Looking for an alternative to Proto.io?

UXPin is the perfect alternative to Proto.io, making your prototypes look and feel like the final product. See why product teams from startups to enterprises decided to make the switch from Proto.io to UXPin.

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Comparing UXPin 
and Proto.io

When it comes to creating fully-interactive prototypes, design handoff, or team collaboration, UXPin offers a lot more flexibility and powerful features than Proto.io. Unlike Proto.io, UXPin bridges the gap between design and development with features like Spec mode, Documentation, and Style guides. Live collaboration in UXPin makes it possible to invite other designers to work with you in real-time. 

On top of that, UXPin lets you create inclusive designs for everyone. Thanks to the built-in Contrast Checker and Color Blindness Simulator, you’ll know that your design meets the W3C accessibility standards. 

Better yet  – you can even simulate how your prototype works through the API request feature that lets you  create app prototypes that “talk” with your products. For example, as a car manufacturing company, you could build a prototype that communicates with vehicles. You can even save data from the prototype to a spreadsheet.

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See how UXPin stacks up against other tools

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UXPin is easy for anyone to use



Designing becomes much easier with built-in libraries, shapes, media, form elements, interactions, and animations that work for you.

Build an intuitive prototype that you can confidentially share with stakeholders, team members, and your user testing group.

Share a link to your design, get feedback from colleagues, and collaborate within a shared environment.

Contextual feedback

Inspect the details – fonts, CSS, measurements, etc. – from one place to keep everything updated and accurate.

Spec mode

Team members can work on any device with macOS, Windows, or a web browser.


Sketch import

Import your Sketch files and use UXPin to turn them into interactive prototypes.

UXPin's collaborative designing environment works like Google Docs – everyone can contribute in real-time to get the best results.

Co-design in real time

I'm trying to understand what all the hype around Figma is about lately. Feature for feature, it kinda seems like @uxpin-lite.

@igaenssley, Twitter

UXPin's prototyping and animation tools

Design, prototype, iterate, and collaborate in one place. Build truly interactive prototypes directly in UXPin and share them with anyone.

UXPin vs Proto.io full comparison


Design collaboration like in Google Docs

Most UX development solutions make designers work in silos. They can't share their work until they finish. UXPin takes an alternative approach by encouraging collaboration at every step of the process. If you can collaborate in Google Docs, then you can use UXPin.

And design from a single source of truth with your team

Style guide

Maintain a summary of every project's colors, fonts, and assets for a more cohesive experience.

Shared component libraries

Add ready-to-use UI components, colors, text style, and assets to project libraries.

Design Systems

Build consistent Design Systems that are easy to maintain and share with team members.

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UXPin saves us hundreds of hours of product development by simplifying collaboration. Plus, with its great library of components, I can literally go in, cut and paste a component into my design, and we’re off and running.

Larry Sawyer

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UXPin is a design and prototyping solution chosen by the best.

Interactive form elements

As an alternative to Justinmind, UXPin lets you speed up prototyping with native HTML inputs. Say goodbye to static imitation. Instead, you can use interactive text fields, checkboxes, and radio buttons that work like the real thing.


Design different versions of any element and animate between them. Update properties between states with just one click. In UXPin, each element can have several states with a different set of properties and interactions.

Real data

Make your prototypes look and feel more real. Fill them with auto-generated names, cities, and even images. It just takes two clicks using UXPin’s built-in data. That’s right, no more lorem ipsum or searching for images on stock sites.

Multi-platform, works on Windows, Mac or in the browser.


Engineers have access to up-to-date designs and can inspect all information about layers, export assets and copy code.

Co-design on the same file in real time.

Make your prototype work with third party tools through API requests.

Create different states of any element and animate between these states. Update properties between states with just one click.

Responsive design.

Built-in accessibility features.


Native HTML inputs, tables, etc. No coding required.

Team libraries with interactive components.

Get much closer to real, coded apps — add if/else logic to your interactions, store user input and reuse it later on the design.

Document components to team libraries. Then, share an automatically-generated, customizable web view of your design system with the components.

Version history

View previous versions of your prototype and verify design ideas based on them.

Smooth handoff

With just a few clicks, developers can access, copy, and even download all the specs they need before taking your work from design to development – from dimensions to colors to CSS code.

Create inclusive designs and keep them perfectly in line with accessibility standards. View them as people with one of the eight different types of color blindness.

Built-in accessibility tools

Draw any shape with vector drawing tools.

1Web only.