Web
- Mockingbird – Wireframes on the fly
- Simulify – Interactive, shareable wireframes, mockups and prototypes
- Solidify – Create clickable prototypes
- Concept.ly – Convert wireframes and designs into interactive apps.
- ClickDummy – Turn mockups into clickable prototypes
- Creately – Real time diagram collaboration
- Lumzy – Mockup creation and prototyping tool
- Cacoo – Diagrams with real time collaboration
- Mockflow – Great design tools and collaboration services for designers
- Mockup Designer – Basic wireframing tool hosted on GitHub
- dub –Denim – DENIM is an outgrowth of the original SILK project, a pen-based sketching tool for designing user interfaces.
- fluidIA – A free open source project for prototyping open source projects.
- Justinmind – Nice wireframing platform for web and mobile apps.
- UXPin – It puts everything to your fingertips but is a costly tool.
- RWD Wireframes – Wireframing tool for responsive layouts
- Gliffy – Drag & Drop from library to anywhere on page, creating wireframes easily.
- Wireframe.cc – Free tool for creating quick mockups.
- Pencil Project – This is a free and easy to use open source tool for creating GUI prototyping.
- Wirify – Converting web page to wireframe is just a click away with wirify.
- Axure RP – Premium wireframe tool for detailed wireframe creation.
- PowerMockup – Convert power point to wireframe.
- JustProto – Premium tool with drag and drop feature to create highly interactive prototypes.
- FlairBuilder – Premium tool for easy creation interactive wireframes.
- WireframeSketcher – Instantly creates wireframes, mockups and prototypes for desktop, web and mobile applications.
- Serena Prototype Composer – Build simple, high fidelity prototypes that look like the real thing.
- Balasmiq – You can come up with a design and iterate over it in real-time in the course of a meeting.
Android
- Framer – Modern prototyping tool
- Indigo Studio – Rapid, interactive prototyping
- Lucidchart – Simplest and most powerful flowchart software in the world.
- Frame Box – Easy, simple wireframing
- Mockups.me – Create and present interactive UI wireframes
- Grafio – Grafio is a custom modifiable app.
iOS
- LovelyCharts – Diagramming app with desktop and mobile versions
- Tiggzi – The only cloud-based platform with visual development tools and integrated backend services
- Realizer – Interactive presentation prototypes
- iPhone Mockup – Free basic iphone Mockup tool.
- iMockups for iPad – Premium wireframing and mockup app.
- Antetype – Wireframing and prototyping desktop application for Mac.
- iMock – Good app for creating mockups, more features could be added.
- JumpChart – Architecture, layout and content planning
- Mockup Builder – Super-easy prototyping and mockups
- Live Wires – wireframe & prototype your iPhone and iPad app concepts quickly.
- AppCooker – AppCooker is a good tool to bring iOS applications to life.
- UI Sketcher for iPad – Sketch, refine and share user interface ideas rapidly.
- Mockabilly – iPhone mockups with genuine iphone behavior
- Blocks – Create annotated HTML prototypes
- UX Toolbox – Create, document and share wireframes and prototypes
- Moqups – A free tool for making high resolution SVG mockups and wireframes.
- ProtoShare – Good tool for website wireframing.
- JustinMindPrototyper – Fantastic prototypes for web and mobile apps.
- Pidoco – Quick premium prototyping for web apps, mobile and enterprise apps.
- OmniGraffle for Mac – Creates excellent graphic documents.
- HotGloo – Easy and beautiful way to create mockups.
- Sketchypad – Easy-to-use interface for creating websites and soft interfaces.