Design & Prototyping Tools

Best Design & Prototyping tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Best overallStorybook98 score License-safe pickStorybookOSI-approved OSS Fastest shippingStorybook98 shipping

Use Case Rankings

Ordered by ToolVitals score, then health, shipping, confidence, GitHub stars, and name.

#	Tool	Health	Shipping	Openness	Stars	Score	Status
01	Storybook Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation	98	98	OSI-approved OSS	91.4k	98	Active
02	Pascal Create and share 3D architectural projects.	97	97	OSI-approved OSS	25.2k	97	Active
03	Penpot Open-source design and prototyping platform	97	96	OSI-approved OSS	61.8k	97	Active
04	Open Pencil AI-native design editor. Open-source Figma alternative.	97	96	OSI-approved OSS	9.4k	96	Active
05	Presenton Open-Source AI Presentation Generator and API (Gamma, Beautiful AI, Decktopus Alternative)	95	95	OSI-approved OSS	11.5k	95	Active
06	Tixl TiXL is an open source software to create realtime motion graphics.	95	94	OSI-approved OSS	5.2k	95	Active
07	Webstudio Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including with us.	94	94	OSI-approved OSS	9.1k	94	Active
08	Wayscriber Live overlay for drawing, annotating with zoom, hiding text, and capturing screenshots on Linux.	92	94	OSI-approved OSS	775	93	Active
09	Repath Studio Web-based vector graphics editor with procedural tooling.	89	93	OSI-approved OSS	173	91	Active
10	Silex Silex is an online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.	92	87	OSI-approved OSS	3k	90	Active
11	Ashim A Self Hosted Image Manipulator - 45+ tools, local AI, and pipelines in a single Docker container. No cloud, no telemetry. Your images never leave your machine.	89	91	OSI-approved OSS	2.9k	90	Active
12	Excalidraw Virtual whiteboard for sketching hand-drawn like diagrams	91	86	OSI-approved OSS	134.8k	89	Active
13	Graphite Open source comprehensive 2D content creation tool suite for graphic design, digital art, and interactive real-time motion graphics — featuring node-based procedural editing	91	86	OSI-approved OSS	27.8k	89	Active
14	Terrazzo Use DTCG tokens JSON to generate code for web, mobile, native apps, and more	89	86	OSI-approved OSS	482	88	Active
15	Next AI Draw.io Next.js web app that integrates AI with draw.io diagrams.	89	82	OSI-approved OSS	36.5k	86	Active
16	Modulz Code-based tool for designing and prototyping	87	84	OSI-approved OSS	19.4k	86	Active
17	Freecut FreeCut is a professional-grade video editor that runs entirely in your browser. Professional video editing, zero installation. Create stunning videos with multi-track editing, keyframe animations, real-time preview, and high-quality exports.	87	83	OSI-approved OSS	2.3k	85	Active
18	OpenPencil Open-source AI-native vector design tool.	87	79	OSI-approved OSS	6.9k	83	Active
19	Infinipaint Infinite space, infinite zoom, collaborative canvas program for massive sketches and notes.	81	82	OSI-approved OSS	524	81	Active
20	EasySchematic Browser-based AV signal flow diagram tool for broadcast, live production, and AV integration.	81	81	OSI-approved OSS	140	81	Active
21	app-store-screenshots end to end app store screenshot creation using AI	80	73	OSI-approved OSS	7.7k	77	Active
22	ArcMindAI Turns product ideas into complete system architectures using AI, from diagrams to technical blueprints.	77	71	OSI-approved OSS	164	75	Active
23	Awatif Structural analysis and design software.	76	70	OSI-approved OSS	189	74	Active
24	Drawtonomy Whiteboard for driving diagrams.	69	68	OSI-approved OSS	131	68	Warning
25	Knotter Open-source workspace for graphs.	50	35	OSI-approved OSS	4	44	Critical
26	Meshy Design tool to generate beautiful and colorful mesh gradients.	51	29	OSI-approved OSS	425	42	Warning
27	Drawnix 开源白板工具（SaaS），一体化白板，包含思维导图、流程图、自由画等。All in one open-source whiteboard tool with mind, flowchart, freehand and etc.	42	22	OSI-approved OSS	15k	34	Critical
28	Poster Design Online image editor and poster design tool for marketing graphics and social content.	38	19	OSI-approved OSS	5k	31	Critical
29	Onlook The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI	33	0	OSI-approved OSS	27.1k	20	Critical
30	Superdesign Open-source AI product design agent for UI design and prototyping.	14	0	OSI-approved OSS	7.6k	9	Critical
31	EasyLogic Studio Fantastic web design tool.	12	0	OSI-approved OSS	501	7	Critical
32	MaterialVect Web-based Material 3 expressive SVG editor.	12	0	OSI-approved OSS	2	7	Critical
33	Screenlite Open-source digital signage software	9	0	OSI-approved OSS	363	6	Critical

Not Scored

Tracked for context, but excluded from rankings because comparable open/source-visible evidence is unavailable.

Canva

Visual design platform for everyone

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Figma

Collaborative design tool for teams

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Framer

Website builder for designers

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Neoflow is an open-source whiteboard application designed for seamless collaboration and creativity. It combines simplicity with advanced features, making it perfect for teams, designers, and creative minds.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.