About Brick Bag Inventory

I wanted to disassemble my LEGO sets and sort the parts back into their original numbered bags — so the next time I'd build a set, I could just grab bag 1 and start building instead of digging through a mountain of loose bricks.

The problem? That information doesn't exist anywhere. The instructions show you what to build in each step, but they never list which parts come in which bag. So I started doing it myself, one set at a time.

It worked great. And then I realized I wasn't the only one who could use this. Turns out there are plenty of reasons people need bag-level inventories:

• Sorting sets for storage — disassemble a set and re-bag the parts so it's ready to build again anytime.
• Rebuilding from bulk lots — bought a bin of loose LEGO? Knowing which parts go in each bag makes it way easier to piece a set back together.
• Identifying a loose bag — found an unopened numbered bag but no idea which set it belongs to? Look it up.
• Parting out sets — if you sell parts on BrickLink, bag inventories help you sort and list parts more efficiently.

That's how Brick Bag Inventory was born: a free tool built for the LEGO community, by someone who needed it first.

How it works

1. Search for a LEGO set by name or number.
2. View the bag-by-bag breakdown of every part.
3. Don't see your set? Request a bag inventory and we'll add it.

Every inventory is reviewed before it goes live, so you can trust the data you're building with.

Built by Lumo Brick

Brick Bag Inventory is a project by Lumo Brick. If you have questions, ideas, or just want to say hi — get in touch.