Lego Digital Designer For Mac

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Unlike the software developed for Windows system, most of the applications installed in Mac OS X generally can be removed with relative ease. Lego Digital Designer is a third party application that provides additional functionality to OS X system and enjoys a popularity among Mac users. However, instead of installing it by dragging its icon to the Application folder, uninstalling Lego Digital Designer may need you to do more than a simple drag-and-drop to the Trash.

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When installed, Lego Digital Designer creates files in several locations. Generally, its additional files, such as preference files and application support files, still remains on the hard drive after you delete Lego Digital Designer from the Application folder, in case that the next time you decide to reinstall it, the settings of this program still be kept. But if you are trying to uninstall Lego Digital Designer in full and free up your disk space, removing all its components is highly necessary. Continue reading this article to learn about the proper methods for uninstalling Lego Digital Designer.

Manually uninstall Lego Digital Designer step by step:

Most applications in Mac OS X are bundles that contain all, or at least most, of the files needed to run the application, that is to say, they are self-contained. Thus, different from the program uninstall method of using the control panel in Windows, Mac users can easily drag any unwanted application to the Trash and then the removal process is started. Despite that, you should also be aware that removing an unbundled application by moving it into the Trash leave behind some of its components on your Mac. To fully get rid of Lego Digital Designer from your Mac, you can manually follow these steps:

1. Terminate Lego Digital Designer process(es) via Activity Monitor

Before uninstalling Lego Digital Designer, you’d better quit this application and end all its processes. If Lego Digital Designer is frozen, you can press Cmd +Opt + Esc, select Lego Digital Designer in the pop-up windows and click Force Quit to quit this program (this shortcut for force quit works for the application that appears but not for its hidden processes).

Open Activity Monitor in the Utilities folder in Launchpad, and select All Processes on the drop-down menu at the top of the window. Select the process(es) associated with Lego Digital Designer in the list, click Quit Process icon in the left corner of the window, and click Quit in the pop-up dialog box (if that doesn’t work, then try Force Quit).

2. Delete Lego Digital Designer application using the Trash

First of all, make sure to log into your Mac with an administrator account, or you will be asked for a password when you try to delete something.

Open the Applications folder in the Finder (if it doesn’t appear in the sidebar, go to the Menu Bar, open the “Go” menu, and select Applications in the list), search for Lego Digital Designer application by typing its name in the search field, and then drag it to the Trash (in the dock) to begin the uninstall process. Alternatively you can also click on the Lego Digital Designer icon/folder and move it to the Trash by pressing Cmd + Del or choosing the File and Move to Trash commands.

For the applications that are installed from the App Store, you can simply go to the Launchpad, search for the application, click and hold its icon with your mouse button (or hold down the Option key), then the icon will wiggle and show the “X” in its left upper corner. Click the “X” and click Delete in the confirmation dialog.

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3. Remove all components related to Lego Digital Designer in Finder

Though Lego Digital Designer has been deleted to the Trash, its lingering files, logs, caches and other miscellaneous contents may stay on the hard disk. For complete removal of Lego Digital Designer, you can manually detect and clean out all components associated with this application. You can search for the relevant names using Spotlight. Those preference files of Lego Digital Designer can be found in the Preferences folder within your user’s library folder (~/Library/Preferences) or the system-wide Library located at the root of the system volume (/Library/Preferences/), while the support files are located in '~/Library/Application Support/' or '/Library/Application Support/'.

Open the Finder, go to the Menu Bar, open the “Go” menu, select the entry: Go to Folder... and then enter the path of the Application Support folder:~/Library

Search for any files or folders with the program’s name or developer’s name in the ~/Library/Preferences/, ~/Library/Application Support/ and ~/Library/Caches/ folders. Right click on those items and click Move to Trash to delete them.


Meanwhile, search for the following locations to delete associated items:

  • /Library/Preferences/
  • /Library/Application Support/
  • /Library/Caches/

Besides, there may be some kernel extensions or hidden files that are not obvious to find. In that case, you can do a Google search about the components for Lego Digital Designer. Usually kernel extensions are located in in /System/Library/Extensions and end with the extension .kext, while hidden files are mostly located in your home folder. You can use Terminal (inside Applications/Utilities) to list the contents of the directory in question and delete the offending item.

4. Empty the Trash to fully remove Lego Digital Designer

If you are determined to delete Lego Digital Designer permanently, the last thing you need to do is emptying the Trash. To completely empty your trash can, you can right click on the Trash in the dock and choose Empty Trash, or simply choose Empty Trash under the Finder menu (Notice: you can not undo this act, so make sure that you haven’t mistakenly deleted anything before doing this act. If you change your mind, before emptying the Trash, you can right click on the items in the Trash and choose Put Back in the list). In case you cannot empty the Trash, reboot your Mac.

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Tips for the app with default uninstall utility:

You may not notice that, there are a few of Mac applications that come with dedicated uninstallation programs. Though the method mentioned above can solve the most app uninstall problems, you can still go for its installation disk or the application folder or package to check if the app has its own uninstaller first. If so, just run such an app and follow the prompts to uninstall properly. After that, search for related files to make sure if the app and its additional files are fully deleted from your Mac.

Automatically uninstall Lego Digital Designer with MacRemover (recommended):

No doubt that uninstalling programs in Mac system has been much simpler than in Windows system. But it still may seem a little tedious and time-consuming for those OS X beginners to manually remove Lego Digital Designer and totally clean out all its remnants. Why not try an easier and faster way to thoroughly remove it?

Lego Digital Designer For Mac

If you intend to save your time and energy in uninstalling Lego Digital Designer, or you encounter some specific problems in deleting it to the Trash, or even you are not sure which files or folders belong to Lego Digital Designer, you can turn to a professional third-party uninstaller to resolve troubles. Here MacRemover is recommended for you to accomplish Lego Digital Designer uninstall within three simple steps. MacRemover is a lite but powerful uninstaller utility that helps you thoroughly remove unwanted, corrupted or incompatible apps from your Mac. Now let’s see how it works to complete Lego Digital Designer removal task.

1. Download MacRemover and install it by dragging its icon to the application folder.
2. Launch MacRemover in the dock or Launchpad, select Lego Digital Designer appearing on the interface, and click Run Analysis button to proceed.
3. Review Lego Digital Designer files or folders, click Complete Uninstall button and then click Yes in the pup-up dialog box to confirm Lego Digital Designer removal.

The whole uninstall process may takes even less than one minute to finish, and then all items associated with Lego Digital Designer has been successfully removed from your Mac!

Lego Digital Designer Download

Benefits of using MacRemover:

MacRemover has a friendly and simply interface and even the first-time users can easily operate any unwanted program uninstallation. With its unique Smart Analytic System, MacRemover is capable of quickly locating every associated components of Lego Digital Designer and safely deleting them within a few clicks. Thoroughly uninstalling Lego Digital Designer from your mac with MacRemover becomes incredibly straightforward and speedy, right? You don’t need to check the Library or manually remove its additional files. Actually, all you need to do is a select-and-delete move. As MacRemover comes in handy to all those who want to get rid of any unwanted programs without any hassle, you’re welcome to download it and enjoy the excellent user experience right now!

This article provides you two methods (both manually and automatically) to properly and quickly uninstall Lego Digital Designer, and either of them works for most of the apps on your Mac. If you confront any difficulty in uninstalling any unwanted application/software, don’t hesitate to apply this automatic tool and resolve your troubles.

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First Steps
Creating Instructions
Getting Help
Video Guides
Useful Links
Tips & Tricks
Keyboard Shortcuts


What is LDD?

LEGO Digital Designer (LDD) is a freeware computer program produced by the Lego Group as a part of LEGO Design byME; it is available for macOS and Windows, and it allows users to build models and scenes using virtual Lego bricks, in a computer-aided design like manner.

What is an LXF file?

A three-dimensional model or scene created by LEGO Digital Designer (LDD); it is saved in a compressed .ZIP format and contains two files: IMAGE100.PNG (a .PNG design preview) and IMAGE100.LXFML (the .LXFML design specified in XML).

What is a scene?

One or more models can be put into a scene, with additional floor and background, one or more light sources and a camera that determines how is the scene is viewed. An .lxf file can contain a single model, but it can also contain many different models, for example a self-build LEGO city.

What is this Guide to LDD?

Rebrickable has about 8,500 MOCs (My Own Creation), new and unique LEGO models designed by fans, which you can build once you own one or more official LEGO sets. The building instructions for these MOCs can come in the form of an .lxf file, and if you have no idea what to do with such a file, this guide is your answer. It will show you how to download and install the LEGO Digital Designer program, how to load the .lxf file, and how view or generate the building guide.

This guide also contains links to useful video tutorials, a tips & tricks section and chapters on how to get help and how to connect LDD to other available programs. The guide is one of a three part series (Guide to LDD, Guide to and Guide to Rendering) with a seperate general introduction on Virtual Building.

The latest version of LEGO Digital Designer, 4.3.11, is available at The program comes in two versions, one for MAC OSx and one for Microsoft Windows. The Windows version will run flawlessly on Linux under Wine. Click on the Download Now button to download the desired version.

Please note the disclaiming below the download buttons: 'The LEGO Group of companies (LEGO) is providing LEGO® Digital Designer (the Software) at no charge. Any commercial use of the software is strictly prohibited.' This prohibition is repeated in the License Agreement included with the software.

For Windows: save and run the installation program setupldd-pc-4_3_11.exe (326.6 MB). The program will then unzip and start the installer. After selecting your language you want make sure that the licence agreement is ticked and then click next. If needed, add a shortcut to the desktop and then click next. You can then select weather you would like to install for the current user or all users. After clicking Install the software will be extracted. Then click Finish to end the installer. You should now have a LEGO Company menu group with LEGO Digital Designer, Safe Mode and two Help options.

For Linux: open the installation program setupldd-pc-4_3_11.exe with the Wine Windows Program Loader. Make sure Wine is fully initialized before starting the installation (run Configure Wine at least once). Then follow the procedure above.

For MAC: save and double-click the installation archive (323.8 MB). If you get an error message that says the program 'can't be opened because it wasn't downloaded from the Mac App Store,' right-click the downloaded file and select Open. The Mac installation file is named LDD.pkg. Once the installer starts, follow the procedure above.

First Steps

Each time the program is started, it connects to the Internet to download newly added bricks. The first time after installing the program, this download might take significantly more time. The Menu > Help > About box shows the version number of the latest brick download (Brick Version: 2670).

The opening dialog shows a selection panel on the right with recently used models, an 'Open another file' icon and a 'Free build' icon. LDD models have an .lxf extension. To load an existing model click Open existing file and select the model. The top of the opening dialog contains three tabs, named 'Digital Designer', 'Mindstorms' and 'Digital Designer Extended'. These are themes that determine the contents of the parts library. At any moment, the theme can be changed using Menu > View > New Themes. The default theme, Digital Designer, contains a part library with available colors for each part. More about themes in Tips & Tricks.

LDD follows the common 'left-click is select' convention, while right-click & drag is used to alter the angle of the 3D view. The mouse scroll-wheel is used to zoom in and out. The large arrows against the sides of the 3D view also change the view angle. Besides the bottom arrow there are three smaller icons:

  • to the left, curled arrow: show all with highest zoom
  • to the right, plus: zoom in (bricks get bigger)
  • to the right, minus: zoom out (bricks get smaller)

The left of the screen contains the parts library, consisting of 37 part categories. When clicked the category unfolds to show all its parts. Click again to collapse the category and hide its parts. Right-click to select and drag the part to its place. Parts will automatically snap to the grid and connect to other parts.

The menu bar contains common options such as File, Edit, View and Help, as well as a Toolbox menu to select a tools. The default toolset (also available as icons below the menu bar) consists of:

  • Single Selection tool (V) - to select single bricks in the scene
  • Clone tool (C) - to make duplicates of bricks in the scene
  • Hinge tool (H) - to rotate bricks that are connected with a hinge or a single-stud connection
  • Hinge Align tool (shift-H) - to automatically connect two separate connection points
  • Flex tool - to bend and twist flexible elements
  • Paint tool (B) - to change the color or material of bricks in the scene.
  • Hide tool (L) - to hide bricks or models
  • Delete tool (D) - to remove bricks from scene

For a more detailed description of camera control, the icon and menu bar, and building tools and palette, see Getting Help.

If you have downloaded an LDD .lxf file for a Rebrickable MOC, and you wish to generate instructions, follow this procedure:

  • Start LEGO Digital Designer
  • Select Open another file
  • Locate the model and select Open
  • Press Building guide mode icon (top/right) or press F7
  • Use the Next brick (right arrow) to browse the pages
  • Press Create HTML building guide (top/left) or ctrl-H
  • Select the folder where you want to save your building guide and press OK

In LDD you can browse through the building proces and actually see where each individual part is placed, as the proces is animated and the parts literally fall down into the model. When generated as a HTML building guide the build is divided into pages, which each page containing upto four parts, which are placed simultaniously. Usually the proces is much easier to follow in LDD itself. If you have a choice, use the model in LDD instead of a generated HTML building guide.

There is also an Android App for viewing .lxf files: BricksViewer, a .lxf scene viewer (free).

Getting Help

The LEGO Digital Designer 4.3 User Manual is included with the software and stored in Program Files (x86)/LEGO Company/LEGO Digital Designer/Help/en-manual/en-manual.html. The Readme file contains system requirements and the latest information about the software release. It is stored in Program Files (x86)/LEGO Company/LEGO Digital Designer/Help/en-manual/engReadMe.html. Both files are available in German and English, can be displayed by any browser, and can be accessed externally (main menu) and internally (program help menu)

The User Manual is also available as a PDF at

If you encounter any problems, refer to the Readme first. If needed, check the Eurobricks Forum in the Useful Links below. If the problem remains, post a question in our Help Forum.

The Import function in LDD has two different form of usage: adding and converting. If you want to add two or more models into a scene, you can't use Open, for that will clear the 3D work area before adding the new model. So after opening the first model, the only way to add a second model is to import it using Menu > File > Import > LXF-Files. The scene, now containing two models, can be saved as usual as a single .lxf file.

If you try to open an .lxf file created by an earlier version of LDD, you might get an error beep and some parts might not be displayed. In that case, try importing the model, which will perform the necessary changes.

The available export formats in Menu > File > Export are:

  • LXF-Files
  • LXFML-Files
  • LDraw-Files
  • LXFML4-Files .lxfml


An .lxf file is a compressed .zip file that contains two other files: a .png image (the design preview, used to display the model in LDD's opening dialog) and a .lxfml text file, which describes the models or scene. LXFML stands for LEGO eXchange Format Markup Language, and it was developed in 2005 by LEGO System A/S. The latest version, 5.0 is used when exporting LXFML files, while LXFML4 uses the previous version 4.0. The LXFML files contain a textual description of a model or a scene in a highly structured and hierarchical format, known as XML. As these files can be opened by any text editor, they can be used to change, for example, the brick colors or camera position.


LDraw is not a single program, but a parts library based upon the LDraw file-format, and a collection of programs that can use that part-library in some way (see Virtual Building). By using a list that maps LEGO element ids (or LEGO part numbers) to LDraw part numbers, LDD can create an LDraw file that can be read by other programs. The translation table for this mapping is a file called ldraw.xml, in the LEGO Digital Designer folder (see Tips & Tricks).

Export Part List (BOM - Bill of Materials)

A final export is available under Menu > File > Export BOM, which allows exporting a list of used parts in either an Office Open XML Workbook (.xls) or a ZIP-File. A similar list of parts (though much better looking) is added to the generated building guide (see Creating Instructions).


LDD can not generate photo-realistic images of models or scenes, but there are several programs available that can render (create a photo-realistic image) a .lxf file. More about these programs in our Guide to Rendering.

However, LDD can generate images similar to what is shown on the screen while building. There are two ways to create such images:

  • In Build mode, you can take a Screenshot by using Menu > Tool Box > Take a screenshot or pressing ctrl-K. In the Save screenshot dialog you can enter a name for your image, which is saved as a .png file with a transparent background. Using a graphics editor you can add any background to that image.
  • In View mode (Menu > View > View Mode or F6) the model is displayed against a default desert/dunes background. You can chnage the background using Menu > Edit > Change background or ctrl-F. Besides the desert/dunes background LDD contains a jungle/mountains, clouds/ocean and stars/space background. Using Menu > Tool Box > Take a screenshot or ctrl-K you can create an image of your model with that particular background.

I have not been able to find any good general text tutorials on LEGO Digital Designer, because nowadays, tutorials are mostly done in video. Below you will find some links to video tutorials that provide a decent amount of good information. When it comes to specific problems with LDD, such as creating custom decorations, a little searching on the internet usually gets you an answer. Here are some of the special tutorials I found most interesting.

  • Adding Custom Decals into LEGO Digital Designer - This tutorial will show you how to mod in custom textures to LDD so that you can use them in your models, and includes a little section at the end on setting these models up for rendering in POV-Ray.

More will follow later...

Video Guides

  • Lego Digital Designer - Basic Tutorial, published on Mar 13, 2014, by Joseph Depalma. A beginners tutorial that looks to help users figure out some of the more basic functions of LDD.
  • LEGO Digital Designer Tools Explained, published on Jul 24, 2015, by Virtual Robotics. A look at the tools that make up LEGO Digital Designer and a demo of their use.
  • How to Get Building Instructions and BOM from an LDD Model, published on Jan 19, 2017, by Builderdude35. How to create printable building instructions and a parts list/bill of materials for a model that you have created in Lego Digital Designer.
  • Lego Digital Designer Tips and Tricks - 1/2, published on Oct 19, 2014, by Isaac Lloyd.
  • Lego Digital Designer Tips and Tricks - 2/2, published on Oct 19, 2014, by Isaac Lloyd.

Lego Digital Designer Alternative Mac

LEGO Digital Designer is a wonderful program. It looks great, it is easy to understand, intuitive to control, it has a massive amount of modern LEGO parts, lots of great features, and it fun to work with. It definately lives up to Ole Kirk Kristiansen's motto for the LEGO company, 'Det bedste er ikke for godt' (Only the best is good enough). The only problem is that LEGO has stopped developing it; they might be adding new bricks, but no more new features. I truly hope that LEGO will remember the Mindstorms introduction, and apply the lesson learned to the LDD software. LDD ought to be released as open-souce, and the fan community should be allowed to fork it and add new features, and add more parts to the LDD parts database.

Useful Links

  • Secrets of LDD - 10 useful tips for LEGO Digital Designer
  • Eurobricks - LEGO Digital Designer and other digital tools (Forum Index)

More will follow later...


LEGO Digital Designer has three themes, that influence the building palette (parts library) and the available tools.

  • Digital Designer (Default) - 37 part categories, all colors.
  • Mindstorms - 26 part categories, only available colors.
  • Digital Designer Extended - 37 part categories, all colors.

In the Default theme, the building palette contains each available for each part. For some parts this means 50 of 60 different colors. In the Extended theme, the building palette is simplified , as each type of brick appears only once, in red. After adding the parts to the 2D work area, you can change the color to any color using the Paint tool, and you can use colors that are not available for the real part. There are also more parts available in Extended mode.

Lego Digital Designer Free Download


The version of ldraw.xml that is installed by default is LDD 4.3.6 Brick ver 1033. The latest version, LDD 4.3.11 Brick ver 2670, is available here.

Keyboard Shortcuts

Viewpoint controller:PCMAC
Rotate view left4 Key (NumLock: ON)4 Key (NumLock: ON)
Rotate view right6 Key (NumLock: ON)6 Key (NumLock: ON)
Rotate view up8 Key (NumLock: ON)8 Key (NumLock: ON)
Rotate view down2 Key (NumLock: ON)2 Key (NumLock: ON)
Reset view5 Key (NumLock: ON)5 Key (NumLock: ON)
Zoom in+ Key (NumLock: ON)+ Key (NumLock: ON)
Zoom out- Key(NumLock: ON)- Key (NumLock: ON)

Building tools:
Select toolV-KeyV-Key
Toggle Select toolsShft+VShft+V
Hinge toolH-KeyH-Key
Hinge Align toolShft+HShft+H
Clone toolC-KeyC-Key
Paint toolB-KeyB-Key
Hide toolL-KeyL-Key
Delete toolD-KeyD-Key

Grouping tool:
Create groupsCtrl+GCmd+G

Create a templateCtrl+Alt+GCmd+Alt+G

Icon bar:
Upload to GalleryShft+Ctrl+BShft+Cmd+B

Building Guide controller:
Next brickRight arrowRight arrow
Previous brickLeft arrowLeft arrow
Repeat Last StepSpaceSpace
Next stepPageDnPageDn
Previous stepPageUpPageUp
Output as HTMLCtrl+HCmd+T

Menu items:
Import modelCtrl+ICmd+I
Export modelCtrl+ECmd+E
Save asShft+Ctrl+SShft+Cmd+S
ExitCtrl+Q or Alt+F4Cmd+Q
DeleteDelete KeyDelete Key
Select AllCtrl+ACmd+A
HelpF1 KeyF1 Key
What is this?F2 KeyF2 Key
AboutF3 KeyF3 Key
Show/Hide Brick PaletteCtrl+1Cmd+1
Show/Hide Tool PaletteCtrl+2Cmd+2
Show/Hide Web BrowserCtrl+3Cmd+3

Note: Mac shortcuts can vary depending on your country.