The 51 best Fluid UI alternatives

Below, we’ll look at the 51 best Fluid UI alternatives.

To make it easier, we’ve grouped these alternatives into 12 categories with the most popular first:

Although there are some similarities in features between these, depending on your situation, you might find one is more suitable to your needs.


Prototyping for UI Designers

1. Moqups

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2. Figma

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3. UXPin

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4. Sketch

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5. Miro

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6. MockFlow

Online whiteboard for brainstorming user interfaces with your team

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7. Proto.io

Build interactive web, iOS, Android, and other low or high-fidelity prototypes right into your web browser. Drag and drop ready-to-use, easily customizable templates, UI components, icons, and more, to prototype in minutes! No coding skills required.

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8. LucidChart

Lucidchart is the intelligent diagramming application that brings teams together to make better decisions and build the future.

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9. Adobe XD

Adobe XD is a vector-based user experience design tool for web apps and mobile apps, developed and published by Adobe Inc.

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10. Balsamiq

Balsamiq is the company behind Balsamiq Wireframes, the industry standard low-fidelity wireframing tool.

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11. Webflow

Build your site for free and take as long as you need.

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12. LucidSpark

The virtual whiteboard that connects teams so they can bring their best ideas to life

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13. ProtoPie

Build better products with our realistic & no-code prototyping tool. Ideal for all designers, UX researchers, and developers.

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14. JustInMind

Easily create web and mobile app prototypes and wireframes with Justinmind UI prototyping tool.

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15. HotGloo

HotGloo is a UX, wireframe and prototyping tool designed to build wireframes for web, mobile and wearables.

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16. Mockplus

The all-in-one product design platform for prototyping, collaboration, and creating design systems. Mockplus helps you create better design experience faster and easier

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17. Axure RP

The most powerful way to plan, prototype and handoff to developers, all without code. Download a free trial and see why UX professionals choose Axure RP.

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18. Flinto

Flinto is a powerful design tool that helps you create interactive prototypes for mobile, desktop, and web apps.

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19. Mockingbird

GoMockingbird is an online tool that helps you quickly create interactive wireframes and prototypes for websites and mobile apps. It's easy to use and lets you collaborate with others in real-time.

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20. Mockup.io

Mockup.io is an online platform that helps you create stunning visuals for websites, apps, and more. It's easy to use and provides a library of templates, icons, and illustrations to help you create beautiful designs quickly.

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21. Mockup Builder

MockupBuilder is an online design tool that helps you create stunning visuals for websites, apps, and more. It's easy to use and offers a wide range of features to help you create professional-looking designs quickly and easily.

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22. Mockup Machine

Use Mockup Machine services to design online mockups, wireframes, UX/UI mockups, software mockups, and prototypes.

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23. UXtweak

Conduct qualitative UX study as your users complete specific tasks, directly on your live web. Try it for free now!

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Usability Testing for UI Designers

24. UsabilityHub

UsabilityHub’s user testing platform and research panel help you improve the UX of your apps and websites. Get feedback from real people. Sign up for free.

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25. UserZoom

UX research, done right. With UserZoom's UX Insights System you can dig deeper, faster to deliver superior digital experiences throughout the product development lifecycle.

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User Experience Design for UI Designers

26. Creately

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27. Designer.io

Designer.io is a powerful design platform that helps teams create beautiful, high-quality designs quickly and easily. It offers a wide range of features, including drag-and-drop design, collaboration tools, and a library of templates and assets.

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User Interface Design for UI Designers

28. Typekit.com

Typekit is a subscription-based font library that provides access to thousands of high-quality fonts for use on websites, apps, and other digital projects.

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Prototyping for UX Designers

29. Canva

Canva makes it easy to create professional designs and to share or print them.

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30. Marvel App

The collaborative design platform. Wireframe, prototype, user test, design and inspect designs in one place, for free.

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Usability Testing for UX Designers

31. Optimizely

Creating digital experiences that transform your company takes data-driven decisions, continued experimentation and constant invention.

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32. Userlytics

Leverage our state-of-the-art user research platform and global panel of more than 1.6 million to improve your customer and user experience.

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33. UserTesting

Whether you're focused on UI, UX Research, Design, or CX, with the UserTesting Platform you can get customer feedback to improve digital experiences and drive innovation

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34. UXPressia

UXPressia is a powerful customer experience mapping tool. Start customer journey mapping with UXPressia

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35. UXCam

UXCam is an experience analytics solution for mobile apps. Session replay, heatmaps, funnel analytics, and quantitative analytics make UXCam a complete enterprise analytics solution for deeply understanding user behavior. Book a short demo today.

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36. Validately

Validately is a user research platform that helps companies understand their customers better. It provides tools to conduct remote user testing, surveys, interviews, and more. Get insights quickly and easily to make better decisions.

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37. Userfeel.com

Pay as you go User Testing Tool with no subscription or monthly fees needed. Get better insights from our panel of high quality testers from just $30 per tester.

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Prototyping for UX Researchers

38. InVision

Invision is a design collaboration and prototyping tool that helps teams create and share interactive prototypes of their designs.

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User Experience Design for Web Designers

39. Mockuuups Studio

Mockuuups is a platform that helps you create beautiful product mockups in seconds. It offers a wide range of customizable templates, from iPhone to Apple Watch, to help you showcase your designs.

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User Interface Design for Web Designers

40. Affinity Designer

The perfect app for creatives and other professionals looking to create high-quality concept art, illustrations, logos, icons, UI designs, mock-ups and more.

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41. CorelDRAW

CorelDraw is a vector-based design software that allows users to create logos, illustrations, and other graphic designs.

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Other Usability Testing

42. Test IO

Test IO delivers a full range of web, mobile, and IoT testing, delivered as a service.

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43. Testbirds

Testbirds is a global leader in software testing, offering a comprehensive suite of services to ensure the quality of digital products. We help companies deliver better software faster, with fewer bugs and improved user experience.

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44. UserVoice

B2B user feedback software to help you listen to and guide your customers, prioritize product features that matter, and innovate efficiently.

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Other User Experience Design

45. Forrester

Forrester is a leading global market research company that helps organizations exceed customer demands and excel with technology. Learn how Forrester can help.

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46. FiveStars

Fivestars is an all-in-one payments and marketing platform that combines easy-to-use technology, customizable rewards and promotions, and automation.

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47. Perkville

All in one referral and customer loyalty programs

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48. Loyalty360

Customer experience is key to success. It's not just about providing a good product or service, but creating an experience that customers will remember and come back for. Companies must focus on creating a positive customer experience to build loyalty and trust.

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49. Loyaltyworks

Online rewards and employee recognition platform makes creating your own incentive program simple, Dealer reward programs, Online rewards, Dealer incentives

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50. UserVoice

B2B user feedback software to help you listen to and guide your customers, prioritize product features that matter, and innovate efficiently.

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Other User Interface Design

51. UserVoice

B2B user feedback software to help you listen to and guide your customers, prioritize product features that matter, and innovate efficiently.

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