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Proto.io

Create complex interactive prototypes without any coding.

Proto.io screenshot
Category:UX Tools
Subcategory:Prototyping Tools
Pricing:Paid

What it costs

Free tier
No

Paid prototyping tool with a 15-day free trial (no free plan); plan prices are on a separate /pricing page not scraped.

Auto-checked on 8 August 2026Source

About Proto.io

What Is Proto.io?

Proto.io is a paid UX tool designed for creating complex interactive prototypes without coding. It fits into the design workflow after initial wireframing and visual design, enabling designers to build functional mockups that simulate app and web interfaces. Users leverage its drag-and-drop interface to assemble prototypes for mobile apps, websites, tablets, wearables, and other screen-based projects, bridging the gap between static designs and development handoff.

What Proto.io Does

  • Provides a drag-and-drop interface with built-in UI libraries, including static and animated icons, stock images, and sound effects, for assembling prototypes without coding.
  • Supports full interactivity through touch events like double taps, pinch, swipe, and mouse events such as clicks, scrolls, and releases.
  • Enables timeline-based animations at 60 FPS, including moving, rotating, scaling, fading, loops, and property changes like opacity, colors, and filters.
  • Allows prototyping for various devices with custom screen sizes, from smartphones to watches, and includes native UI components for iOS, Android, and Windows.
  • Offers import capabilities from tools like Adobe XD, Figma, Photoshop, and Sketch to convert static designs into dynamic prototypes.
  • Includes advanced features such as AE Lottie vector animations, variables for capturing user input, and keyboard navigation for realistic interactions.

How Proto.io Can Be Used

  • Designers create low-fidelity wireframes by dragging UI components like status bars, buttons, and lists onto screens, then link them with taps or swipes to simulate navigation flows.
  • Teams build high-fidelity prototypes with animations, transitions like slide or push, and micro-interactions such as scrollable tab bars or snap paging for onboarding sequences and carousels.
  • Product managers prototype form elements with radio buttons, sliders, and input fields that capture and reflect user data via variables for dynamic feedback.
  • Developers preview interactions on web browsers, mobile apps for iOS/Android, or devices to test gestures, tooltips on hover, and multi-directional scrolling before handoff.
  • Collaborators share prototypes via links for review, annotations, comments, and testing across devices to gather feedback and iterate on designs.

Who Is Proto.io For?

Proto.io serves UX designers, product managers, and teams needing to prototype interactive experiences for mobile, web, tablet, or wearable interfaces. It suits users transitioning from tools like Figma or Sketch to functional testing, especially those handling multi-device projects requiring gestures, animations, and collaboration without developer involvement. Experience levels range from beginners using templates and libraries to advanced users implementing Lottie animations and variables. Visit Proto.io

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