FluidUI

Name: FluidUI
Brand: FluidUI
Price: 8.25 USD
Rating: 4.5 (97 reviews)

Unclaimed

Create interactive web and mobile prototypes quickly and easily with built-in libraries and collaboration.

Prototyping UI/UX Design

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4.5(97 across the web)

FreemiumVisit Website

Reviews onG2CapterraSourceForge

97 reviews tracked

The Bottom Line

Entry price

Free plan available, paid tiers above

Biggest pro

Fast and easy to create prototypes

Biggest con

Specific collaboration features like real-time editing are tied to higher-tier plans

TL;DR - FluidUI

Rapidly create interactive web and mobile prototypes.
Utilize over 2000 built-in components and upload custom assets.
Facilitate collaboration and communication of product vision.

Pricing: Free plan available

Best for: Growing teams

4.5/5 across review platforms

What is FluidUI?

Editorial review

Fluid UI is a rapid prototyping tool designed for designers, developers, product owners, and product visionaries to quickly create web and mobile prototypes. It enables users to communicate their product vision effectively by building interactive prototypes in minutes and sharing them instantly. The platform emphasizes speed, ease of use, and fun in the prototyping process. The tool offers a streamlined experience with over 2000 built-in components from popular design systems like Material Design, iOS, Windows, and Wireframe libraries. Users can also upload their own graphic assets and save them for future use. Fluid UI supports adding interactivity with various mouse and touch gestures, as well as beautiful page animations to bring prototypes to life. It also visualizes screenflows, showing how different pages relate to each other, and facilitates real-time collaboration among team members.

Available on: Web, iOS, Android, Windows, macOS

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcefluidui.com ↗

Pros & Cons

Pros

Fast and easy to create prototypes
Extensive library of pre-built components
Supports custom asset uploads
Interactive prototypes with gestures and animations
Clear visualization of page relationships (screenflow)

Cons

Specific collaboration features like real-time editing are tied to higher-tier plans
Export and print features are not available on the free or Solo plan

Ratings Across the Web

4.5(97 reviews)

SourceForge67 reviews

4.3/5

Ratings aggregated from independent review platforms. Learn more

Preview

Key Features

Rapid PrototypingOver 2000 Built-in Libraries (Material Design, iOS, Windows, Wireframe)Upload Existing Assets and create personal librariesMouse and touch gestures for interactivityBeautiful page animationsScreenflow visualizationReal-time collaborationOn-device testing with player app

Pricing Plans

Pricing checked Jun 11, 2026

Free

Free forever

Solo

$8.25 / month

All libraries
Unlimited uploads
Reviewing
On device testing with the player app
5 active projects
1 user license (you)
Unlimited reviewers

Pro

$19.08 / month

10 projects
1 user license (you)
Unlimited reviewers
Export, print and comment

Team

$41.58 / month

Unlimited projects
5 users (including you)
Unlimited reviewers
Export, print and comment
Real time team collaboration

Calculate your cost View full pricing

How FluidUI's pricing compares

At $8.25/mo, FluidUI is mid-range of its 5 direct competitors ($1.25 to $30/mo across the set).

Figma

$1.25

FluidUI

$8.25

$12

$13

$22.99

$30

Entry paid plan, monthly. Pricing checked Jun 11, 2026.

Reviews

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4.5/5

Across 97 verified user reviews on SourceForge, G2, Capterra

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Best FluidUI Alternatives

Top alternatives based on features, pricing, and user needs.

FigmaFreemium

The collaborative design platform

4.5

SketchPaid

Mac UI/UX design with real-time collaboration

4.5

Adobe XDPaid

Design, prototype, and share websites and mobile apps

4.4

FramerFreemium

Design, publish, and launch production websites with AI

4.5

ProtoPieFreemium

Interactive prototypes without code

4.5

See all prototyping tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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FluidUI FAQ

What types of pre-built components are available in Fluid UI's libraries?

Fluid UI includes over 2000 built-in components across various design systems. Users can choose from Material Design, iOS, Windows, and Wireframe libraries to quickly prototype their designs.

How does Fluid UI handle existing graphic assets for prototyping?

Users can easily upload their existing graphic assets directly into their prototypes. These assets can also be saved to personal libraries for convenient reuse in future projects.

What interactive elements can be added to prototypes in Fluid UI?

Fluid UI allows for the creation of interactive web and mobile prototypes using a simple linking system. This includes taps, swipes, clicks, and various other gestures to simulate real-world interactions.

Does Fluid UI offer features for team collaboration on projects?

Yes, Fluid UI supports real-time collaboration on projects. The Team plan provides unlimited access to all features for an entire team, enabling collaborative design and feedback.

What are the key differences between the Solo and Pro plans in Fluid UI?

The Solo plan is designed for exploring ideas, offering 5 active projects, one user license, and unlimited reviewers. The Pro plan, intended for frequent prototypers, expands to 10 projects, one user license, unlimited reviewers, and adds features like export, print, and commenting capabilities.

Source: fluidui.com