Alternatives to Indigo Studio for all platforms with any license

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

321 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

97 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
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
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

71 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
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
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
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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

16 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