Justinmind is an interaction design and prototyping tool for web and mobile apps.
Alternatives to Fluid UI
Fluid UI centers on mobile-app mockups, letting you create and edit designs, then preview, share and export them. More than 2,000 built-in components span Material Design, iOS, Windows and wireframe libraries. You can add taps, swipes and other gestures, use page animations, and collaborate in real time on cloud-saved work. Reviewer mode offers click-throughs, chat, annotations and comments, with remote user testing also available. It runs in browsers and has a desktop…
Mockplus is a product design platform for rapid prototyping, collaboration and design systems.
Moqups combines wireframing, mockups, diagrams, prototypes, and whiteboarding in an online app.
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Visily
Visily is a browser-based AI UI design tool for people who need app mockups and product designs.
Free planWebExtension7.3From $14 a month - 5

Mokkup.ai
Mokkup.ai is a web-based dashboard wireframing tool for data analysts, BI developers, and others who create dashboard prototypes.
Free planWeb7.1From $8 a month - 6

Frame0
Frame0 is a desktop app for creating interactive prototypes and working with design systems.
Free planLinuxmacOSWindows7.0$79 one-time - 7
Grapholite
Grapholite is a diagramming tool for business graphics, including process charts, software models, organizational diagrams, and space plans.
AndroidiOSWebmacOS7.0$49.99 one-time - 8

NinjaMock
NinjaMock is a web tool for designing app and website mockups, building navigable prototypes, and sharing work with collaborators.
Free planWeb7.0From $85 a month - 9
Wireframe.cc
Wireframe.cc is a web-based tool for sketching page layouts and interface ideas.
Free planWeb7.0Free plan - 10

Banani
Banani is a web app that turns an idea, image, or product requirements document into editable, multi-screen mobile and desktop UI designs.
Free planWeb6.9From $12 a month - 11

MockFlow
MockFlow is a visual workspace for brainstorming and planning with diagrams, mind maps, flowcharts, moodboards, storyboards, wireframes, and lite prototypes.
Free planWebExtensionmacOSWindows6.9Free plan - 12

MockupTiger
MockupTiger is a browser-based wireframing application for creating website, mobile-app, and dashboard mockups.
WebLinuxmacOSSelf-hosted6.9From $89 a year - 13

Axure RP
Axure RP is a prototyping tool for creating interactive UX designs with triggers, conditions, actions, and variables.
macOS6.8From $29 a month - 14

Storyflow
Storyflow is a browser-based tool for low-fidelity wireframing and early product planning.
Free planWeb6.8From $9.99 a month - 15

Uizard
Uizard is a cloud-based design tool available on the web and as a browser extension.
Free planWebExtension6.8From $39 a year - 16
WireframeSketcher
WireframeSketcher is a paid desktop application and Eclipse plug-in for creating wireframes, mockups, and prototypes for desktop, web, and mobile applications.
LinuxmacOSWindows6.8$89 one-time - 17
6.7From $99 a year - 18
HotGloo
Web6.5From $11 a month - 19

Pencil Project
Pencil Project is a free, open-source desktop tool for creating GUI mockups, wireframes, and diagrams.
Free planLinuxmacOSWindows6.5Free plan - 20
Quickmock
Quickmock is a free, open-source tool for making low-fidelity wireframes.
Free planAndroidiOSWebAPI6.5Free plan - 21

Balsamiq Wireframes
Balsamiq Wireframes is a wireframing and prototyping tool available for macOS, Windows, and the web, with both desktop and cloud deployment.
WebmacOSWindows6.4From $16 a month - 22

Wireflow
Wireflow is a browser-based tool for creating user flow prototypes, with no installation required.
Free planWebSelf-hosted6.1Free plan - 23
Wirify
Wirify is a free bookmarklet that turns a web page into a wireframe in one click.
Free planWebExtension6.1Free plan - 24
Snapwire
Snapwire is a free, browser-based wireframing tool for planning page structure with teams.
Free planWeb6.0Free plan - 25
Wire Studio
Wire Studio is a browser-based, local-first editor for creating wireframes with Wire DSL.
Free planWeb6.0Free plan - 26

LK Forge Wireframe Tool
LK Forge Wireframe Tool is a free browser canvas for sketching low-fidelity website and app screens.
Free planWeb5.9Free plan - 27
5.9Free plan - 285.7


