Open Claude UI alternatives

Open Claude UI is listed under Design: MIT React components that reimplement the Claude Design System and its interaction physics. We compare it with 15 other Design tools that have researched data. 14 of them offer a free plan or are free to use (6 open source), and 1 are paid only. Open Claude UI itself is free and open source.

Order: Sorted by how much you can use for free (free or open source first, then free plan with paid tiers, then paid only), then by the number of documented features, then alphabetically. No ratings or reviews are used.

Tool	Pricing	Free tier	Key features	Who it's for
Open Claude UI this tool	Free and open source	Yes	30 React modules: 11 atomic controls and 19 motion and layout modules TypeScript, React 18, Tailwind CSS, and Framer Motion Includes an offline storybook that opens in the browser	Developers rebuilding Claude-style desktop UI in React.
Sketch	Paid Paid plans from $12 per editor/month, billed yearly	No	Vector editor with stack layouts and nestable frames Prototypes with animation, overlays, gestures, and scrolling Co-edit in real time or design offline on Mac	For designers, from freelancers and small teams to large organizations.
Figma	Freemium (free plan + paid tiers) Paid plans from $3/month	Yes	Design and prototype interfaces in one shared file Generate code from prompts using design context Inspect designs and view CSS for handoff	Designers, engineers, and product managers working solo or in teams.
Spline	Freemium (free plan + paid tiers) Paid plans from $12/month billed yearly	Yes	Model, animate, and texture 3D scenes in the browser Collaborate on the same design file in real time Add events, states, physics, and timeline animation	Designers and teams building interactive 2D and 3D experiences for the web and apps.
FigCraft	Free and open source	Yes	Auto layout in both directions, with wrap and grid Components, variants, and instance overrides that survive edits Vector networks with the pen, pencil, and paint-bucket fills	Designers who want an open-source interface design app.
SolidCraft	Free and open source	Yes	Sketch lines, arcs, splines, conics, and text, then add dimensions and constraints Extrude, revolve, loft, shell, thread, and pattern solids on a timeline Edit, suppress, reorder, or delete a feature and rebuild the model	People modeling dimensioned 3D parts in the editor or through an AI agent.
Blender	Free and open source	Yes	Path-trace on CPU and GPU with live viewport preview Model, sculpt, subdivide, and paint textures on meshes Track cameras and objects from footage inside the scene	Designers, developers, engineers, and artists making 3D and 2D work.
EffectCraft	Free and open source	Yes	Compose layers and animate properties with keyframes Apply 306 effects and all nine layer styles Import and export Lottie for web and apps	People making animated titles, motion graphics, and composites.
ArtCraft	Freemium (free plan + paid tiers)	Yes	Compose the shot yourself, then let the model render it Place virtual actors into physical environments Build scenes with depth from images, backdrops, and props	Artists who compose a shot before the model renders it.
Rive	Freemium (free plan + paid tiers) Cadet $9/seat/mo; Voyager $32/seat/mo	Yes	Editor for designing, animating, and coding interactive UI and motion CLI agent can generate interactive UI, motion, and game experiences Files run natively on mobile, desktop, web, consoles, and vehicles	Designers, animators, and developers building interactive apps, games, and websites.
Miro	Freemium (free plan + paid tiers) Paid plans from $8/month per member, billed yearly	Yes	Shared infinite canvas where teams edit together Docs, tables, slides, diagrams, timelines, and kanban on the canvas AI generates diagrams, tables, summaries, and workflows	Teams in product, design, engineering, and other functions that plan and build together.
Mobbin	Freemium (free plan + paid tiers) Paid plans from $10 per month billed yearly	Yes	Search a library of 621,500+ mobile and web screenshots Browse app and site screens, flows, animations, and UI elements Connect AI agents through MCP on Pro and Team plans	Designers, freelancers, product teams, and AI agents researching app and site UI.
Penpot	Freemium (free plan + paid tiers) Paid plans from $7 editor/month	Yes	Design interfaces with wireframes, prototypes, and CSS Grid Share components, design tokens, and libraries across teams Connect AI agents and LLMs to design and code	Designers, developers, and AI agents on teams building digital products.
Whimsical	Freemium (free plan + paid tiers) Paid plans from $10/month per editor	Yes	Generate flowcharts, mind maps, and wireframes from a text prompt Use an infinite canvas for diagrams, wireframes, and whiteboards Edit boards together in real time and leave comments	Product builders and teams who diagram, wireframe, and document together.
CadCraft	Free and open source	Yes	Eight apps for drafting, BIM, modeling, markup, takeoff, civil, detailing, and parts Commands, layers, and layouts follow familiar CAD and BIM tools Drawings stay in open formats, including DWG, DXF, IFC, STEP, PDF, and LandXML	Architects, engineers, drafters, estimators, and detailers.
diagrams.net	Free and open source	Yes	Save diagrams locally or in storage you choose Edit together live with shared cursors Connect Google, Microsoft, Atlassian, GitHub, VS Code, and Notion	Teams and developers who create and embed diagrams.

Open Claude UI alternatives: FAQ

What are the best Open Claude UI alternatives?

Sketch, Figma, Spline, FigCraft, SolidCraft, Blender, EffectCraft, ArtCraft, Rive, Miro, Mobbin, Penpot, Whimsical, CadCraft, diagrams.net are the Open Claude UI alternatives in our directory that have researched data. They are ordered by how much you can use for free, then by documented features. No ratings or reviews are used, so the order is not a quality ranking.

Is there a free alternative to Open Claude UI?

Figma (freemium (free plan + paid tiers)), Spline (freemium (free plan + paid tiers)), FigCraft (free and open source), SolidCraft (free and open source), Blender (free and open source), EffectCraft (free and open source), ArtCraft (freemium (free plan + paid tiers)), Rive (freemium (free plan + paid tiers)), Miro (freemium (free plan + paid tiers)), Mobbin (freemium (free plan + paid tiers)), Penpot (freemium (free plan + paid tiers)), Whimsical (freemium (free plan + paid tiers)), CadCraft (free and open source), diagrams.net (free and open source). Open Claude UI is itself free and open source, Free tiers can change, so check each site.