Save money on buying LEGO by mixing up your current sets to build others. Rebrickable uses powerful algorithms to calculate what other sets/MOCs you can build from your existing sets and loose parts. If you don't have exactly the right ones, it will show close matches and can perform some fuzzy color matching logic.
Did your favourite designer just publish a 1000-part masterpiece but you can't afford to buy all those parts? Use Rebrickable to show you which parts you already have and help you to order the rest.
Every MOC on Rebrickable has a list of parts and building instructions, so you can be sure that anything you find here is buildable! You may not have every part required, but the beauty of LEGO is that you are encouraged to improvise!
Import your LEGO 3d CAD files and Rebrickable will generate a parts list for them. Using the Private MOCs page you can then export the list into a number of alternate formats. You can also find out how much the parts cost and who has them in stock through our integrated parts stores. Or maybe you just want to see if you already have the parts to build it!