vioscaleAI
Comparison

Justinmind vs Pencil Project

On the evidence we track, Justinmind leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Justinmind full profile →Pencil Project full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Justinmind64
Pencil Project30
Score
vioscaleAI score
Justinmind64 / 100medium · 58%
Pencil Project30 / 100medium · 62%
Pricing
Free tier
Justinmind✓
Pencil Project✓
Model
Justinmindfreemium
Pencil Projectopen_source
Price level
Justinmindmid
Pencil Projectfree
Starting price
Justinmind$19
Pencil Project–
Transparent
Justinmind✓
Pencil Project–
Integrations
Count
Justinmind8
Pencil Project1
Security
Gdpr
Justinmind✓
Pencil Project–
Scorecard
Justinmind–
Pencil Project2.2
Vulnerabilities
Reliability
Status page
Justinmind✓
Pencil Project–
Adoption
Dependent repos
Justinmind–
Pencil Project0
Github stars
Justinmind–
Pencil Project9,875
Activity
Commits last 30d
Justinmind–
Pencil Project0
Release
Cadence days
Justinmind–
Pencil Project41
History
Justinmind–
Pencil Project11 items
License
Spdx
Justinmind–
Pencil ProjectGPL-2.0
Language
Primary
Justinmind–
Pencil ProjectJavaScript
Market
Availability
JustinmindAvailable worldwide · Popular in US
Pencil Project–
Content
Faq
Justinmind7 items
Pencil Project4 items

Capabilities

Feature-by-feature on the axes that matter for wireframing. “-” means undocumented, not absent.

Capabilities
Architecture model
JustinmindDesktop local application
Pencil ProjectDesktop local application
Enforced low fidelity sketch rendering aesthetic
Justinmind✗
Pencil Project-
Pre built ios android web UI component library
Justinmind✓
Pencil Project✓
AI generation from text prompts or napkin sketches
Justinmind-
Pencil Project-
Drag and drop click through user flow linking
Justinmind✓
Pencil Project✓
Real time multiplayer crdt cursor sync
Justinmind✓
Pencil Project-
Confluence and jira native iframe embedding
Justinmind✓
Pencil Project-
Export to high fidelity tools figma sketch
Justinmind✓
Pencil Project-
Click heatmap and basic usability testing integration
Justinmind✓
Pencil Project-
Offline editing mode
Justinmind-
Pencil Project✓
SOC2 type ii
Justinmind-
Pencil Project-
ISO 27001
Justinmind-
Pencil Project-
Pricing model
JustinmindPer editor seat monthly
Pencil Project-

What each one is

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

Justinmind

Leader

Justinmind enables designers to create interactive prototypes ranging from low-fidelity wireframes to high-fidelity simulations, complete with animations, interactions, and user flows. Teams can collaborate in real-time, test designs with users, and generate specifications documents before development begins.

Independently observed

Pencil Project

A freely available desktop tool for creating wireframes and mockups with built-in templates for web, mobile, and desktop user interfaces. Includes diagram drawing, interactive prototyping, and multi-format export capabilities.

Independently observed

Pricing

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

Justinmind

Leader
from $19/seat/moHybridFree tier

From free tier to $29/editor/month. Optional perpetual licenses also available (20% of list price annually for updates after year 1).

  • FreeFree
    • UI design and wireframing
    • Interactive input forms
    • Vector design
    • Pen tool
    • Export to PNG, JPG, SVG
    • +2 more
  • Standard$19/editor/month
    • Advanced interaction design
    • Forms design
    • Advanced collaboration
    • Teams management
    • Unified admin and billing
    • +5 more
  • Professional$29/editor/month
    • Masters
    • Smart templates
    • Data simulation
    • User flows
    • Export to HTML
    • +2 more
  • EnterpriseContact sales
    • SAML Single Sign-On
    • Shared fonts
    • Export to documents
    • Requirements management
    • JIRA & Azure DevOps integration
    • +2 more
as of verify ↗

Pencil Project

Open sourceFree tier

Free and open-source

as of verify ↗

Platform & deployment

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

Platforms
Web
Justinmind✓
Pencil Project✗
iOS
Justinmind✓
Pencil Project✗
Android
Justinmind✓
Pencil Project✗
macOS
Justinmind✓
Pencil Project✓
Windows
Justinmind✓
Pencil Project✗
Linux
Justinmind✗
Pencil Project✓
Deployment
Cloud / SaaS
Justinmind✓
Pencil Project–
Self-hosted
Justinmind✓
Pencil Project–
On-premise
Justinmind✓
Pencil Project–

Integrations

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

Justinmind

Leader
11 total
  • Sketch
  • Adobe XD
  • Adobe Photoshop
  • Adobe Illustrator
  • Figma
  • JIRA
  • Confluence
  • Azure DevOps
  • Usertesting
  • Validately
  • PhoneGap
Independently observed

Pencil Project

1 total
  • OpenClipart.org
Independently observed
Still deciding?

Justinmind or Pencil Project: 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.