LEGO® Builder

LEGO System A/S

About this app

LEGO® Builder is the official LEGO® building instructions app that will guide you on an easy and collaborative building adventure.

Step into a new building experience
- LEGO Builder allows you to build with a fun, 3D modeling experience where you can zoom and rotate LEGO construction sets.
- Rotate individual bricks to find the color and shape you need, for each step of the LEGO building experience.

Build Together!
- Build Together is a fun and collaborative building experience that lets you tackle your LEGO instructions as a team, by delegating each builder their own creative tasks to complete!
- Share your PIN code and join as a host or builder. Take your turn, complete a building step with 3D modeling, then pass to the next person for collaborative building!
- Check if your set is supported in the app.

1000s of LEGO instructions supported
- Search and explore the full library of LEGO instructions for construction sets from 2000 to today. Start your digital collection today!
- You can also scan the QR code on the front cover of your paper LEGO instructions manual to open it directly in the app.

Follow a story as you build
- Discover enriched content for some of your favorite LEGO themes for an even better building experience.

Unlock the full experience with a LEGO account
- Build a digital collection of your LEGO construction sets and track how many bricks you’ve got in your collection!
- Save your building progress and pick up your LEGO instructions where you left off!

Things to keep in mind:
You will need a stable internet connection to use this app.
We’re always adding new LEGO building instructions to the experience, so you can grow and customize your digital collection and discover even more fun LEGO instructions!
Want to know if your set has 3D LEGO building instructions with the Build Together mode? Check in the app and enjoy collaborative building.

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.
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

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.

My son got the Z-Blob's Robot and Vehicle Adventures set and the 2nd half of the directions are only available on the app. But the app keeps crashing every time we try to open the 2nd set of directions. The first set (which came printed) opens fine, but the 2nd set won't open. I tried uninstalling and reinstalling and on multiple devices. It crashes every time we try to open the 2nd set of directions. My daughter got a similar set and hers opens with no problem.

Love the 3D instructions. Great way to get my daughter involved in complicated sets, she can move it around to see where pieces go (I can too!). Also love the cataloging of which sets we own, and we were able to find an old advent calendar and the instructions to reassemble the miniature sets! LEGO is fun for EVERYONE!

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!