Fluid UI
by Fluid UIFluid UI suits designers, product managers, developers, entrepreneurs, and others who need to communicate app ideas.
Free plan Free trial From $8.25 a month AndroidiPhone & iPadWebWindowsMacLinux
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Best Interface Design Tools 2026
Every product here is ranked by Samsung Mobile US Press's record score: what its maker publishes about it, where it runs (Android first), whether it is free to try, and how recently the facts were read.
02
Mockplus
Mockplus may suit designers, product managers, and non-designers developing early ideas, as well as designers refining interface details.
AndroidiPhone & iPadWeb+4 Record6.4 Visit
03
UXPin
UXPin suits individuals and product teams building interactive prototypes and sharing them for comments.
AndroidiPhone & iPadWeb+2 Record6.4 Visit
04
Figma
Figma suits product teams that need shared design, prototyping, development handoff, whiteboarding, or presentation tools.
AndroidiPhone & iPadWeb+2 Record6.1 Visit
05
Justinmind
Justinmind suits design teams, business analysts, and developers who need to create and share interactive web or mobile prototypes.
AndroidiPhone & iPadWeb+4 Record6.1 Visit
6
Marvel
AndroidiPhone & iPadWeb+1 $12 a month, billed yearly Record6.0 Visit Marvel suits individuals and teams building and sharing app or website concepts, then handing design details to developers.
7
Proto.io
AndroidiPhone & iPadWeb $29 a month Record6.0 Visit Proto.io suits designers and teams who want to create and share interactive prototypes without coding.
8
ProtoPie
AndroidiPhone & iPadWeb+4 $25 a month, billed yearly Record5.9 Visit ProtoPie suits designers and teams building interactive prototypes that use device features or connect multiple devices.
9
Penpot
WebAPISelf-hosted $7 a month Record5.5 Visit Penpot suits solo users, small teams, mid-market organizations, and enterprises needing shared design and developer handoff.
11
Sketch
iPhone & iPadWebMac $12 a month, billed yearly Record5.3 Visit Sketch suits UI and UX designers working on interfaces, design systems, and prototypes, as well as teams that need browser-based review and developer handoff.
13
Moqups
WebBrowser extensionAPI $11 a month Record5.2 Visit Moqups suits individuals, solo professionals, and teams creating visual product or web materials.
14
NinjaMock
Web $85 a month, billed yearly Record5.2 Visit It suits individuals and teams creating interactive app or website wireframes, prototypes, and presentations in a browser.
16
Visily
WebBrowser extension $14 a month Record5.0 Visit Visily suits founders, product managers, analysts, developers and teams who need to make UI mockups without a design-focused workflow.
17
MockFlow
WebWindowsMac+1 Free plan Record4.9 Visit Basic may suit personal and nonprofit visual thinking.
18
Pencil Project
WindowsMacLinux Free plan Record4.9 Visit Pencil suits people creating interface mockups or diagrams on Linux, macOS, or Windows who want a free desktop tool.
19
Origami Studio
AndroidiPhone & iPadMac Free plan Record4.8 Visit Origami Studio suits designers who want to build interactive prototypes with adaptive layouts and device-aware interactions.
22
Uizard
WebBrowser extension $39 a year Record4.3 Visit Uizard fits individuals, teams, and organizations that need browser-based interface design, prototyping, collaboration, and developer handoff.
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