Alternatives to Pencil Project for all platforms with any license

  • Dia icon

    Dia

    Dia is a GTK+ based diagram creation program for Linux, Unix, Mac OS X and Windows released under the GPL license. Dia is roughly...

    Open Source Mac Windows Linux Xfce

  • yEd Graph Editor icon

    yEd Graph Editor

    yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and...

    Free Mac Windows Linux Web / Cloud

  • Lucidchart icon

    Lucidchart

    Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.

    Commercial Mac Windows Linux Web / Cloud iPad Chrome ... Google Apps

  • Microsoft Office Visio icon

    Microsoft Office Visio

    Microsoft Office Visio makes it easy for IT and business professionals to visualize, explore, and communicate complex information. Go...

    Commercial Windows Windows RT

  • OmniGraffle icon

    OmniGraffle

    OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to...

    Commercial Mac iPad

  • Apache OpenOffice Draw icon

    Apache OpenOffice Draw

    Draw - part of the Apache OpenOffice suite - is a graphics editor that gives you the tools to communicate with visuals and diagrams....

    Open Source Mac Windows Linux

  • Balsamiq Mockups icon

    Balsamiq Mockups

    Using Balsamiq Mockups feels like you are drawing, but its digital, so you can tweak and rearrange controls easily, and the end result...

    Commercial Mac Windows Web / Cloud

  • Concept.ly icon

    Concept.ly

    Free Web & Mobile Mockup tool. Transform your Design and Mockups into clickable interactive applications. Perfect way to...

    Freemium Web / Cloud

  • Axure RP icon

    Axure RP

    Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.

    Commercial Mac Windows

  • Gliffy icon

    Gliffy

    "If they could see what Im thinking, theyd get it!" People just understand faster with pictures. It helps them see how...

    Freemium Web / Cloud Chrome OS

  • UXPin icon

    UXPin

    UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you...

    Commercial Mac Windows Linux Web / Cloud

  • SmartDraw icon

    SmartDraw

    Instead of starting with a blank screen, SmartDraw gives you the exact template you need. Then use simple commands to add your...

    Commercial Windows

  • mockingbird icon

    mockingbird

    mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or...

    Commercial Web / Cloud

  • Edraw Max icon

    Edraw Max

    Creating flowcharts, organizational charts, business diagrams, science illustration, network diagrams, mind map and lots more. Free...

    Commercial Windows

  • Storyboard That icon

    Storyboard That

    Storyboard That is the world's best online storyboard creator. Everyday people from all over the world use Storyboard That to...

    Freemium Mac Windows Linux Web / Cloud Android iPad

  • Fluid UI icon

    Fluid UI

    Fluid UI is the fastest mobile app prototyping tool available. Design and test your low and high fidelity app mockups on a mobile...

    Freemium Web / Cloud

  • Diagram Designer icon

    Diagram Designer

    Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.

    Free Windows

  • Lovely Charts icon

    Lovely Charts

    Browser based Chart and Diagram tool. Requires sign up. Free account allows one diagram to be saved. Very easy to use...

    Freemium Mac Windows Linux Web / Cloud iPad

  • Scapple icon

    Scapple

    Scapple is an easy-to-use tool for getting ideas down as quickly as possible and making connections between them. It isn’t exactly...

    Commercial Mac Windows

  • Mockup Designer

    Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local...

    Open Source Web / Cloud

  • Diagramo icon

    Diagramo

    Online diagram software | Online diagram tool | Online diagram editor - diagrams (create, edit and share) - organization charts...

    Open Source Web / Cloud

  • MockFlow icon

    MockFlow

    Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a...

    Freemium Web / Cloud

  • ConceptDraw PRO icon

    ConceptDraw PRO

    The fastest tool for drawing business vector graphics, diagrams and flowcharts. Supports MS Visio, MS Office and many other formats.

    Commercial Mac Windows

  • Moqups icon

    Moqups

    "The most stunning HTML5 App for creating high fidelity, resolution independent SVG mockups and wireframes!" The Free...

    Freemium Web / Cloud

  • Iplotz icon

    Iplotz

    Wireframe your Ideas iPlotz allows you to rapidly create clickable, navigable mockups and wireframes for prototyping websites and...

    Freemium Web / Cloud

  • ProcessOn icon

    ProcessOn

    Free html-5 based on-line diagrams design, an ideal tool for visual communication

    Free Mac Windows Linux Web / Cloud Chrome OS

  • Flairbuilder icon

    Flairbuilder

    FlairBuilder is a user interface prototyping tool for easy authoring of interactive website wireframes, mockups and GUI prototypes.

    Commercial Mac Windows Linux

  • VisiTouch icon

    VisiTouch

    ~ Simple way to view, annotate and share Microsoft Office Visio diagrams ~ VisiTouch helps mobile workers to view and annotate on MS...

    Commercial iPhone iPad

  • Justinmind Prototyper icon

    Justinmind Prototyper

    A functional wireframe is the best way to reduce costs of your software projects. Simulate your wireframes and mitigate risks.

    Commercial Mac Windows

  • Indigo Studio icon

    Indigo Studio

    The newest design tool from the leaders in UX, Indigo Studio lets you quickly and simply explore and create functional, animated UI...

    Commercial Mac Windows

  • ProcessMaker icon

    ProcessMaker

    ProcessMaker is a cost effective and easy to use open source business process management (BPM) or workflow software application.

    Freemium Web / Cloud Android iPhone Android Tablet iPad

  • HotGloo icon

    HotGloo

    Web-based HotGloo is a rich internet application designed to build functional online wireframes for a website or web projects. HotGloo...

    Commercial Mac Windows Linux Web / Cloud

  • Mockup Builder icon

    Mockup Builder

    Design your software or website mockups within minutes. Mockup Builder is a new look to solve old problem with prototyping and sharing...

    Freemium Web / Cloud

  • Mockplus icon

    Mockplus

    Mockplus is a desktop-based prototyping tool. It can be used to create wireframes/mockups/prototypes for any mobile and web apps with...

    Freemium Mac Windows

  • Pidoco icon

    Pidoco

    Quickly create, share and simulate professional interactive wireframes, mock-ups and UI prototypes online without programming.

    Commercial Mac Windows Linux Web / Cloud