vioscaleAI
UI/UX & Prototyping ToolsUnclaimed

Proto.io

Drag-and-drop prototyping platform for creating interactive digital designs without coding

Visit websiteCompare alternatives
Also known as
proto-io

Available worldwide

What is Proto.io?

Proto.io is a cloud-based prototyping platform where designers create interactive mockups for web and mobile through a visual editor with pre-built component libraries and templates. It supports sharing for review, animation effects, interaction patterns, and various preview options—all without requiring programming knowledge.

Independently observed

Proto.io pricing

Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.

Pricing as of verify at live pricing ↗Independently observed
from $29/moSubscriptionFree tier15-day trial

From $24/mo (annual billing). Free tier and 15-day trial available.

Free

Free
Free
min 1 seats

1 user, 1 active project, limited features

storage_mb
10
active_projects
1
prototype_screens
5
  • Preview in Proto.io App
  • Export to HTML
  • Export to PNG & PDF
  • Import from design tools
  • Branding
  • Single-click sharing

Freelancer

$24/mo (annual) or $29/mo (monthly)
min 1 seats

1 user, 5 active projects

active_projects
5
  • Preview in Player
  • Preview in Proto.io App
  • Share
  • Comments
  • Unlimited reviewers
  • Export to HTML/PNG/PDF
  • Branding
  • Import from design tools
  • 256-bit SSL encryption
  • Real-time chat support

Startup

$40/mo (annual) or $49/mo (monthly). Most popular.
min 2 seats

2 users, 10 active projects

active_projects
10
  • Preview in Player
  • Preview in Proto.io App
  • Share
  • Comments
  • Unlimited reviewers
  • Export to HTML/PNG/PDF
  • Branding
  • Import from design tools
  • 256-bit SSL encryption
  • Real-time chat support

Agency

$80/mo (annual) or $99/mo (monthly)
min 5 seats

5 users, 15 active projects

active_projects
15
  • Preview in Player
  • Preview in Proto.io App
  • Share
  • Comments
  • Unlimited reviewers
  • Export to HTML/PNG/PDF
  • Branding
  • Import from design tools
  • 256-bit SSL encryption
  • Real-time chat support

Corporate

$160/mo (annual) or $199/mo (monthly)
min 10 seats

10 users, 30 active projects

active_projects
30
  • Preview in Player
  • Preview in Proto.io App
  • Share
  • Comments
  • Unlimited reviewers
  • Export to HTML/PNG/PDF
  • Branding
  • Import from design tools
  • 256-bit SSL encryption
  • Real-time chat support

Enterprise

Contact sales
Contact sales

Custom users and projects, unlimited active projects, SSO, enterprise-grade security

What Proto.io does

The capabilities that matter for ui/ux & prototyping tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Design
Vector UI design
✓
Component / design-system libraries
✓
Auto layout / responsive
-
Prototyping
Clickable prototyping
✓
Advanced interactions (variables / conditions)
✓
Collaboration
Real-time multiplayer collaboration
-
Handoff
Dev handoff / spec export
✓
Platform
Platform breadth (Web / macOS / Windows / Linux / self-hosted)
Web, iOS, Android
Licensing
Self-hostable / open-source
✗
AI
AI design assist
-
Pricing
Pricing model
Freemium
Ecosystem
Plugin / community ecosystem
-
Independently observed

Platform & deployment

Independently observed
Platforms
  • iOS
  • Web
  • Android
Deployment
  • Cloud / SaaS

Integrations (4)

Independently observed
  • Sketch
  • Figma
  • Adobe XD
  • Photoshop

Proto.io FAQ

Common questions about Proto.io, answered from independent, dated evidence.

What is Proto.io?

Proto.io is a cloud-based prototyping platform where designers create interactive mockups for web and mobile through a visual editor with pre-built component libraries and templates. It supports sharing for review, animation effects, interaction patterns, and various preview options—all without requiring programming knowledge. It is indexed under UI/UX & Prototyping Tools.

Source: https://proto.io/en/pricing/

Is Proto.io free?

Proto.io offers a free tier, so you can start without paying. Paid plans start at $29 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.

Source: https://proto.io/en/pricing/

What platforms does Proto.io support?

Proto.io supports the web, iOS and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.

Source: https://proto.io/en/pricing/

Can Proto.io be self-hosted?

We have only confirmed a cloud / SaaS deployment for Proto.io, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.

Source: https://proto.io/en/pricing/

What does Proto.io integrate with?

We have confirmed 4 integrations for Proto.io, including Sketch, Figma, Adobe XD and Photoshop. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://proto.io/en/pricing/

What security certifications does Proto.io have?

We have independently confirmed ISO 27001 and GDPR for Proto.io. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Proto.io not holding them. Always confirm compliance directly before you rely on it.

Source: https://proto.io/en/security/

Where is Proto.io available?

Proto.io is available worldwide. The vendor is headquartered in the United States.

Source: https://proto.io/en/pricing/

Proto.io alternatives

Other ui/ux & prototyping tools we track, ranked by the same independent score.

All Proto.io alternatives, ranked →

Compare Proto.io

Side by side against other ui/ux & prototyping tools, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Proto.io, not the verdict.

Balanced composite 57 / 100
medium · 56%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Pricing transparency1000.088.4✓
Capabilities750.043.0✓
Price level500.052.6✓
Security posture300.061.9✓
Integrations200.051.0✓
Reliability00.060.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Content

AttributeValueEvidence
Faq7 itemsmediumsource · 2026-09-10 · 64%

Features

AttributeValueEvidence
CapabilitiesDev handoff: Yes · Pricing model: freemium · Self hostable: No · Vector design: Yes · Platform breadth: Web, iOS, Android · Component libraries: Yesmediumsource · 2026-08-14 · 60%

Integrations

AttributeValueEvidence
Count4mediumsource · 2026-08-14 · 60%

Market

AttributeValueEvidence
AvailabilityHqCountry: US · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …highsource · 2026-08-14 · 75%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-08-14 · 60%
Modelfreemiummediumsource · 2026-08-14 · 60%
Price levelmidmediumsource · 2026-08-14 · 60%
TransparentYesmediumsource · 2026-08-14 · 60%

Security

AttributeValueEvidence
GdprYeshighsource · 2026-08-14 · 75%
Iso27001Yeshighsource · 2026-08-14 · 75%
Still deciding?

Is Proto.io the right choice for you?

Tell us the job, the constraints and what you weigh most, and we will rank Proto.io against the rest of the ui/ux & prototyping tools we index, using the same dated evidence weighted your way.

Free to run, no account needed to start. How the evaluation works

For the makers of Proto.io

Is this your product?

This profile was built from public sources without asking you. You can take the badge below and use it anywhere, and you can claim the profile to correct anything we got wrong. Both are free, and neither moves Proto.io up or down: nobody can buy rank here, including you.

Take the badge

Live, always current, and free to use on your own site. It shows Proto.io's independent score and links back to this profile.

Proto.io, verified on vioscaleAI
HTML
<a href="https://www.vioscale.ai/software/proto-io" target="_blank" rel="noopener">
  <img src="https://www.vioscale.ai/badge/software/proto-io.svg" alt="Proto.io, verified on vioscaleAI" width="330" height="76" loading="lazy" />
</a>
Markdown, for a README →
Markdown
[![Proto.io, verified on vioscaleAI](https://www.vioscale.ai/badge/software/proto-io.svg)](https://www.vioscale.ai/software/proto-io)

Claim the profile

Verify you control the domain and you can correct the facts, add the sources we should be reading, and see how AI assistants are describing Proto.io. Free, and it does not change the score.

  • Correct anything wrong, with evidence
  • Point our crawler at the pages that matter
  • See which AI systems are reading this profile
Claim Proto.io

Not the owner? How vendor profiles work