Brick builder
Put brick on brick like the real thing: parts snap onto the studs and never go through each other. At the end you get a parts list and instructions.
How the brick builder works
Pick a part and a colour on the left and point at a stud. A green preview shows where the part will go; a click places it – with a “click”. If the preview is red, the part would go through another one or would not hold anywhere, so it cannot go there.
You build like the real thing: parts only sit on studs or hang from studs underneath, and nothing goes through anything else. The result is a model you can also build with real bricks.
Which parts are there?
More than 400 parts in twelve groups: bricks, plates, tiles, slopes, curved and round parts, special parts, wedges, windows and doors, Technic bricks, walls and fences, and plants. The 3D models come from the free LDraw library. For every part you see the colours it has appeared in.
Controls
R rotates the part, the right mouse button turns the view, the wheel zooms. With “Select” you move, rotate, duplicate, repaint or delete parts; the picker takes part and colour from the model. Undo with Ctrl+Z. On a phone, turn the view with one finger and tap to place.
Parts list, BrickLink and instructions
The parts list counts along while you build. Download it as a BrickLink wanted list (XML) or CSV, or save it as your own list in My lists. The builder creates the instructions automatically from the bottom up – to click through or as a PDF with the parts list on the cover.
As an LDraw file (.ldr) your model also opens in other programs such as Stud.io or LDCad, and you can import .ldr files, too.
Frequently asked questions
Do I need an account?
No. Without an account your browser keeps your models. With an account they are stored in your account and available on all devices.
Does the brick builder cost anything?
No, it is free – with all parts, the parts list, BrickLink export and PDF instructions.
Why can’t I place a part?
Either it would go through another part, or it would have no connection: every part has to sit on studs or hang from studs underneath – just like real bricks.
Can I open my model in Stud.io or LDCad?
Yes. Export it as an LDraw file (.ldr). You can also import .ldr files; parts that are tilted or turned at an angle are left out.
Prefer building from a set? What can I build? finds sets you can build from your bricks, and the mosaic generator turns a photo into a brick picture.