FREE TOOL
Check your LEGO set completeness
Choose a set, mark the parts you own and instantly see what is missing. You can complete one check without an account.
No sign-in required
Your selections stay in this browser.
STEP 1
Try a ready-made example
Find your set
Enter the number from the box or the set name.
HOW IT WORKS
A completeness check in three steps
- 1Choose a setUse the number on the box or search by name.
- 2Count partsEnter how many you own for each item.
- 3See what is missingFilter and download a ready-made missing-parts list.
FAQ
LEGO set completeness FAQ
The checklist is based on the catalogue inventory. Selections are made in your browser, so you can check a set before creating an account.
Can I check a LEGO set without an account?
Yes. Select a set and mark the parts you own without signing in. An account is only needed to save progress or compare it with a warehouse.
Are spare parts shown separately?
Yes. Spare parts have their own label and filter, so they do not obscure the main set inventory.
Can I download the missing parts list?
Yes. You can generate a PDF with part images or download the missing items as a CSV file.