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 317 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 OS X 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 53 Like
Axure RP Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites. Commercial Mac OS X Windows No features added Add a feature 32 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
Diagramo Diagramo is an online flowchart software - diagrams (create, edit and share) - organization charts (create, edit and share) - network diagrams (create, edit and... Free Open Source Web Export to PNG Add a feature 15 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 34 Like
UXPin UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you upload image files, invite teammates... Commercial Mac OS X Windows Linux Web Wireframing Add a feature 27 Like
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
Mockup Designer Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local storage of your browser as its... Free Open Source Web No features added Add a feature 10 Like
Justinmind Justinmind is the best solution to prototype any web or mobile app you can think of. You can define websites and apps for Web, iOS, and Android with our intuitive... Commercial $ $ $ Mac Windows No features added Add a feature 10 Like
WireframeSketcher WireframeSketcher is a software tool that helps quickly create wireframes, mockups and prototypes for desktop, web and mobile applications. It comes both as a plug-in... Commercial Mac OS X Windows Linux Eclipse Portable Add a feature 10 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
