10 Best UI Design Tools of 2026

Figma tops this list because it covers the whole interface workflow in one file. Auto layout builds responsive frames, components and styles keep a design system consistent, and variable modes switch themes such as light and dark. Prototypes support Smart Animate, overlays, video and a responsive viewer, and paid plans add variables, conditional logic and expressions for prototypes that behave like real apps. Developers inspect specs in Dev Mode or connect AI coding tools through the MCP server, and Figma Make turns a prompt or an existing design into a working prototype. The free Starter plan includes unlimited drafts and UI kits, so a solo designer can learn the tool at no cost. Costs climb with team size: a Full seat on Professional is $16 per month billed annually and $55 on Organization, although Dev seats at $12 and Collab seats at $3 keep developers and reviewers cheaper. Viewers and commenters on paid plans need no seat at all.

Penpot is the strongest free option for interface design. It is open source, runs in the browser, and can be installed on your own servers, which matters for agencies and public bodies that cannot put client work on a third-party cloud. Its layout engine uses CSS Grid and Flex, so the rules a designer sets map directly to the CSS a developer writes, and the inspect panel exposes CSS, HTML and SVG. Native design tokens, components and shared libraries cover design system work, and an open MCP server lets AI agents read and edit files. The hosted Professional plan costs $0 and Penpot says it has no missing tools. The Unlimited plan adds storage, longer version history and early features for $7 per editor per month, with the bill capped at $175 a month whatever the team size, and Enterprise at $25 per member adds SSO and region choice. The plugin catalog and community templates are smaller than Figma's, and switching teams will need time to adjust.

Sketch is the pick for designers who work on a Mac and want a native app rather than a browser tab. The editor runs offline, documents can be saved locally, and the same files open in real time with a team when you are online. Prototypes play in the browser or on the iPhone and iPad app, which can also mirror designs from your Mac. Every subscription includes unlimited free viewers who can comment, inspect and download assets, so handoff costs nothing extra, and a free MCP server connects AI clients to your designs without credits. Standard costs $12 per editor per month billed yearly with 50GB of storage per editor, Professional at $24 adds SSO and permissions groups, and a $120 Mac-only license suits solo designers who never share files online. The limits are clear: the editor needs macOS Sequoia or newer, there is no free plan, and component variants were still in beta when we checked.

Framer belongs on a UI design list for one reason: what you design is the finished website. You lay out pages on a canvas with breakpoints for desktop, tablet and phone, adjust type, components and effects, and publish to Framer's hosting with CMS, analytics and SEO already in place. A design agent can generate layouts, sections and components in place, and every change stays editable. The free plan gives you a Framer domain, 1 GB of bandwidth and 500 AI credits to try. Basic costs $10 per month per site on yearly billing with a custom domain and 2 CMS collections, and Pro at $30 adds 10 collections, redirects, staging and branching with previews. Additional editors are $20 a month and viewers are free. The trade-off is scope. Framer does not design native iOS or Android screens or produce a developer handoff for app code, so product designers working on apps still need Figma, Penpot or Sketch.

Lunacy is a free design app from Icons8 that runs natively on Windows, macOS and Linux, with a browser version added for quick access. It covers the core of interface work: auto layout with constraints, components and variables, clickable prototypes and real-time collaboration, and it keeps working offline. Built-in graphics are its distinctive extra, with Icons8 icons, illustrations, photos and UI kits available inside the canvas, plus AI helpers for upscaling, background removal, placeholder text and avatars. It also imports Figma files and converts them to the .sketch format. A full single user license costs nothing, which makes Lunacy the most capable free native option for Windows and Linux designers. Teams that need private infrastructure can deploy Lunacy Cloud on their own server, but that starts with a demo request. The plugin ecosystem and community are much smaller than Figma's, and prototyping stops at clickable flows rather than logic-driven interactions.

Axure RP is the tool to reach for when a prototype has to behave like real software. Interactions combine mouse, touch and keyboard events with conditions and variables, forms have working text fields and droplists, and the repeater widget builds tables and grids that users can sort and filter during a test. Dynamic panels with multiple states handle popups and swipeable mobile screens, and adaptive views show the right layout for desktop, tablet or phone. Flow diagrams, notes and specifications sit next to the prototype, which helps teams that document requirements for developers and stakeholders. Every subscription includes unlimited publishing and hosting on Axure Cloud. Axure RP Pro costs $29 per user per month on annual billing and Team, which adds co-authoring and revision history, costs $49. There is a 30-day trial but no free plan, and the interface is denser than canvas-first tools, so expect a learning period. Qualified students and educators get the Team edition free.

UXPin takes a different approach from vector design tools: prototypes are built with coded components, so a button in the prototype is the same React component a developer ships. Core includes built-in coded libraries for MUI, Bootstrap, Tailwind and Ant Design, plus conditional logic, variables and expressions, custom fonts and password-protected previews. Growth adds shadcn/ui, reusable patterns, design systems, Storybook integration, roles and SSO, while Enterprise adds Git integration for a team's own component library. An AI prototyping assistant generates layouts from prompts, with 250 monthly credits on Core and 600 on Growth plus 100 for each extra editor. Unlimited viewers and commenters can inspect specs, assets and code. Pricing is higher than the canvas tools: Core costs $29 per seat per month billed annually or $49 month to month, and Growth $40 annually or $69 monthly. Every plan starts with a 14-day trial, after which the free plan allows 2 prototypes.

ProtoPie is a specialist for the moments when a clickable mockup is not enough. Designers import screens from Figma or Sketch and then add interaction logic, so prototypes can run across several devices at once. Through the Connect add-on, prototypes talk to Arduino boards and native hardware, which is why ProtoPie markets itself to automotive, aviation, medical and IoT teams. Handoff recordings and Dev View show developers exactly how an interaction should behave. The free plan holds 2 prototypes with 8 scenes each and 50 MB of cloud storage. Basic costs $25 per month for a single seat on yearly billing with 20 prototypes and no watermark, and Pro at $47 per editor per month adds unlimited prototypes, team libraries and 5GB of storage per team. ProtoPie does not replace a layout tool: you still draw screens elsewhere, so its cost sits on top of Figma, Sketch or Penpot.

Justinmind sits between quick wireframing tools and Axure RP. The free plan already includes UI design and wireframing, interactive input forms, vector design with a pen tool, slices and unlimited screens, though only 1 project. Standard at $19 per editor month to month, or $295 per editor per year, adds advanced interaction design, variables, shared UI libraries, testing on mobile devices and unlimited projects. Professional at $29 adds masters, smart templates, data simulation, user flows, HTML export and user testing integrations, which covers most of what a UX team needs to test a form-heavy web app. Enterprise at $59 per editor adds SAML SSO, requirements management, Jira and Azure DevOps integration, and collaboration on your own servers. The trade-off is a more traditional interface than Figma or Penpot, and the visual design tools are aimed at wireframes and prototypes more than polished UI art. The vendor also offers perpetual licenses alongside subscriptions.

Uizard is built for people who need app or web mockups but are not trained designers. Autodesigner 2.0 generates projects, screens and themes from a text prompt, Screenshot Scanner turns a screenshot of any app into editable screens, and Wireframe Scanner converts a photo of a paper sketch into a digital wireframe. Templates cover mobile apps, websites, web apps and tablets, and prototypes link screens with transitions. The free plan is a taster: 2 projects, 3 AI generations per month on the older Autodesigner 1.5, and exports at 1x resolution. Pro costs $12 per month billed annually and raises the limits to 500 AI generations, up to 100 projects, private projects, all templates and developer handoff in React and CSS. Business at $39 per month adds 5,000 generations, unlimited projects and a custom brand kit. Professional designers will find fewer precision tools than in Figma or Penpot, so Uizard fits early ideas better than final production UI.