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Open-source robots with their licenses, parts and source files. Every page is pinned to a commit on GitHub.

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Ready to build: a score of 80 or more, a license and a finished design.

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Where the project was published, known for 29 of 270 robots. Never guessed.

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Guides machine-translated into English by Robotheca, with a link to the original on each robot page.

37 of 270 robots state a cost. Costs in other currencies are compared using the ECB reference rate of 15 Oct 2026. Robots without a known cost are hidden unless you include them.

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270 robots

Page 7 of 12 · Ready to build first, then by buildability

  • STM32 Balance Car

    A self-balancing robot using STM32F103C8T6 with Mahony algorithm for attitude estimation.

    WheeledIntermediateBuildability 40/100 · Incomplete documentation
    • Work in progress
    • No license
    Cost not stated

  • Tdrone

    An open-source coaxial twin-rotor drone (helicopter-style swashplate control) that can be 3D printed and rebuilt by hobbyists.

    OtherAdvancedBuildability 40/100 · Incomplete documentation
    • No license
    Cost not stated

  • TipTap

    A 3D-printed bipedal robot built as a low-cost desktop platform for semi-direct drive walking research.

    OtherAdvancedBuildability 40/100 · Incomplete documentation
    Cost not stated

  • Underwater Vehicle

    An ROV/AUV underwater robot controlled by STM32 and Raspberry Pi for navigation and sensor data processing.

    DroneAdvancedBuildability 40/100 · Incomplete documentation
    • No license
    Cost not stated

  • Upkie

    Open-source wheeled biped robot with wheels for balance and legs for uneven terrain, controllable in simulation and on hardware.

    OtherAdvancedBuildability 40/100 · Incomplete documentation
    Cost not stated

  • Woodpecker Writing Machine

    A low-cost DIY writing machine that draws on a vertical surface using two stepper motors and a servo-controlled pen.

    OtherIntermediateBuildability 40/100 · Incomplete documentation
    • Work in progress
    • No license
    ¥25.80≈ €3 (ECB rate, 15 Oct 2026)

  • X-Bot

    A tiny open-source writing robot arm designed for AI drawing applications.

    Robot armIntermediateBuildability 40/100 · Incomplete documentation
    • No license
    Cost not stated

  • ziFly Quadcopter Flight Controller

    A quadcopter flight controller based on STM32F103 with remote control, PCB, 3D models, and ROS 2/PX4 simulation support.

    DroneIntermediateBuildability 40/100 · Incomplete documentation
    • No license
    Cost not stated

  • Airplane

    A small quadrotor drone based on STM32 that can fly stably.

    DroneIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • BetaBots Robot Arm

    A 3D-printable robot arm, current version V4 (Green), designed for printing and assembly by hobbyists.

    Robot armIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • DrawBot

    A writing robot with a 2040 aluminum frame and Core-XY structure that automates handwriting tasks.

    OtherIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Dummy Robotic Arm

    A compact smart robotic arm with 6 degrees of freedom, designed for educational and hobbyist use.

    Robot armIntermediateBuildability 35/100 · Incomplete documentation
    • No license
    ¥2,000≈ €267 (ECB rate, 15 Oct 2026)

  • Easy Quadruped Robot

    A simple quadruped robot controlled by Arduino and optionally ESP32-CAM for vision.

    QuadrupedIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Educational Rover

    An educational wheeled rover controlled by a Raspberry Pi Zero W, with a DRV8835 motor driver, OLED display, 9-axis sensor and LEDs.

    WheeledIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • electronBot

    A desktop-sized open-source robot with 6 degrees of freedom, enhanced with AI capabilities via ESP32, designed for education and maker projects.

    HumanoidIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • ElectronBot Peripheral

    A collection of 3D-printable accessories and decorations for the ElectronBot robot.

    OtherIntermediateBuildability 35/100 · Incomplete documentation
    • No license
    Cost not stated

  • ESP-Drone

    An open-source mini drone/quadcopter firmware for ESP32 and ESP32-S series SoCs, controllable via Wi-Fi or gamepad.

    DroneIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Explorer EOD Rescue Robot

    A fully autonomous mobile robot designed for counter-terrorism, bomb disposal, and rescue tasks, featuring a four-wheel drive chassis, five-degree-of-freedom robotic arm, and multi-vision systems.

    WheeledAdvancedBuildability 35/100 · Incomplete documentation
    • Works with AI
    • No license
    Cost not stated

  • Forge 1

    An open-source 6-DOF desktop robotic arm powered by NEMA 17 stepper motors.

    Robot armIntermediateBuildability 35/100 · Incomplete documentation
    • Work in progress
    Cost not stated

  • GEARdrones

    A lightweight drone control and multi-agent localization system combining flight controller, UWB relative localization algorithm, and software monitor.

    DroneAdvancedBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Gretchen

    Gretchen is an open-source humanoid robot development platform.

    HumanoidAdvancedBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Jetson Nano Mouse

    A small two-wheeled differential-drive mobile platform robot built around a Jetson Nano, with dual cameras and 3D CAD data for its hardware.

    WheeledIntermediateBuildability 35/100 · Incomplete documentation
    Cost not stated

  • Mars Rover 2020

    A reproduction of the Mars 2020 Perseverance rover, a mars rover replica built as an open-source project.

    WheeledAdvancedBuildability 35/100 · Incomplete documentation
    Cost not stated

  • MickRobot

    An open-source single-arm mobile robot that adds a 7-degree-of-freedom arm to a mobile chassis for grasping and carrying tasks in complex environments.

    Robot armAdvancedBuildability 35/100 · Incomplete documentation
    • No license
    Cost not stated

Robots 145–168 of 270

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