AI Lego Piece Identifier

The essential tool for Lego builders, collectors, and resellers. Upload any Lego piece photo to instantly find the official part number, element ID, BrickLink catalog number, which sets included it, current market prices, and where to buy replacements. Works with bricks, plates, Technic, minifigures, and vintage pieces.

Describe Piece or Upload Photo

Upload Lego Photo

How to Use This AI Lego Identifier

Upload a clear photo of your Lego piece showing all sides if possible. For printed pieces, ensure the design is visible. The AI identifies the part and provides all catalog numbers you need to find or order it.

Tips for Better Lego Photos

Multiple Angles

Show top (studs), bottom (tubes), and sides for complex pieces.

Count Studs

Stud pattern (2x4, 1x6, etc.) is the primary identifier for bricks.

True Color

Natural lighting shows accurate Lego color—important since colors have specific names.

Show Prints

Printed designs, stickers, or minifigure torso patterns help identify specific elements.

What the AI Identifies

Part Name: Official Lego element name and category
Design ID: The mold number that identifies the shape (same across colors)
Element ID: Unique number for specific color + shape combination
BrickLink Number: Catalog number for buying/selling on BrickLink
Original Sets: Which Lego sets included this exact piece
Replacement Sources: Where to buy: Lego Pick a Brick, BrickLink, BrickOwl prices

Lego Elements We Identify

Our AI identifies standard bricks, plates, tiles, slopes, curved pieces, Technic beams and pins, minifigures and accessories, wheels and tires, windows and doors, printed elements, rare/retired pieces, and vintage pre-1980 Lego.

What Our AI Lego Piece Identifies

Official Lego element name and category Our advanced AI analyzes visual and contextual elements to provide accurate identification with detailed supporting information. Results include confidence levels and alternative possibilities when applicable.

The mold number that identifies the shape (same across colors) Our advanced AI analyzes visual and contextual elements to provide accurate identification with detailed supporting information. Results include confidence levels and alternative possibilities when applicable.

Unique number for specific color + shape combination Our advanced AI analyzes visual and contextual elements to provide accurate identification with detailed supporting information. Results include confidence levels and alternative possibilities when applicable.

Catalog number for buying/selling on BrickLink Our advanced AI analyzes visual and contextual elements to provide accurate identification with detailed supporting information. Results include confidence levels and alternative possibilities when applicable.

Lego Piece Categories We Recognize

The most frequently encountered lego piece items are identified with high confidence and comprehensive detail. These include mainstream products, popular varieties, and widely distributed examples.

Our AI recognizes rare, limited edition, and vintage lego piece items that often have significant value or historical importance. Identification includes rarity assessment and collectibility notes.

Many lego piece items have multiple versions, color variations, or special editions. Our system distinguishes between these variants and identifies specific release information when available.

Tips for Accurate Lego Piece Identification

Show top (studs), bottom (tubes), and sides for complex pieces. Following this guidance significantly improves identification accuracy and the detail level of results returned.

Stud pattern (2x4, 1x6, etc.) is the primary identifier for bricks. Following this guidance significantly improves identification accuracy and the detail level of results returned.

Natural lighting shows accurate Lego color—important since colors have specific names. Following this guidance significantly improves identification accuracy and the detail level of results returned.

Why Identify Lego Piece Items

Building a quality collection requires accurate identification. Our tool helps verify items before purchase, identify pieces in existing collections, and discover rare finds at estate sales, thrift stores, or garage sales.

Accurate identification is essential for pricing items correctly and writing searchable listings. Misidentified items either undersell valuable pieces or frustrate buyers expecting something different.

Knowledge enhances appreciation. Understanding what you're looking at—its history, rarity, and distinguishing features—transforms casual interest into informed enthusiasm.

Understanding Lego Piece Identification Results

Frequently Asked Questions

What is the difference between Design ID and Element ID?

Design ID identifies the mold shape regardless of color. Element ID is unique to each color+shape combination. Both are useful for ordering parts.

Can it identify vintage Lego?

Yes, the AI recognizes classic Lego pieces from the 1960s-1980s including hollow studs, old logo patterns, and discontinued colors.

Does it identify knockoff brands?

The AI is optimized for genuine Lego but will note if a piece appears to be from a compatible brand like Mega Bloks.

Is it free to use?

Yes, 100% free with no registration required. Unlimited identifications.