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. The Pencil... Free Open Source Mac OS X Windows Linux PortableApps.com Electron / Atom Shell ... Firefox Cliparts Firefox extension Wireframing Add a feature 318 Like
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 is much cleaner. Teams can come up... Commercial $ $ $ Mac Windows Web Real time collaboration Add a feature 95 Like
InVision InVision's prototype tool lets you create interactive wireframes and high-fidelity prototypes. Share your work and get instant feedback right on-screen. Freemium Web Import from Sketch Basecamp integration GitHub integration Group chat ... Jira integration Kanban boards Support for @mentions Real time collaboration Slack integration Trello integration Add a feature 52 Like
Marvel Marvel is a free prototyping tool that transforms static design files (like Photoshop files, PNG etc) and sketches into interactive, sharable prototypes that look and... Freemium Web Android iPhone Apple Watch tvOS Anonymous Commenting Built-in Commenting System Add a feature 16 Like
Origami Studio 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... Free Mac OS X Android iPhone No features added Add a feature 10 Like
Concept.ly Free web and mobile mockup tool. Transform your design and mockups into clickable interactive applications. Perfect way to validate ideas faster with lean startup... Freemium Web Real time collaboration Add a feature 35 Like Concept.ly does not allow you to draw the UI. You need another tool for that, load an image. On that image you can add regions you can define behaviour. So it is more screen flow PROVIDING you already have the screens Guest • Jun 2016 Disagree Agree
MockFlow Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a clickable prototype. Our... Freemium Web Real time collaboration Add a feature 17 Like
Atomic 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... Freemium Web No features added Add a feature 7 Like
Moqups "The most stunning HTML5 App for creating high fidelity, resolution independent SVG mockups and wireframes!" The Free Plan includes 2 projects (limited to... Freemium Web Real time collaboration SVG Support Add a feature 70 Like
STUDIO Build your idea into a product. Design and programming skills are no longer necessary to create a product. With STUDIO, you can make your idea into a real product... Freemium Web No features added Add a feature 3 Like
mockingbird 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 No features added Add a feature 20 Like
ProjectHuddle Use your existing WordPress site to get feedback on your design projects. Upload your design images, wireframes, mockups, logo sketches, photography and more. Gather... Commercial Self-Hosted Wordpress Customizable Real time collaboration Add a feature 8 Like
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 device with ease. Simple and UX... Freemium Web Real time collaboration Flow diagram visualisation Live Preview Export to PDF Add a feature 15 Like
Prototype Composer 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 Wireframing Add a feature 4 Like
SwordSoft Layout 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 No features added Add a feature 4 Like
