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

loved the app. have been using it since I got my first set a couple years ago. I haven't opened the app recently. I opened it and saw my completed sets floating on the homepage. I liked the old version where you had different categories and the sets were on the your profile page. now I have to add it. the only way I can see the old version is if I log out of my account. please fix it please

Love the app! It's a great way to keep track of most lego sets and the 3d view makes it easier for the kid to build. However I do believe it could be better. It's frustrating when a set retires instead of showing the picture its a blank box and you have to figure out which set it is. Almost none of the small bag sets (polybags) are not on here which we wish they were so we didnt have to keep up with the small papers in the bag to rebuild it later or atleast to keep track of sets and pieces.

new update with zero way to filter or search your list and the "list" now (if you can even call it that now) has no rhyme or reason when you have lots of sets a bunch of tiles in all directions does not make easy finding be. Especially when you can't remember the name or number of the set. Not a good way to organize (not organize) user sets.

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!