Alternatives to ForeUI 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 Windows Linux PortableApps.com Electron / Atom Shell ... Firefox
Cliparts Drawing Firefox Extensions Prototyping ... Wireframing Add a feature

349 Like
Lucidchart

Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.

Freemium $ $ $ Web Android iPhone Chrome OS Microsoft Office Word ... Google Drive Google Drive - Docs Google Apps Google Drive - Sheets Microsoft Office Suite
Real time collaboration Team Collaboration Charts General-purpose diagramming ... Prototyping Real time collaboration Export to PDF Sequence Diagrams UML diagrams Visitor management Web-Based Wireframing Add a feature

495 Like
Balsamiq Wireframes

Balsamiq Wireframes is a rapid low-fidelity UI wireframing tool that reproduces the experience of sketching on a notepad or whiteboard, but using a computer. FEATURES...

Freemium $ $ $ Mac Windows Web
Drawing Real time collaboration Wireframing Add a feature

107 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
Prototyping Anonymous Commenting Built-in Commenting System Add a feature

22 Like
Axure RP

The most powerful way to plan, prototype, and hand off to developers, all without code.

Commercial $ $ $ Mac Windows Sketch
Prototyping Add a feature

36 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 Open Source apps Web-Based Add a feature

17 Like
Flinto

Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to comprehensive prototypes with impressive...

Commercial $ $ $ Mac iPhone
Prototyping Add a feature

7 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 Wireframing Add a feature

18 Like
Wired Designer

Wired Designer is a mockup tool built using web components from the Wired Elements library. It's made by the author of Rough.js...

Free Open Source Web Self-Hosted
Prototyping Add a feature

3 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 Self-Hosted
Prototyping Add a feature

12 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 Windows Linux Web
Prototyping Team Collaboration User interface UX Design ... Wireframing Add a feature

28 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
Prototyping Simulation UX Design Add a feature

10 Like
Composite

Automatically connects to your Photoshop document and converts your mockups into interactive prototypes using layer comps to organize your documents into screens....

Commercial $ $ $ iPhone iPad
Prototyping Add a feature

3 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 Windows Linux Eclipse
Portable Add a feature

10 Like
Moqups

A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.

Freemium Web
Drawing Html5 Prototyping Real time collaboration ... SVG Editors Add a feature

72 Like