LEGO Digital Designer

Build unlimited virtual LEGO models with LEGO Digital Designer, the free software that lets creative builders design anything from simple structures to complex creations using thousands of authentic LEGO bricks and pieces.

While LEGO announced that development has ended, LEGO Digital Designer remains fully functional and free to download and use. The software gives you access to an extensive library of LEGO components in various sizes and colors, letting your imagination run wild as you construct models piece by piece. Whether you're a casual builder or aspiring designer, you'll find everything needed to bring your brick-building ideas to life in a intuitive 3D workspace.

The software operates in multiple modes tailored to different building interests. The classic Build mode provides a carefully curated selection of bricks organized by category and size, accessible through a convenient floating menu. If you need unlimited creative freedom, LDD Extended unlocks the complete brick library with every color variation imaginable. For those interested in robotics and mechanical design, the LEGO MindStorms mode offers hundreds of virtual programmable robot elements and Technic pieces to engineer your own automated creations.

Once you've finished designing, LEGO Digital Designer makes it easy to document your work. The Building Guide mode automatically generates step-by-step construction instructions saved as HTML files—perfect for building your design in real life using actual LEGO bricks. The View mode lets you capture screenshots and explode your model to see how each component fits together. The 3D working area supports full panning, zooming, and rotation, giving you complete control to inspect your creation from every angle.

The interface resembles professional computer-aided design software, making it accessible to experienced designers while remaining straightforward for beginners. Mouse controls are optimized with helpful hotkeys for quick access to tools. The Brick palette filters pieces by LEGO sets or color, while the Group palette lets you save collections of frequently used components for faster workflows. Templates streamline projects by storing pre-built foundations you can reuse across multiple designs.

LEGO Digital Designer has been trusted by professional LEGO builders and was used to develop models for major motion pictures and LEGO installations worldwide. Download LEGO Digital Designer today and start creating the models you've always imagined—completely free, no limitations on your creativity.