What Proto.io does

Proto.io is a web-based, no-code prototyping platform that enables users to create interactive, high-fidelity prototypes of web and mobile applications without writing code or installing software. Founded in 2011 and headquartered in San Francisco (legal entity PROTOIO Inc., Delaware), the company serves UX/product designers, product managers, entrepreneurs, marketers, and developers, with marquee reference customers including Amazon, PayPal, IDEO, Indiegogo, King, Nordstrom, and Showtime. The core editor is 100% browser-based and combines a drag-and-drop interface with a substantial pre-built content library of 250+ native UI components across five platforms (iOS, Android, Material Design, Windows, watchOS), 1,000+ customizable templates, and 6,000+ digital assets, supported by 80+ interaction events, 40+ actions, 18 screen transitions, and a timeline-based animation engine with custom easings and Lottie support.

The business operates a product-led growth model anchored on a 15-day full-featured free trial with no credit card required, followed by a freemium tier and four paid subscription plans (monthly, semi-monthly, and annual billing), with multi-year enterprise contracts available. A 50% discount applies to students and non-profits, and a Park account feature allows temporary subscription pauses. Distribution is dual-track: self-serve direct sign-up via the website and native Proto.io Player apps on iOS and Android for offline preview, supplemented by enterprise sales for larger teams. Revenue is recurring subscription-based, with no public disclosure of ARR, revenue, funding history, or ownership structure; the company appears to be bootstrapped with no disclosed institutional investors. The strategic moat rests on ecosystem integrations with Figma, Sketch, Adobe XD, Photoshop, Jira, Confluence, Trello, and major user testing platforms, the Proto.io Spaces community showcase, and enterprise-grade security certifications (ISO/IEC 27001, GDPR, 256-bit SSL). The company won the Proddy Award for Top Prototyping Product in 2024.

Name

Proto.io

Legal name

PROTOIO Inc.

Website

https://proto.io

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Proto.io is a web-based, no-code interactive prototyping platform serving UX designers, product managers, and entrepreneurs with a 250+ component UI library, 1,000+ templates, and integrations with Figma, Sketch, and Adobe XD on a freemium-plus-subscription SaaS model.

Ownership category

akta.pro rank

Product category

UX Prototyping Software

NAICS

Software Publishers (5132)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Low-Code/No-Code Application Platforms (HDAEAKAA)

akta.pro secondary industry

Low-Code/No-Code Application Development & Modernization (BPAEAFAF)

Keywords

• Interactive prototyping software
• UI design tools
• No-code prototyping
• Wireframing software
• Design collaboration platform

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Subscription Plans: Proto.io generates revenue through tiered subscription plans with monthly, semi-monthly, or annual billing options. Plans include varying levels of projects, users, and features. They offer 4 different pricing plans including a free limited plan and enterprise options with custom pricing.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Proto.io provides a 100% web-based, no-code interactive prototyping platform that enables users to build high-fidelity, clickable prototypes for web and mobile applications through a drag-and-drop editor. The platform ships with 250+ native UI components spanning iOS, Android, Material Design, Windows, and watchOS, 1,000+ ready-made templates, 6,000+ digital assets, advanced timeline-based animations, 80+ touch events, variables and conditional logic, and dedicated mobile preview apps for iOS and Android.

Product overview

Proto.io is a web-based, no-code prototyping platform designed for UX designers, entrepreneurs, product managers, marketers, and anyone creating interactive prototypes. The core offering centers on the Web-Based Editor with 250+ UI Components across 5 platform libraries (iOS, Android, Material Design, Windows, WatchOS) and 1,000+ Templates. The platform supports 80+ interaction events, 40+ actions, and 18 screen transitions with advanced animation capabilities. Key products include the UI Component Library (the foundational building blocks), Templates (pre-built design patterns), Proto.io Spaces (community showcase for sharing and learning), Material Design Library (dedicated Google design system components), and Apple Watch Prototyping (watchOS-specific components). Collaboration features include sharing, commenting, user testing integrations, and export capabilities. The platform offers tiered plans including Free, paid subscriptions, Enterprise (with SSO and advanced security), and Educational plans.

Differentiator

Problem solved

Functional benefit

Brands

• Proto.io Spaces: A community-driven showcase platform for interactive design examples built by designers, allowing users to share, explore, and learn from prototypes.

Products and services

• Proto.io Prototyping Platform

Quantifiable outcome

• 500,000+ users worldwide

Named customers7 records

Segments7 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration14 records

Feature9 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• FigmacoreTechnology or IntegrationProto.io offers a native plugin for Figma that allows designers to export their Figma designs into Proto.io and use Proto.io's extensive prototyping and interactivity capabilities to create fully-interactive prototypes.
• SketchcoreTechnology or IntegrationProto.io plugin for Sketch exports Sketch files into Proto.io while maintaining all layers and prototyping links, enabling rapid high-fidelity prototype creation.
• Adobe XDcoreTechnology or IntegrationProto.io Plugin for Adobe XD brings XD files into Proto.io, allowing designers to add interactions and animations to enhance their designs.
• JiracoreTechnology or IntegrationProto.io Plugin for Jira embeds interactive prototypes into Jira issues, ensuring teams stay synchronized throughout the development process.
• ConfluencecoreTechnology or IntegrationConfluence Macro embeds interactive Proto.io prototypes into Confluence pages, keeping teams aligned with up-to-date prototype previews.
• PayPalminorOthersPayPal is used as a payment gateway service provider for processing subscription payments.
• BraintreeminorOthersBraintree (a PayPal service) handles credit card and payment processing for Proto.io subscriptions.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Framer: Framer is a no-code web publishing and prototyping platform that lets designers build interactive, production-ready sites without code. It directly competes with Proto.io for high-fidelity interactive prototyping use cases and is venture-backed with a much larger marketing budget.
• Marvel: Marvel is a web-based design and prototyping platform focused on wireframing, interactive prototypes, and user testing. It competes with Proto.io for SMB and mid-market UX designers looking for simpler, browser-based tooling.
• Adobe XD: Adobe XD was Adobe's dedicated UX design and prototyping tool before Adobe discontinued active development in 2023. It competed head-to-head with Proto.io on interactive prototyping and remains a reference point in the category.
• Figma: Figma is the dominant collaborative design tool and has aggressively expanded native prototyping, variables, and advanced animations. It is the single largest competitor and integration partner for Proto.io, directly serving the same UX designer and product manager persona.
• Axure RP: Axure RP is a high-fidelity prototyping and specification tool aimed at UX designers, product managers, and business analysts. It overlaps with Proto.io on advanced interaction prototyping, conditional logic, and enterprise documentation workflows.
• Sketch: Sketch is a macOS-native vector design tool with built-in prototyping features and its own plugin ecosystem. It targets the same UX/UI designer segment as Proto.io and is a direct upstream source via the Sketch-to-Proto.io plugin.
• UXPin: UXPin is a design and prototyping platform with strong component-driven workflows and Merge technology for code-backed design systems. It targets the same enterprise product design and design system use cases as Proto.io.
• Balsamiq: Balsamiq is a low-fidelity wireframing tool used by product managers, business analysts, and designers. It competes with Proto.io at the early-stage concepting end of the prototyping workflow.
• Justinmind: Justinmind is an all-in-one prototyping platform for web and mobile apps with strong support for requirements specification and developer handoff. It overlaps with Proto.io on interactive prototyping and enterprise collaboration features.

Emerging players

• Galileo AI: Galileo AI is an AI-first UI generation tool that creates editable designs from natural language prompts. It represents the emerging AI-native wave that could disrupt traditional drag-and-drop prototyping tools like Proto.io.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/protoio
• Facebookfacebook.com/protoio
• LinkedInlinkedin.com/company/proto-io

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Proto.io