Design interfaces, wireframes, and clickable prototypes for websites and apps, then hand them off to developers.
UX/UI design tools help teams turn interface ideas into screen layouts, reusable components, and interactive prototypes. The differences become important when a design moves into development. Some platforms emphasize shared design libraries and developer handoff, others let designers use real coded components, and specialist prototyping applications simulate complex interactions. Operating system support and self-hosting requirements also affect team workflows. These six products cover different kinds of interface work, organized by situation rather than by an overall ranking.
By SEM Solutions Editorial Team. Researched from vendor documentation, not hands-on testing. Ordered by Overall Score. Checked October 16, 2026. How we research
Collaborative Product Design
#1 of 6 in UX/UI Design
Figma combines interface editing, reusable components, and interactive prototyping in shared design files. Variables support multiple modes and reusable design decisions. Developers working in Dev Mode can inspect measurements, component properties, and variable references without modifying a design. This connects a collaborative design library to the implementation details engineers need.
Open-Source Design Collaboration
#2 of 6 in UX/UI Design
Penpot uses layout concepts familiar from web development, including CSS Grid and Flexbox. Its Inspect tab exposes implementation-oriented details, while native design tokens allow reusable styling decisions to move between files. Organizations can deploy the software on their own infrastructure, distinguishing it from design environments where hosting is entirely controlled by the vendor.
Native Mac Interface Editing
#3 of 6 in UX/UI Design
Sketch keeps interface creation in a macOS application while allowing developers and reviewers to inspect shared work through a browser. Smart Animate provides motion between matching layers, and web-based inspection exposes measurements and downloadable assets. This division between native editing and web handoff matters for design organizations standardized on Mac hardware.
Mobile Gesture Demonstrations
#4 of 6 in UX/UI Design
Proto.io offers interactive components and animation controls for demonstrating mobile experiences. Designers can define screen states, build timeline animations, and attach gesture interactions to interface elements. The Proto.io Player displays published prototypes on phones and tablets, including offline previews. These capabilities support reviewing mobile behavior with stakeholders before application development.
Real Component Prototyping
#5 of 6 in UX/UI Design
UXPin Merge brings coded user interface components into the design process. Teams can import components from Storybook or npm and configure their properties in a prototype, rather than recreating each component visually. This approach reduces divergence between prototypes and an existing React component library when engineers maintain production design-system code.
Complex Application Interactions
#6 of 6 in UX/UI Design
Axure RP can simulate application behavior before any backend is implemented. Dynamic panels represent different screen states, repeaters display data-driven lists, and conditional logic governs what happens after an action. Adaptive views help represent changes between device widths. Publishing to Axure Cloud makes these functional prototypes accessible for review and inspection.
Ranked by Overall Score: our Editor Rating and Market Signal, 50/50. Market Signal uses Ahrefs and Semrush data through September 2026, pulled October 12 to 13, 2026. How we score
Browser-based interface design tool with prototyping, FigJam whiteboards, Slides and Dev Mode handoff.
Best for: Product design and engineering teams that share one design system and hand finished screens to developers inside the same file.
Open-source, browser-based design and prototyping tool that can be self-hosted, with native design tokens.
Best for: Product and engineering teams that need a design tool they can self-host and audit as open-source code.
Native Mac design app with real-time co-editing, Smart Animate prototypes and browser-based developer handoff.
Best for: Mac-based product design teams that want a native desktop editor and share files with developers through a browser.
Browser-based prototyping for mobile and web apps with 250+ native UI components and player apps.
Best for: Product designers and agencies that need clickable, animated mobile app prototypes ready for user testing sessions.
Code-backed prototyping tool where designers build with real React components through UXPin Merge.
Best for: Enterprise teams with an established React design system who want prototypes built from production components.
Desktop prototyping app for functional UX prototypes with conditional logic, repeaters and adaptive views.
Best for: UX architects and business analysts documenting complex enterprise applications that need data-driven, logic-heavy prototypes.
Figma exposes design measurements, component information, and variables through Dev Mode. Sketch provides web-based developer inspection and asset exports, while Penpot shows code-oriented layout information. UXPin Merge takes a different approach by using real UI components inside prototypes. The choice depends on whether developers need detailed specifications or direct alignment with an existing coded design system.
Yes, but the amount of behavior differs. Axure RP can model conditional logic and data-driven components, while Proto.io supports device gestures, animations, and multiple interface states. UXPin Merge uses components from a development library. These prototypes can demonstrate an interaction without necessarily providing production authentication, persistent data, or a complete backend service.
Several products allow browser-based inspection even when design editing works differently. Figma and Penpot use browser-based collaboration, while Sketch's full editing environment requires macOS but offers web access for inspection. Before standardizing a process, check which collaborators need editing capabilities and which only need to inspect files or export assets.
Yes, Figma, Penpot and Proto.io all offer a free plan. Free tiers usually come with usage limits, so check whether they cover your volume before relying on them long-term.
Among the tools listed here whose main product is in this category and whose pricing we've verified, Proto.io has the lowest listed starting price: $29/mo. Starting price isn't the whole picture, so check what's included at that tier before deciding.