Pencil Project
Pencil is a standalone app or Firefox extension that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly...
origami studio is a free design tool built by facebook designers for creating interactive ui prototypes. an elegant, layerbased interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.
features
layerbased editing that lets you import layers from sketch . intuitive patchbased design for creating interactions, animations and behaviors. save time by using a library of prebuilt components that you can add to. preview designs live via origami live, the accompanying mobile apps for android and ios. capture and export video recordings directly from the app.
prototyping interface-design design
Pencil is a standalone app or Firefox extension that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Free Open Source Mac OS X Windows Linux Firefox Electron / Atom Shell
Using Balsamiq Mockups feels like you are drawing, but its digital, so you can tweak and rearrange controls easily, and the end result is much cleaner.
Commercial Mac OS X Windows Web
Free web and mobile mockup tool. Transform your design and mockups into clickable interactive applications. Perfect way to validate ideas faster with lean startup thinking. Best tool for quick prototyping.
Freemium Web
mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application. It is not Flash based.
Commercial Web
"Go from idea to prototype faster with Experience Design CC (Beta), the first all-in-one cross-platform tool for designing and prototyping websites and mobile apps....
Commercial Mac OS X Windows
Use your existing WordPress site to get feedback on your design projects. Upload your design images, wireframes, mockups, logo sketches, photography and more. Gather comments directly on top of your designs.
Commercial Self-Hosted Wordpress
ProtoShare is a web-based, collaborative wireframing and prototyping tool. It hosts a WYSIWYG drag-and-drop interface, as well as advanced components users can...
Commercial Web
SwordSoft Layout is an desktop application that makes it very easy for you to create, preview, and manage mockups of your website, mobile application or desktop...
Commercial Mac OS X Windows
Serena Prototype Composer - the best agile application prototyping tool is now free! View the demo, take the product tour, or download it free today.
Freemium Windows