vioscaleAI
Comparison

Proto.io vs Zeplin

On the evidence we track, Zeplin leads this comparison with a composite score of 69/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Proto.io full profile →Zeplin full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Proto.io57
★Zeplin69
Score
vioscaleAI score
Proto.io57 / 100medium · 56%
Zeplin69 / 100low · 40%
Pricing
Free tier
Proto.io✓
Zeplin✓
Model
Proto.iofreemium
Zeplinfreemium
Price level
Proto.iomid
Zeplinlow
Starting price
Proto.io–
Zeplin$12
Transparent
Proto.io✓
Zeplin✓
Integrations
Count
Proto.io4
Zeplin8
Security
Gdpr
Proto.io✓
Zeplin✓
Iso27001
Proto.io✓
Zeplin–
Trust center
Market
Availability
Content
Faq
Proto.io7 items
Zeplin7 items

Capabilities

Feature-by-feature on the axes that matter for ui/ux & prototyping tools. “-” means undocumented, not absent.

Design
Vector UI design
Proto.io✓
Zeplin-
Component / design-system libraries
Proto.io✓
Zeplin✓
Auto layout / responsive
Proto.io-
Zeplin-
Prototyping
Clickable prototyping
Proto.io✓
Zeplin-
Advanced interactions (variables / conditions)
Proto.io✓
Zeplin-
Collaboration
Real-time multiplayer collaboration
Proto.io-
Zeplin✓
Handoff
Dev handoff / spec export
Proto.io✓
Zeplin✓
Platform
Platform breadth (Web / macOS / Windows / Linux / self-hosted)
Proto.ioWeb, iOS, Android
ZeplinWeb application, VS Code extension, integrations with Jira, Azure DevOps, Slack,
Licensing
Self-hostable / open-source
Proto.io✗
Zeplin✗
AI
AI design assist
Proto.io-
Zeplin✓
Pricing
Pricing model
Proto.ioFreemium
ZeplinFreemium
Ecosystem
Plugin / community ecosystem
Proto.io-
ZeplinOfficial integrations with design tools (Figma) and dev tools (Jira, Azure DevOp

What each one is

The product in its own terms, so the numbers below have context.

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

Zeplin

Leader

Zeplin is a collaboration platform where design teams finalize designs, document requirements, manage versions, and handoff to developers with integrated code generation. It sits between design creation tools and development environments, keeping specifications organized and synchronized without disrupting the design process.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Proto.io

from $29/moSubscriptionFree tier15-day trial

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

  • FreeFree
    • Preview in Proto.io App
    • Export to HTML
    • Export to PNG & PDF
    • Import from design tools
    • Branding
    • +1 more
  • Freelancer$24/mo (annual) or $29/mo (monthly)
    • Preview in Player
    • Preview in Proto.io App
    • Share
    • Comments
    • Unlimited reviewers
    • +5 more
  • Startup$40/mo (annual) or $49/mo (monthly). Most popular.
    • Preview in Player
    • Preview in Proto.io App
    • Share
    • Comments
    • Unlimited reviewers
    • +5 more
  • Agency$80/mo (annual) or $99/mo (monthly)
    • Preview in Player
    • Preview in Proto.io App
    • Share
    • Comments
    • Unlimited reviewers
    • +5 more
  • Corporate$160/mo (annual) or $199/mo (monthly)
    • Preview in Player
    • Preview in Proto.io App
    • Share
    • Comments
    • Unlimited reviewers
    • +5 more
  • EnterpriseContact sales
as of verify ↗

Zeplin

Leader
from $12/seat/moHybridFree tier

Free tier available. Per-project and per-seat options. Advanced from $12/seat/month.

  • FreeFree
    • Code-connected components
    • Jira & Azure integrations
    • Storybook integration
    • Slack & Teams
    • VS Code extension
    • +3 more
  • BasicOne flat rate per project (packs of 1, 3, 6, 9, or 12); annual plans include 1 month free
    • All Free features
    • Styleguides and component versioning
    • Component variants
    • No user dashboard or advanced permissions
  • Advanced$12 per seat/month billed annually
    • All features
    • User dashboard
    • Admin, Editor, Developer, and Reviewer roles
    • SAML-based SSO
    • MFA
    • +4 more
  • EnterpriseContact sales
    • All features
    • Success Manager
    • Custom configuration
    • 24-hour support SLA
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Proto.io✓
Zeplin✓
iOS
Proto.io✓
Zeplin✗
Android
Proto.io✓
Zeplin✗
Deployment
Cloud / SaaS
Proto.io✓
Zeplin✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • Figma

Proto.io

4 total - 3 not shared
  • Sketch
  • Adobe XD
  • Photoshop
Independently observed

Zeplin

Leader
11 total - 10 not shared
  • Jira
  • Azure DevOps
  • VS Code
  • Storybook
  • Slack
  • Teams
  • Zeplin API
  • Webhooks
  • Microsoft Teams
  • Zeplin MCP Server
Independently observed
Still deciding?

Proto.io or Zeplin: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

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

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.