• Silly-fast mobile prototyping.
    Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should.
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  • Introducing
    Proto.io V5
    Create animated interactions easier and faster, make UI items draggable, apply new touch, mobile and web compatible gestures and start capturing data and doing simple calculations.
    V5 latest features
  • Prototype for any device
    That includes smart TVs, gaming devices, refrigerators, alarm clocks, cars and any other interface you can think of
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  • Make any item animated
    The first ever prototyping tool that supports full feature animations
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  • Preview your prototypes natively
    You can now preview your prototype on an iOS or Android device natively, without obstructions and irrespective of the device it was designed for! Download the free app.
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Awesome prototypes for any device

Turn your wireframes and mobile mockups into amazing interactive prototypes. Filled with rich media, animations and touch events.

Test your prototype on the actual device

Swipe, tap, rotate and examine your app inside out the same way your end user will.

Share, Annotate and get valuable feedback

Share your prototype with colleagues and friends to collaborate and review.

Amazing tools, amazing results

Our demos speak for themselves. View them all here.

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World class mobile prototyping

What our users say

@protoio what attracted me to proto.io is its perfect web UI before even trying the tool "These guys know what they're doing"
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proto.io is a great tool for prototyping mobile apps that supports animations. Truly a worthy prototyping solution @protoio
Thumbs up high fives to the @protoio team for such great customer support!
if all software had support like #protoio any user would be delighted about software. they're just amazing. thanks @protoio
Love it when I can crank out killer prototypes one after another. Thanks @protoio for helping me deliver a great presentation today! #ux

Stay in the loop

#3 Instagram – Prototyping the most popular apps!

19 August, 2014

Proto.io “Prototyping the most popular apps” is a series of videos where we recreate popular UI’s and interactions with Proto.io.

From the instructor (Constantinos Demetriadis):
In this tutorial, we’re looking at Instagram’s UI and specifically focusing on a pull-to-refresh action along with how the header reacts to the position of the feed. Again, we’re using variables, and a different approach to scrolling content in order to synch animations.

Note: If you haven’t been exposed to variables in Proto.io, you should watch the introductory video beforehand.

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