LEGO® Builder: 3D Instructions

LEGO System A/S

About this app

LEGO® Builder is the official building instructions app for LEGO® sets that guides you on an easy, fun, and collaborative digital building adventure.

Build your set like never before:

- Step into a new way of building with an intuitive 3D building experience that lets you zoom, rotate, and view LEGO® sets from every angle.

- Use step-by-step digital building instructions to see each brick clearly and bring your set to life with confidence.

Build Together with friends and family!

- Build Together is a fun, social building experience designed for multiple builders to work together.

- You can team up and divide tasks to complete your LEGO® set as a group - perfect for fun social family nights, birthdays, or holidays like Valentine’s Day, Easter, Mother’s Day, Father’s Day or Christmas.

- Share a PIN code to join as a host or builder, take turns completing building steps, and collaborate to finish the model together.

- Check in the app to see if your LEGO® set can be built using the Build Together feature.

Discover thousands of LEGO® instructions

- Explore a digital library of LEGO® building instructions from 2000 to today.

- Search by set name or number, or scan the QR code on your instruction manual to open it instantly in the app.

Follow a story as you build

- Unlock enriched content and guided building experiences for select LEGO® themes, bringing extra fun and imagination to your 3D building journey.

Unlock more with a LEGO® Account

- Save your progress, build a digital collection of your LEGO® sets, and track your total number of bricks.

- Pick up right where you left off - anytime, anywhere.

Track your building journey

- Now you can keep a record of your completed sets, see your total bricks built, and celebrate your progress as a LEGO® Builder.

Things to keep in mind

- You’ll need a stable internet connection to use this app. We’re always adding new digital building instructions so you can expand your collection, explore new sets, and find even more ways to build together.

- Want to know if your set includes digital instructions or Build Together mode? Check in the app and start your collaborative adventure today!

We're eager to hear how we can make the LEGO® Builder app even better for you! Please leave us your thoughts and recommendations in the reviews to help us make the LEGO® Builder app even better.

LEGO, the LEGO logo, the Brick and Knob configurations, and the Minifigure are trademarks of the LEGO Group. © 2025 The LEGO Group.

Ratings and reviews

I didn't know you could be this bad at coding an application. The add button doesn't work. I've uninstalled and reinstalled. Can't find the set using the number on the box. What a waste of time. Edit: Rebooted my phone, and it's better. The set I wanted to add did show up in the search this time. I was also apparently trying to add to my "collection" by tapping on a non-clickable UI element that looks like it should be a button. So, not broken anymore, but also not intuitive UI design.

It's been a while, but I think the app has improved immensely. I used to have issues loading my sets, plus to build, & there were some bugs. We moved, and I just so happened to get a notice that since I wasn't active in my account that it would not me out.I thought it was this 1,& I turned it on. I unloaded 1 of my old sets to put back together, and here I am... enjoying an improved app. So again, thanks for cleaning it up!

This is a five star app for the latest sets, hands down. But I had to dock two stars because the presentation of older sets is very poor. I decided to build set 21024 (The Louvre from the Architecture Series), but instead of the 3D presentation, you get a low resolution scan of the instructions. Architecture series instructions have a lot of notes in a small font, and they are often unreadable in the app. Zoom in and the words are a pixelated mess.

What’s new

We've made the LEGO Building Instructions experience even more awesome. How? Well, we fixed some pesky bugs and improved performance in the app. Now you can build even bigger, better than before!