21 bag inventories added in the last 24 hours thanks to 13 contributors. Learn more

How contributions work

Every bag inventory on Brick Bag Inventory is built by following the official LEGO instructions step by step. Our system tracks which parts appear at each step and assigns them to the correct numbered bag.

While much of the heavy lifting is automated, every inventory is verified by real contributors before it goes live. This human review ensures accuracy and catches edge cases that automation might miss.

Brick Bag Inventory is free and ad-free, but the site still costs money to run, and putting together each bag inventory takes a lot of time and care. That's why we rely on the community. If our tool helped you, spending a few minutes a day on these tasks lets us keep publishing new sets.

Everyone can contribute

You don't need to be a LEGO expert or commit hours of your time. Contributing is as simple as looking at a photo and identifying a part.

It only takes a few seconds

When you identify a part, you're helping us assign it to the right bag. Even identifying a single part is already helpful. Every contribution adds up and helps someone rebuild their set faster.

Ways to contribute

There are a few different tasks you can pick up. Each one is quick, and they all help get new inventories published.

  • Identify parts

    Look at a photo of a part and pick the matching LEGO element. No expertise needed.

  • Verify parts

    Double-check an identification made by someone else or our automated detection so we know it's right.

  • Check quantities

    Confirm how many of a part a building step uses.

  • Select parts

    Trusted contributors

    Within a marked panel, tap the individual parts so we can start the identification process.

The community in numbers

Activity over the last 30 days.

Contributions
70,358
Contributors
44
Bags published
412

Contributions per day

Tasks completed each day, with the number of unique contributors.

Contributions Contributors
Jul 7 4372 contributions 9 contributors
Jul 8 1137 contributions 9 contributors
Jul 9 3248 contributions 9 contributors
Jul 10 3153 contributions 11 contributors
Jul 11 3589 contributions 7 contributors
Jul 12 2639 contributions 10 contributors
Jul 13 4614 contributions 10 contributors
Jul 14 8812 contributions 11 contributors
Jul 15 2782 contributions 8 contributors
Jul 16 4220 contributions 10 contributors
Jul 17 4618 contributions 12 contributors
Jul 18 1625 contributions 8 contributors
Jul 19 392 contributions 8 contributors
Jul 20 2104 contributions 10 contributors
Jul 21 1613 contributions 5 contributors
Jul 22 753 contributions 6 contributors
Jul 23 650 contributions 6 contributors
Jul 24 349 contributions 6 contributors
Jul 25 402 contributions 10 contributors
Jul 26 1204 contributions 10 contributors
Jul 27 213 contributions 4 contributors
Jul 28 2022 contributions 11 contributors
Jul 29 655 contributions 7 contributors
Jul 30 273 contributions 6 contributors
Jul 31 59 contributions 5 contributors
Aug 1 622 contributions 8 contributors
Aug 2 4143 contributions 8 contributors
Aug 3 4316 contributions 14 contributors
Aug 4 3156 contributions 10 contributors
Aug 5 2623 contributions 11 contributors
Jul 7
Jul 12
Jul 17
Jul 22
Jul 27
Aug 1
Aug 5

Bags published per day

Bag inventories approved and made available each day.

Jul 7 40 bags
Jul 8 39 bags
Jul 9 0 bags
Jul 10 18 bags
Jul 11 18 bags
Jul 12 13 bags
Jul 13 20 bags
Jul 14 18 bags
Jul 15 19 bags
Jul 16 16 bags
Jul 17 20 bags
Jul 18 24 bags
Jul 19 20 bags
Jul 20 19 bags
Jul 21 23 bags
Jul 22 24 bags
Jul 23 0 bags
Jul 24 0 bags
Jul 25 0 bags
Jul 26 0 bags
Jul 27 0 bags
Jul 28 0 bags
Jul 29 0 bags
Jul 30 0 bags
Jul 31 0 bags
Aug 1 0 bags
Aug 2 20 bags
Aug 3 20 bags
Aug 4 20 bags
Aug 5 21 bags
Jul 7
Jul 12
Jul 17
Jul 22
Jul 27
Aug 1
Aug 5