LEGO® Builder: 3D Instructions

4.7
261K reviews
Content rating
Rated for 3+
10M+
Downloads
Teacher Approved
Content rating
Rated for 3+
Learn more
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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.
Updated on
Jul 7, 2026

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

4.8
210K reviews
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!
946 people found this review helpful
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Joni Scally
February 4, 2025
The app seems to be getting worse. Struggle to register sets as it keeps taking you around in circles, jumping from the app to the web, constant maths questions, then when you think it's worked, you go on the app and the set isn't there. Very slow to work. Just becoming very frustrating to use.
104 people found this review helpful
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LEGO System A/S
December 29, 2024
That's definitely not the experience we want you to have, and we really appreciate you leaving this feedback that will be passed on straight to our developer team. - Sarah, LEGO® Customer Service
Marisa Assink
July 1, 2026
This almost ended my 6 year relationship. I build Legos with my partner every year for our anniversary. We did just fine without the app up till now. We tried the team building feature together for our last set and got so annoyed with having to pass things back and forth and leaving things unfinished. At one point we had 5 different Lego bags open, just waiting to be returned to! The order of instructions makes no sense. The team function is the only reason we got the app, and it was horrible.
1 person found this review helpful
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LEGO System A/S
July 1, 2026
Oh dear! That's certainly not what we want! Our experts at LEGO.build/Service would be more than happy to go through this function together, so you can explore all features. Please give us another chance and we'll make it right! 🙂

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!