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This article was published on October 19, 2011


    Prove you’re human on the Web by drawing shapes, not typing letters, with MotionCATPCHA

    Prove you’re human on the Web by drawing shapes, not typing letters, with MotionCATPCHA
    Nikola Krajačić
    Story by

    Nikola Krajačić

    Nikola Krajačić is a simple geek and technology journalist from Croatia, Europe. You can follow him on Twitter or subscribe to his public Fa Nikola Krajačić is a simple geek and technology journalist from Croatia, Europe. You can follow him on Twitter or subscribe to his public Facebook updates.

    Recently, I was in a situation where Facebook asked me to enter some CAPTCHA code. I usually don’t have problems with it, but when I got asked to enter some characters that I don’t even have on my keyboard, I was stunned. How am I supposed to do that?

    Thanks to the spam bots all over the world, today’s CAPTCHA codes are so much complicated that you can hardly read them. We, as a society, will soon need some new methods to identify as a human and not a programmed bot.

    MotionCAPTCHA might be a great candidate for replacing the standard textual confirmations. The idea behind it is brilliant; you get a shape which you have to redraw. Shapes are simple, a triangle or a skewed line, basic doodles you would do on a piece of paper. The realisation is definitely great, because it doesn’t require from you to be pixel-perfect, you can make big mistakes, but as long as your mouse (or trackpad) movement looks like a shape in the picture – you’ll pass.

    Draw a shape!

    As Joss Crowcroft, the author of the project describes it, MotionCAPTCHA is a simple jQuery plugin based on HTML5 Canvas Harmony procedural drawing tool.

    At the moment, MotionCAPTCHA is just a proof-of-concept, but the next releases will get some major enhancements and the ability to use it as a serious CAPTCHA alternative.

    Take a look at this video demonstrating how MotionCAPTCHA works and try it out for yourself!

    Also, read the story behind CAPTCHArt.