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Justinmind

justinmind.com

From $19/mo Free plan WebWindowsmacOSiOSAndroidAPI
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Spec score 9.2 #1 of 29 in Wireframing Software

What it is

Justinmind is an interaction design and prototyping tool for web and mobile apps. It supports wireframes, high-fidelity prototypes and simulations, with web interactions, mobile gestures, action sequences and conditions built without code. Teams can model interactive forms, data lists and grids, while simultaneous editing and version control support shared work. UI kits, synchronized components, templates and masters provide ways to reuse design assets. Prototypes export as interactive HTML, and assets as SVG or PNG; the API can generate specification assets. Deployment options include cloud, self-hosted, desktop and mobile, and integrations include Figma, Adobe XD, Sketch, JIRA and Azure DevOps. The Free plan is $0 per editor/month and includes unlimited screens but only one project. Standard is $19 per editor/month, Professional is $29 per editor/month and Enterprise is $59 per editor/month. A 10-day trial is listed. Plans include a free option, and the product is presented for design teams, business analysts and developers working on UI assets and handoff.

Spec sheet

What it does
Justinmind is a desktop design and prototyping product for creating high-fidelity web and mobile prototypes, wireframes and no-code simulations.Read 15 Oct 2026 · justinmind.com
Product
Justinmind is an interaction design and prototyping tool for web and mobile apps, supporting wireframes, high fidelity prototypes and simulations.Read 30 Sep 2026 · justinmind.com
Intended users
The company describes use by design teams, business analysts and developers to share UI assets and support design handoff.Read 30 Sep 2026 · justinmind.com
Deployment
cloud, self hosted, desktop, mobileRead 21 Sep 2026 · justinmind.com
Free plan
YesRead 21 Sep 2026 · justinmind.com
Integrations
Official integrations include Sketch, Adobe Creative Cloud applications, Photoshop, Illustrator, Adobe XD, Figma, Jira, Confluence, Azure DevOps and user-testing services.Read 15 Oct 2026 · justinmind.com
Compliance
GDPR, pci dssRead 21 Sep 2026 · justinmind.com
Support
The pricing page includes customer support portal access, and Enterprise lists priority support.Read 30 Sep 2026 · justinmind.com
API and SDK
The API provides programmatic access to prototype information so plugins can generate deliverables, framework UI code and internal-tool integrations.Read 15 Oct 2026 · justinmind.com
Chromebook support
Justinmind support states that the desktop editor supports Windows and Mac but not Chromebook.Read 15 Oct 2026 · justinmind.com
Collaboration
Teams can co-edit prototypes, use comments and chats, review version history and manage users, roles and permissions.Read 15 Oct 2026 · justinmind.com
Company facts
LinkedIn describes Justinmind as a privately held software-development company founded in 2005 with headquarters in San Francisco and 11–50 employees.Read 15 Oct 2026 · linkedin.com
Company reach
Justinmind says it serves customers in more than 180 countries and its team works across Europe and the Americas.Read 30 Sep 2026 · justinmind.com
Company size fit
small, mid market, enterpriseRead 21 Sep 2026 · justinmind.com
Design systems
Users can create UI kits, share and synchronize UI components, and reuse content through templates and masters.Read 30 Sep 2026 · justinmind.com
Developer handoff
Developer mode exposes dimensions, assets and CSS information from prototypes for implementation handoff.Read 15 Oct 2026 · justinmind.com
Documentation and support
The help center contains getting-started material, training videos, user guides, advanced tutorials and Q&A forums; ticket support is reserved for Professional and Enterprise plans.Read 15 Oct 2026 · justinmind.com
Export and API
Prototypes can be exported as interactive HTML and assets as SVG or PNG, and the site says its API can generate specification assets.Read 30 Sep 2026 · justinmind.com
Exports
The product exports interactive HTML and JavaScript, image assets and specification documents in Word or PDF formats.Read 15 Oct 2026 · justinmind.com
Extensibility
Plugins use Java and the Eclipse RCP plugin system; the documentation includes tutorials, an HTML API reference, a developer PDF and source-code examples.Read 15 Oct 2026 · justinmind.com
Forms and data
Users can simulate interactive forms, data grids and lists, including importing CSV data into Data Masters.Read 15 Oct 2026 · justinmind.com
Free tier limit
The Free plan includes unlimited screens but is limited to one project.Read 30 Sep 2026 · justinmind.com
Hosting
The privacy policy identifies AWS as the backend storing personal data and names Braintree and Verisign SSL for payment processing.Read 15 Oct 2026 · justinmind.com
Interaction design
The product supports web interactions, mobile gestures, animations, transitions, sequences and conditional logic without coding.Read 15 Oct 2026 · justinmind.com
Interactions
Users can create web interactions, mobile gestures, action sequences and conditions without writing code.Read 30 Sep 2026 · justinmind.com
Legal entity and funding
Crunchbase lists the legal name as justInMind SL, founders Pablo Navarro and Xavier Renom, San Francisco and Barcelona locations, and Series A backing from Criteria Venture Tech.Read 15 Oct 2026 · crunchbase.com
Licence
Justinmind's terms reserve ownership of the service, interface, features and documentation and prohibit copying, modification and reverse engineering, indicating a proprietary product.Read 15 Oct 2026 · justinmind.com
Limit: Android viewer complaints
Google Play reviews mention missing fonts, expensive subscription pricing and inability to register inside the app.Read 15 Oct 2026 · play.google.com
Limit: free-tier restrictions
G2's review summary says users find the free version limited in features.Read 15 Oct 2026 · g2.com
Limit: mobile viewer complaints
Apple reviewers report missing registration or login problems, rendering defects, crashes when downloading off Wi-Fi and sluggish behavior.Read 15 Oct 2026 · apps.apple.com
Limit: navigation and feature gaps
GetApp feedback mentions important controls hidden in menus, requests for more toolbar customization and missing data-visualization capability.Read 15 Oct 2026 · getapp.co.uk
Limit: performance and support
TrustRadius testimonials report slow rendering on a modern Mac and delayed customer-service responses.Read 15 Oct 2026 · trustradius.com
Notable news
Release notes dated March 12, 2025 report version 10.7.4 adding Samsung Galaxy S25 and S25+ device frames and fixing Windows 11 filename and crash issues.Read 15 Oct 2026 · justinmind.com
Payment data
The privacy policy says Justinmind does not collect credit card information and sends payment data directly to Braintree.Read 30 Sep 2026 · justinmind.com
Plugin ownership
The API page says developers own their plugins and may use or resell them freely.Read 15 Oct 2026 · justinmind.com
Praise: ease of use
G2 reviewers repeatedly describe Justinmind as intuitive, easy to navigate and approachable for beginners and experienced designers.Read 15 Oct 2026 · g2.com
Praise: prototyping fidelity
GetApp reviewers praise accurate micro-interactions, device previews, clean setup and collaboration.Read 15 Oct 2026 · getapp.com
Praise: sharing and mobile flows
Gartner reviewers repeatedly like creating links and transitions and showing mobile-app context to collaborators.Read 15 Oct 2026 · gartner.com
Rating on Apple App Store
3.3 out of 5 from 15 ratingsRead 15 Oct 2026 · apps.apple.com
Rating on G2
4.0 out of 5 from 55 reviewsRead 15 Oct 2026 · g2.com
Rating on Gartner Peer Insights
4.2 out of 5 from 6 reviewsRead 15 Oct 2026 · gartner.com
Rating on GetApp
4.4 out of 5 from 30 reviewsRead 15 Oct 2026 · getapp.com
Rating on Google Play
3.2 out of 5 from 622 reviewsRead 15 Oct 2026 · play.google.com
Rating on TrustRadius
8.2 out of 10 from 12 reviewsRead 15 Oct 2026 · trustradius.com
Requirements
Requirements can be linked to screens and elements, versioned and synchronized with agile requirements tools.Read 15 Oct 2026 · justinmind.com
SDK platforms
Justinmind publishes SDK downloads for Windows and macOS Intel and Apple Silicon.Read 15 Oct 2026 · justinmind.com
Security and privacy
Justinmind's privacy policy says it takes reasonable measures to protect personal data and will notify materially affected users of a breach within 72 hours.Read 30 Sep 2026 · justinmind.com
Security measures
The privacy policy describes safeguards against loss, misuse and unauthorized access, 72-hour breach notification and GDPR-oriented processor contracts.Read 15 Oct 2026 · justinmind.com
Support channels
email, ticket, community, docsRead 21 Sep 2026 · justinmind.com
System requirements
A published Windows requirement page lists a 1 GHz CPU, 512 MB RAM minimum, 200 MB disk space and Windows 8.1/10/11 64-bit support.Read 15 Oct 2026 · justinmind.com
Testing
Prototypes can be tested in browsers with device skins and on real iPhone, iPad and Android devices through a viewer app.Read 15 Oct 2026 · justinmind.com
UI design
Its visual tools include vector editing, a pen tool, path operations, responsive layouts and reusable UI components.Read 15 Oct 2026 · justinmind.com
UI libraries
Justinmind provides more than 4,000 UI components and lets teams create, synchronize and reuse their own libraries and design systems.Read 15 Oct 2026 · justinmind.com

Plans and prices

Free Free $0 per editor/month; $0 per editor UI design and wireframing · interactive input forms · vector and pen tools · PNG/JPG/SVG export · slices · unlimited screens · 1 project Read 15 Oct 2026 · justinmind.com
Standard $19 a month per editor/month Advanced interactions and forms · collaboration and team management · mobile testing · variables · shared UI libraries · unlimited projects Read 15 Oct 2026 · justinmind.com
Professional $29 a month per editor/month Masters · smart templates · data simulation · user flows · HTML export · user-testing integration · custom branding Read 15 Oct 2026 · justinmind.com
Enterprise $59 a month per editor/month; enterprise quote available SAML single sign-on · shared fonts · document export · requirements management · Jira/Azure DevOps integration · priority support · internal-server collaboration Read 15 Oct 2026 · justinmind.com
Standard $295, paid once $295 per editor Unlimited projects · advanced interaction design · advanced collaboration · mobile device testing · shared UI libraries Read 30 Sep 2026 · justinmind.com
Standard perpetual $295, paid once per editor Standard feature set with a one-time per-editor license Read 15 Oct 2026 · justinmind.com
Professional $455, paid once $455 per editor Unlimited projects · data simulation · user flows · HTML export · user testing integration · custom branding Read 30 Sep 2026 · justinmind.com
Professional perpetual $455, paid once per editor Professional feature set with a one-time per-editor license Read 15 Oct 2026 · justinmind.com

Every Justinmind plan and price →

Strong points and limits

Strong points

  • Build interactions and conditions without code.
  • Simulate forms, data lists and grids.
  • Multiple users can edit prototypes simultaneously.
  • Export prototypes as interactive HTML.
  • Integrates with Figma, Adobe XD and Sketch.

Limits

  • Free plan is limited to one project.
  • Standard costs $19 per editor/month.
  • A 10-day trial is listed.

Who it suits

Justinmind suits design teams, business analysts and developers who need to prototype web or mobile interfaces and share UI assets for handoff. The free plan may suit a single-project workflow; larger project needs require a paid plan.

Justinmind in depth

Read the full write-up

Overview

Justinmind is an interaction design and prototyping tool for web and mobile apps. It is best suited to design teams, business analysts and developers who need to demonstrate interface behavior and carry reusable UI assets into handoff. Its breadth is useful, but the one-project free tier and per-editor paid pricing make project volume and team size central to the buying decision.

Key features

Justinmind goes beyond screen layouts: users can build web interactions, mobile gestures, action sequences and conditions without code. That makes it a better fit for explaining how a proposed interface behaves than a wireframing tool limited to static layouts. Interactive forms, data lists and grids add useful detail for product flows that depend on user input or structured content.

Multiple users can edit a prototype simultaneously, while version control tracks changes. UI kits, shared and synchronized components, templates and masters give teams a way to maintain consistency across projects. These capabilities are most valuable when several people contribute to a shared design system; a smaller team working on isolated mockups may not need them.

Prototypes can be exported as interactive HTML, with assets exported as SVG or PNG, and the API can generate specification assets. Alongside prototype sharing and developer handoff, these options support moving design work toward implementation. Integrations include Figma, Adobe XD, Sketch, JIRA, Azure DevOps and user-testing tools.

Pricing

Justinmind uses a freemium model. The Free plan costs $0 per editor/month and includes one project, unlimited screens and viewers, UI design and wireframing, interactive input forms, vector design, and PNG, JPG and SVG export. It is a credible way to explore the workflow or keep a single project moving, but the project cap makes it unsuitable for a portfolio of concurrent work.

Standard — $19 per editor/month. Unlimited projects, advanced interaction design and collaboration, mobile device testing, and shared UI libraries make this the entry paid option for teams that need multiple active projects and shared assets. It does not include the Professional plan’s data simulation, user flows, HTML export, user-testing integration or custom branding.

Professional — $29 per editor/month. This adds data simulation, user flows, HTML export, user-testing integration and custom branding to unlimited projects. It is the more relevant tier for teams presenting data-driven prototypes or needing an HTML deliverable and testing integration.

Enterprise — $59 per editor/month. SAML single sign-on, shared fonts, document export, requirements management, JIRA and Azure DevOps integration, and priority support target organizations with governance and handoff needs. The per-editor charge remains important as the number of paid collaborators grows.

A 10-day trial is offered. The pricing note gives paid plans a starting price of $19/mo; the plan prices above are stated per editor/month.

Platforms

Justinmind supports Android, iOS, macOS, Windows, web, API and self-hosted environments. Deployment options include cloud, self-hosted, desktop and mobile, and a desktop app is available. This range can suit teams working across devices and deployment models, though the platform list alone does not establish that every feature works identically in each environment.

Who it's for

Design teams that need interactive prototypes, reusable UI assets and real-time collaboration are the clearest fit. Business analysts can use simulations to convey proposed behavior, while developers can receive shared prototypes and handoff materials. Small, mid-market and enterprise organizations are all within the stated company-size fit, but the per-editor plans and Enterprise-specific controls make the appropriate tier depend on team scale and governance needs.

Support channels include email, ticket, community and documentation; Enterprise adds priority support. Justinmind states that it serves customers in more than 180 countries and that its team works across Europe and the Americas. Its privacy policy says it takes reasonable measures to protect personal data and will notify materially affected users of a breach within 72 hours. It also says credit card information is not collected by Justinmind and payment data goes directly to Braintree. GDPR and PCI DSS are listed as compliance areas.

Pros and cons

Pro: Interaction design, forms and data simulation support prototypes that communicate behavior, not just appearance.

Pro: Live editing, version tracking and reusable UI assets address coordination and consistency across a team.

Pro: HTML and image exports, an API for specification assets, and handoff integrations provide several routes from design toward development.

Con: The free plan is limited to one project, so it quickly constrains users managing multiple concepts or client work.

Con: Paid pricing is per editor/month, which can make wider collaboration a more consequential budget decision than the entry price suggests.

Con: HTML export and data simulation start at Professional, so teams needing those capabilities must move beyond the $19 Standard tier.

Alternatives

For a broader comparison of prototyping software, wireframing software, web design software, developer handoff software, UI design tools and game UI design software, use the relevant category directories.

Fluid UI is another freemium option with a free plan and support for Android, iOS, Linux, macOS, web and Windows; consider it when that platform mix is a priority. Mockplus also has a free plan and supports Android, iOS, macOS, web and Windows, with its Basic tier allowing 10 users and 10 active projects; that cap is more generous than Justinmind Free for teams needing several projects.

Quickmock is a free, open-source option with broad platform support, including self-hosted and API. Frame0 offers a free tier with no time or size limit and built-in shapes and icons, and may suit teams whose work is focused on wireframes. MockFlow has a free Basic tier for one editor and five reviewers, a fit to consider when reviewer access matters. Mokkup.ai has a web-only free plan limited to one editable project and three screens per project. Pencil Project is a completely free desktop app for Linux, macOS and Windows. WireframeSketcher is a paid desktop option for Linux, macOS and Windows, with a trial and a perpetual single-user license priced at $99 a month.

Verdict

Choose Justinmind if your team needs interactive web and mobile prototypes, shared design assets and a route into developer handoff in one tool. Its strongest case is the combination of behavior-rich prototyping and collaboration; look elsewhere if a one-project free tier is too restrictive or per-editor costs outweigh the value of those team capabilities.

Verdict

Justinmind combines interactive prototyping, collaboration and reusable design assets, with exports and integrations relevant to design handoff. Check the project limit and per-editor plan pricing against the size of your team and work.

Where Specifiction places it

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