Communicate the functionality behind your designs and improve communication
Add different levels of interactivity based on your project's needs and go from a simple wireframe to a prototype that feels real

All web and mobile events.

Interactions with no limits.

Give motion to your design

Take your prototype's interactivity one step further by introducing micro-animations with Proto
io's powerful animation features

Connect your screens together with any one of the 18 smooth, out-of-the-box transitions like slide, push, pop, and many more

Timeline-based state animations that give full control to animate any layer, any way you want
Adjust timing, easing, duration, and fine-tune to perfection

Change any property on the fly
Apply animation effects, filters and shadows
Change opacity, colors, fonts, rotate, resize or scale
Animate with no limits

Try Proto.io for free for 15 days.

Explore your prototype on the web or on a mobile browser
Use the Proto
io native apps for iOS or Android while prototyping for easier previewing or for viewing offline

Send a single or multiple Share links
Export to PDF, PNG or HTML to view offline
Share a snapshot of your prototype at an exact point in time

Give & receive feedback with comments
User test with popular user testing platforms

Unleash the full power of Proto.io

Import from Design tools

Support for any device

Import content from web

Google fonts, Adobe fonts or upload your own

Video, Audio, Gif, Lottie support

The prototyping solution for all your needs.

An abundance of resources

Our huge library of resources includes documentation, sample projects, video tutorials, step-by-step guides, and webinars to get you started or take you to the next level

Our friendly support team is always willing to help and dive in when asked, to assist you with your project on a case-by-case basis

State of the art security

Work alone or in a team of any size
Our flexible granular security model can accommodate the needs of any size
Encrypted and secure

"It helps us to develop a realistic prototype with complex features quickly
This leads to a very powerful demo for client buy-in of the design
"
"Robust features make this tool stand out
Other non-code-based UI prototyping tools I've used lack the range of features-like animation and gesture support-that Proto
io offers
"
"Proto
io is our tool of choice for prototyping mobile interactions in the concept phase
I found the custom transitions especially helpful in articulating the vision of the app to both customers and stakeholders
"
Director of Mobile Design
"Proto
io is one of the best tools available to make prototypes come to life
It's extremely easy to use and it comes super handy to quickly explain interactions, gestures and layout to both peers and clients
"