The official digital building software powered by the LEGO Group, available for free download at this link. It allows FLL teams to prototype robot designs in 3D, create professional building instructions, and generate high-quality renders for their Robot Design notebooks. Please note that all 3D models and mechanisms available for download on gearsandmodels.org are provided in the BrickLink Studio (.io) format, allowing you to easily open, modify, and integrate them into your own team's designs.

FLL Tutorials A comprehensive, community-driven "encyclopedia" for all things FIRST LEGO League. This site offers high-quality lessons and worksheets on robot design, mission strategy, and core values—perfect for teams looking to refine their competitive edge. The materials are available in 8 different languages, making it an invaluable resource for international teams and diverse classrooms.

A deep dive into the world of LEGO architecture and advanced building techniques. Beyond its incredible storage solutions, the site offers long-form articles on part geometry, color analysis, and architectural styles—perfect for teams looking to refine the aesthetic and structural design of their robots.

The most trusted technical database for LEGO motors. This site provides detailed comparative charts on stall torque, free speed, and power curves across all LEGO robotics generations—from EV3 to SPIKE Prime. It is an essential resource for teams needing precise data to optimize their robot's mechanical performance.

A global hub for educators and coaches to share "best practices," creative lesson plans, and innovative building ideas. It’s the perfect place to connect with other FLL mentors and discover how to use the LEGO Learning System to its full potential in both the classroom and the competition field.

The official global education hub for WRO. It features structured courses for the RoboMission category, providing step-by-step LEGO building instructions, coding guidance for SPIKE Prime, and specialized tutorials on mechanics like line-following and precise turns.

The global headquarters for the competition. Visit this site to access the official Challenge documents, Robot Game rules, scoring rubrics, and the latest season updates essential for every team.

An essential web-based tool for calculating the mechanical advantage of your designs. It allows you to input various LEGO gear combinations to determine exact ratios, output speed, and torque. Perfect for ensuring your FLL attachments have the right balance of power and speed for every mission.

The ultimate LEGO set and part database. It is incredibly useful for identifying specific gear elements by their part numbers and tracking your team’s inventory.

A massive digital library of building instructions and video tutorials for LEGO robotics. While it offers extensive resources for competitions, it is also a premier destination for anyone looking to master complex Technic mechanisms, sensor integration, and advanced programming for SPIKE Prime and MINDSTORMS platforms.

The official hub for WRO's sports-themed challenges. This page provides the technical rules and field setups for robots designed to interact with moving objects and opponents. It is an excellent place to learn about sophisticated drivetrain control, vision-based tracking, and robust attachment design built for speed and durability.