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

Robots, the body: the machines you build: 3D-printed parts, motors and electronics. What's the difference?

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Ready to build: a score of 80 or more, a license, a finished design, a known cost and a real photo of it built.

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Where the project was published, known for 63 of 491 robots. Never guessed.

Guide translated from

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

100 of 491 robots state a cost. Costs in other currencies are compared using the ECB reference rate of 5 Nov 2026. Robots without a known cost are hidden unless you include them.

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53 robots of 491

Sort:Most buildable
GridTable
  • Ready to build

    Open source · free files

    Giraffe

    Robot arm · Intermediate

    Score
    Buildability 100 out of 100
    Cost
    ₹14,585.71≈ €138
  • Ready to build

    Open source · free files

    Hand Exoskeleton

    Robot arm · Intermediate

    Score
    Buildability 100 out of 100
    Cost
    ¥500≈ €67
  • Ready to build

    Open source · free files

    SO-101

    Robot arm · Beginner

    Score
    Buildability 98 out of 100
    Cost
    €226.30
  • Ready to build

    Open source · free files

    Just1

    Wheeled · Intermediate

    Score
    Buildability 94 out of 100
    Cost
    $250≈ €223
  • Ready to build

    Open source · free files

    PingTi Arm

    Robot arm · Intermediate

    Score
    Buildability 89 out of 100
    Cost
    $261≈ €233
  • Ready to build

    Open source · free files

    AmazingHand

    Other · Intermediate

    Score
    Buildability 88 out of 100
    Cost
    under €200
  • Ready to build

    Open source · free files

    LazyBot (WRO 2025)

    Self-driving 1:10 · Advanced

    Score
    Buildability 88 out of 100
    Cost
    $283.81≈ €253without the 3S LiPo battery and the custom circuit board
  • Ready to build

    Open source · free files

    Sesame Robot

    Quadruped · Beginner

    Score
    Buildability 88 out of 100
    Cost
    $50–$60≈ up to €53
  • Ready to build

    Open source · free files

    Watney

    Wheeled · Intermediate

    Score
    Buildability 88 out of 100
    Cost
    $170≈ €151
  • 3D render
    Ready to build

    Open source · free files

    HACK FLY 32

    Drone · Advanced

    Score
    Buildability 86 out of 100
    Cost
    $105≈ €94without the battery, the FPV camera and the radio you fly it with
  • Ready to build

    Open source · free files

    DigiArm Prosthetic Hand

    Other · Advanced

    Score
    Buildability 85 out of 100
    Cost
    $250≈ €223
  • Ready to build

    Open source · free files

    Hexapod

    Hexapod · Advanced

    Score
    Buildability 84 out of 100
    Cost
    €280
  • Ready to build

    Open source · free files

    ArmSync

    Robot arm · Advanced

    Score
    Buildability 83 out of 100
    Cost
    ¥1,500≈ €200
  • No photo yet
    Ready to build

    Open source · free files

    Yertle

    Quadruped · Advanced

    Score
    Buildability 83 out of 100
    Cost
    £250≈ €300
  • Ready to build

    Open source · free files

    MARPY

    Wheeled · Beginner

    Score
    Buildability 81 out of 100
    Cost
    $40–$55≈ up to €49
  • Ready to build

    Open source · free files

    R.O.B.I.N. Ornithopter

    Drone · Advanced

    Score
    Buildability 81 out of 100
    Cost
    £206≈ €247
  • 3D render

    Open source · free files

    FloatingFace

    Other · Advanced

    Score
    Buildability 100 out of 100
    Cost
    $328.47≈ €293
  • No photo yet

    Open source · free files

    Robotic Arm

    Robot arm · Intermediate

    Score
    Buildability 94 out of 100
    Cost
    ¥481≈ €64
  • Photo on GitHub

    No license yet

    HumbleArm

    Robot arm · Intermediate

    Score
    Buildability 85 out of 100
    Cost
    ¥200≈ €27
  • 3D render

    Open source · free files

    LibreRover

    Wheeled · Beginner

    Score
    Buildability 81 out of 100
    Cost
    €17–€27
  • Photo on GitHub

    Non-commercial license

    Aero Hand Open

    Robot arm · Intermediate

    Score
    Buildability 79 out of 100
    Cost
    $314≈ €280
  • No photo yet

    Open source · free files

    Bambot

    Humanoid · Intermediate

    Score
    Buildability 79 out of 100
    Cost
    $300≈ €267without the power bank, and the computer and camera it runs with
  • 3D render

    Open source · free files

    Mini-Arm

    Robot arm · Intermediate

    Score
    Buildability 79 out of 100
    Cost
    $100≈ €89

  • Open source · free files

    CALOU

    Other · Advanced

    Score
    Buildability 75 out of 100
    Cost
    €98.54+ your smartphone (not included)

Robots 1–24 of 53

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≈ € values are approximate, converted at the ECB euro reference rate of 5 Nov 2026. The creator's original price always comes first.