Net Framework For Mac Os X

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Introduction to Mono on macOS

Mono supports macOS version 10.9 (Mavericks) and later.

You can use Mono on macOS to build server, console and GUI applications. Read below for the options available for GUI application development.

If you are interested in creating native GUI applications, use the MonoMac bindings and our MonoDevelop add-in. Read the description on MonoMac for more information on how to get started.

MonoDevelop enables developers to write desktop and web applications on Linux, Windows and Mac OS X. It also makes it easy to port.NET applications created with Visual Studio to Linux and Mac OS X maintaining a single code base for all platforms. With version 5, ASP.Net becomes an open source framework. Linux, or even Mac OS X. Plus, ASP.Net 5 brings all sorts of improvements that make applications easier to build, easier to configure.

Installing Mono on macOS

You can use Mono either as a runtime to run existing application, or as an SDK to develop new applications with Mono.

Visit the download page to find the latest macOS package. Run it and follow the instructions there, you can either get a basic runtime, or a complete runtime plus a software development kit.

If you plan on developing applications with Mono, we suggest that you also install the MonoDevelop IDE after you install Mono.

The Mono package includes:

  • The Mono Runtime
  • GUI Toolkits: Windows.Forms and Gtk# for macOS.
    • Note: the MonoMac GUI toolkit for native macOS GUI development is currently a separate download.
  • SDK: C#, Visual Basic compilers, assemblers and tools
  • XSP ASP.NET server
  • Manual pages.

This package installs as a framework into /Library/Frameworks/Mono.framework (the same way the Java packages are installed). The executable binaries can be found in /Library/Frameworks/Mono.framework/Versions/Current/bin. If you’d like to access the mono manpages you’ll have to add /Library/Frameworks/Mono.framework/Versions/Current/man to your manpath. The macOS Mono package does not include Gtk#, XSP or mod_mono. These will have to be compiled from source.

.net Framework For Mac Os X

Our packages currently require macOS 10.9 or better, for older versions, you will need to build from source code.

Using Mono on macOS

At this point, you must use Mono from the command line, the usual set of commands that are available on other ports of Mono are available.

To build applications you can use “mcs”, to run then you can use mono.

From a Terminal shell, you can try it out:

Most users would be using the MonoDevelop IDE to create their projects.

You will have a choice of GUI toolkits for building your application, from pure cross platform, to Mac-specific using MonoMac.

32 and 64 bit support

The Mono packages published on this web site provide both a 32-bit and a 64-bit Mono VM.

Starting from Mono 5.2 the mono command defaults to 64-bit, you can use the --arch=32/64 switch to control the bitness.

The 64 bit support has a few limitations today:

  • Our Windows.Forms implementation uses Carbon, and as such, it would not work with a 64-bit Mono.

Building Client Applications

There are a few choices to build client applications on macOS, you should pick the technology that better fits your goals, your choices are:

Net framework 3.5 mac os x
ToolkitRuns on LinuxRuns on WindowsRuns on MacBinding StyleLicenseStatus
MonoMacnonoyesStrongly typed C# binding to Cocoa APIsMIT X11Actively developed, builds on the design lessons from MonoTouch but still incomplete. This will be the new default binding for Mono on macOS. Separate download.
Gtk#yesyesyesStrongly typed C# binding to the cross platform Gtk+ API. Applications look foreign on macOS.LGPL v2Actively developed, cross platform. Bundled with Mono.
Windows.FormsyesyesyesCross platform implementation of Microsoft’s Windows.Forms. Applications look foreign on macOS.MIT X11The Windows.Forms API was frozen in time by Microsoft. Bundled with Mono.
MonObjcnonoyesBinding to the native Cocoa APIs, but requires manual use of Objective-C selectors to work with, relatively thin wrapper around the underlying APIs.LGPL v3Actively developed. Separate download.
CocoaSharpnonoyesBinding to the native Cocoa APIs, but requires manual use of Objective-C selectors to work with, relatively thin wrapper around the underlying APIs.MIT X11No longer developed, no longer maintained, deprecated. Bundled with Mono.

Running Mono applications on macOS

Running applications on macOS is very similar to linux systems, from the terminal:

For GTK# applications, it’s easiest to run them the same way but using xterm from


Net Framework For Mac Os X

Mono’s implementation of the System.Windows.Forms API is built on top of Carbon and can only run with Mono on 32 bit systems. The look and feel of System.Windows.Forms applications mimics the Windows style and does not currently render like a native macOS application.

Third Party Libraries

ObjC# is a transparent two way bridge that allows the CLR to access the rich underlying ObjectiveC frameworks as well as providing direct access to the CLR frameworks from the ObjectiveC language.

Uninstalling Mono on macOS

Run this script in a terminal:

You have a Mac,

Net Framework 3.5 Mac Os X

.Net Framwork is for Windows and normally you would have to install Windows either into BootCamp or

a virtual machine software (better,easier, not as powerful as direct install, fine if you don't need it) like VMFusion (best), Parallels Desktop (best) or the free Virtualbox (works)

But there is a Open Source .Net framework called Mono

I don't have any expereince with this, so your on your own

.net Framework For Mac Os X Download

Perhaps that's for the developers to implement with their programs, I don't know if there is a Mac client so you can access .Net

.net Framework For Mac Os X

Ask the website your visiting to do something so your Mac can also visit and use the site.

Apr 4, 2012 7:54 PM