '4D mode' for Cardiac-CT.
  • Universal application, compiled for Intel and PowerPC processors
  • Altivec (Velocity Engine) enhanced
  • G5 alignment (for best performance on G5 processors)
  • Multi-threaded for multi-processors and dual-core processors support
  • Asyncronous reading
  • Based on the Altivec & Multi-Threaded vImage library
  • OpenGL for 2D Viewer and all 3D Viewers
  • Graphic board accelerated, with 3D texture mapping support
  • Optimized version for 3D Volume Rendering boards by TeraRecon : VolumePRO VP1000 series
Expansion & Scientific Research:
  • OsiriX supports a complete dynamic plugins architecture
  • Access pixels directly in 32-bits float for B&W images or ARGB values for color images
  • Create and manage windows
  • Access the entire Cocoa framework
  • Create and manage OpenGL views
  • Faster than IDL, Easier than ImageJ
Based on Open-Source components:
  • Cocoa (OpenStep, GNUStep, NextStep)
  • VTK (Visualization Toolkit)
  • ITK (Insight Toolkit)
  • PixelMed (David Clunie)
  • Papyrus 3.0 (Digital Imaging Unit)
  • DICOM Offis
  • OpenGL
  • XML-Expat
  • LibTIFF
  • Jasper
  • LibJPEG
Please, send any comments, bug reports and ideas to improve OsiriX!

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