LEGO® Builder

4.7
186K reviews
10M+
Downloads
Content rating
PEGI 3
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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.
Updated on
Jul 23, 2025
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and App activity
Data is encrypted in transit
You can request that data be deleted
Committed to follow the Play Families Policy

Ratings and reviews

4.7
150K reviews
Matt G Baish
July 3, 2025
Good alternative to manual, especially when device is linked up to an external monitor or used on a tablet, although with Bricklink sets it seems I have no choice. Brown colours are difficult to distinguish (which can be tedious with "Wild West" sets where a lot of brown seems to be used). Also the prize draw rating does not work with Bricklink sets it seems, which is a shame.
28 people found this review helpful
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Joshua Fasola
June 14, 2025
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!
181 people found this review helpful
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Joni K
March 18, 2025
Great app! very helpful and when available I prefer the 3D instructions over the paper ones. As a suggestion I wish I could mark missing pieces and have ordering and more filter options. Currently the "scroll right to find set" filter is a bit tedious + sets are shown in registering order when one might want to look at them in number or release order. also, please add an option to manually add more than 1 copy of a set. Scanning allowed you to do that.
538 people found this review helpful
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LEGO System A/S
February 25, 2025
We thank you for hanging in there with us and we're happy to let you know a new update just released! The update will take care of the issues with math check that you mentioned! ✨ - Jane, LEGO® Customer Service

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!