Free Proto.io AlternativesWireframing & Prototyping Tools like Proto.io

The best free alternative to Proto.io is Napkins.dev, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Proto.io and 19 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Proto.io are Frame0, Wireflow, InVision and Presentator.io.

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Proto.io alternatives are mainly Prototyping Tools but may also be Wireframing Tools or UI Design Tools.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Proto.io.
Proto.io iconProto.io
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Create fully-interactive high-fidelity prototypes that look and work exactly like your app should. No coding required. Companies like IDEO, Disney, Paypal, Airbnb and more use Proto.io.

More about Proto.io
Proto.io alternatives page was last updated Oct 4, 2024
  1. Napkins.dev icon
     14 likes

    An open source wireframe to app tool powered by Llama 3.2 vision. Upload a screenshot of a simple site/design & get code.

    48 Napkins.dev alternatives
    Napkins.dev screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Online

    Napkins.dev Features

    1.  Design handoff
    2.  No Coding Required
    3.  UX Design
    4.  React
    Napkins.dev iconProto.io Icon

    Napkins.dev VS Proto.io

    Is Napkins.dev a good alternative to Proto.io?
     
    • Napkins.dev is the most popular Web-based alternative to Proto.io.

    • Napkins.dev is the most popular Open Source & free alternative to Proto.io.

    • Napkins.dev is Free and Open SourceProto.io is Paid and Proprietary
  2. Frame0 icon
     8 likes

    Sketch your app ideas without stress Make hand-drawn style wireframes quickly and easily.

    53 Frame0 alternatives
    Frame0 screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Mac
    • Windows
    • Linux

    Frame0 Features

    1.  Works Offline
    2.  Ad-free
    3.  Create UI Components
    4.  No registration required
    5.  No Tracking
    6.  Website wireframing
    7.  Sketching
    Frame0 iconProto.io Icon

    Frame0 VS Proto.io

    Is Frame0 a good alternative to Proto.io?
     
    • Frame0 is the most popular Windows, Mac & Linux alternative to Proto.io.

    • Frame0 is Free and ProprietaryProto.io is Paid and Proprietary
  3. Wireflow icon
     19 likes

    Feature-rich, open-source Wireflow offers a collaborative platform for online creation of complex user flow prototypes. Ideal for team work in UI design, wireframing, and mind mapping, promoting idea sharing in real-time environment aided by modern whiteboard features.

    119 Wireflow alternatives
    Wireflow screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Online
    • Self-Hosted

    Wireflow Features

    1.  Real time collaboration
    2.  Kanban Board
    3.  Flow Chart
    4.  Shared whiteboard
    Wireflow iconProto.io Icon

    Wireflow VS Proto.io

    Is Wireflow a good alternative to Proto.io?
     
    • Wireflow is the most popular Self-Hosted alternative to Proto.io.

    • Wireflow is Free and Open SourceProto.io is Paid and Proprietary
  4. InVision icon
     68 likes

    We believe the screen is the most important place in the world. That’s why we are dedicated to helping you deliver the best possible digital product experience, with our platform and best practices from your peers.

    94 InVision alternatives
    InVision screenshot 1

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad

    InVision Features

    Features

    1.  Real time collaboration
    2.  Kanban Board
    3.  Support for @mentions
    4.  Design handoff
    5. Sketch icon  Import from Sketch
    6. GitHub icon  GitHub Integration
    7. Trello icon  Trello integration
    8. Slack icon  Slack integration
    9. Basecamp icon  Basecamp integration
    10. JIRA icon  Jira integration
    Discontinued

    InVision announced the closure of its UX/UI design collaboration services by the end of 2024.

    InVision iconProto.io Icon

    InVision VS Proto.io

    Is InVision a good alternative to Proto.io?
     
    • InVision is the most popular Android, iPhone, iPad & Android Tablet alternative to Proto.io.

    • InVision is Freemium and ProprietaryProto.io is Paid and Proprietary
  5. Presentator.io icon
     8 likes

    Presentator is a free web application that allows you to present your designs in an easy, organized and interactive way.

    13 Presentator.io alternatives
    Presentator.io screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)

    Properties

    1.  Lightweight

    Features

    1.  Design handoff
    2.  Real time collaboration
    3.  UX Design
    Presentator.io iconProto.io Icon

    Presentator.io VS Proto.io

    Is Presentator.io a good alternative to Proto.io?
     
    • Presentator.io is the most popular SaaS alternative to Proto.io.

    • Presentator.io is Free and Open SourceProto.io is Paid and Proprietary
    • Presentator.io is LightweightProto.io is not according to our users
  6. Marvel icon
     27 likes

    The collaborative design platform. Wireframe, prototype, design online and create design specs in one place. Or create an integration with our API.

    87 Marvel alternatives
    Marvel screenshot 1

    License model

    • FreemiumProprietary

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Apple TV
    • Apple Messages
    • Software as a Service (SaaS)

    Marvel Features

    1.  Anonymous Commenting
    2.  Built-in Commenting System
    Marvel iconProto.io Icon

    Marvel VS Proto.io

    Is Marvel a good alternative to Proto.io?
     
    Comments about Marvel as an Alternative to Proto.io
     
    Guest

    It´s easy and fun to use, although I still rather proto.io

    Positive commentOct 4, 2019
    1
    Proto.io Icon
    Marvel icon
    • Marvel is Freemium and ProprietaryProto.io is Paid and Proprietary
  7. mydraft.cc icon
     7 likes

    Open source wireframing tool written in typescript, react and redux.

    67 mydraft.cc alternatives
    ui

    License model

    • FreeOpen Source

    Platforms

    • Linux
    • Online
    • Self-Hosted

    mydraft.cc Features

    1.  Flow Chart
    mydraft.cc iconProto.io Icon

    mydraft.cc VS Proto.io

    Is mydraft.cc a good alternative to Proto.io?
     
  8. Studio.Design icon
     9 likes

    Studio.Design is the site builder for designers. The browser app is packed with design features as intuitive as Figma, a CMS as simple as Notion, and one-click publishing to your domain. Now, you can finally turn any idea into a stunning website quickly and easily.

    78 Studio.Design alternatives
    Studio.Design screenshot 1

    License model

    • FreemiumProprietary

    Platforms

    • Online

    Properties

    1.  Lightweight
    2.  Support for Themes

    Features

    1.  Real time collaboration
    2.  Live Preview
    3.  WYSIWYG Support
    4.  WYSIWYG HTML Editor
    5.  No Coding Required
    6.  Custom types builder
    Studio.Design iconProto.io Icon

    Studio.Design VS Proto.io

    Is Studio.Design a good alternative to Proto.io?
     
  9. NinjaMock icon
     8 likes

    NinjaMock is the faster, better and funnier way of making mockups.

    18 NinjaMock alternatives
    NinjaMock screenshot 1

    License model

    • FreemiumProprietary

    Platforms

    • Mac
    • Windows
    • Online

    NinjaMock Features

    1.  UX Design
    2.  Usability Testing
    3.  Website wireframing
    NinjaMock iconProto.io Icon

    NinjaMock VS Proto.io

    Is NinjaMock a good alternative to Proto.io?
     
  10. Atomic icon
     7 likes

    Work your way up from a blank canvas, or pull in designs from Photoshop or Sketch. Lay out your states and instantly animate between them, without coding a thing. Share your prototypes with anyone or view on any device via a humble...

    38 Atomic alternatives
    Atomic screenshot 1

    License model

    • FreemiumProprietary

    Platforms

    • Online

    Atomic Features

    1.  Interactive content
    2.  Interaction
    Discontinued

    Atomic announced the end of their prototyping tool and a new direction for Atomic

    Atomic iconProto.io Icon

    Atomic VS Proto.io

    Is Atomic a good alternative to Proto.io?
     
  11. Savahapp icon
     9 likes

    SavahApp is a collaborative platform that streamlines feedback right to your design screen that allows designers to create high-fidelity prototypes for web and mobile apps without writing a single line of code.

    14 Savahapp alternatives
    SavahApp Landing Page

    License model

    • FreemiumProprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Chrome OS
    Savahapp iconProto.io Icon

    Savahapp VS Proto.io

    Is Savahapp a good alternative to Proto.io?
     
  12. Specfox icon
     3 likes

    Specfox is the first tool to address the tedious process of writing website specifications, which is often frustrating and time-consuming. You shouldn't be spending hours trying to explain developers design features and creating ugly descriptions in software which was not...

    26 Specfox alternatives
    Specfox screenshot 1

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Specfox iconProto.io Icon

    Specfox VS Proto.io

    Is Specfox a good alternative to Proto.io?
     
12 of 19 Proto.io alternatives