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.

Use Case Rankings

Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.

# Tool Health Shipping Openness Stars Score Status
01 Penpot
Open-source design and prototyping platform
100 100 OSI-approved OSS 49.6k 100 Active
02 Presenton
Open-Source AI Presentation Generator and API (Gamma, Beautiful AI, Decktopus Alternative)
95 98 OSI-approved OSS 8.1k 97 Active
03 tldraw
very good whiteboard infinite canvas SDK
93 100 License unknown 47.8k 97 Active
04 Pascal
Create and share 3D architectural projects.
89 98 OSI-approved OSS 16.7k 95 Active
05 Framer
Website builder for designers
100 91 Proprietary target 93 Active
06 Open Pencil
AI-native design editor. Open-source Figma alternative.
87 95 OSI-approved OSS 5.6k 93 Active
07 simple-icons
SVG icons for popular brands
95 83 License unknown 25.2k 92 Active
08 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.
88 93 OSI-approved OSS 1.6k 91 Active
09 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.
84 84 OSI-approved OSS 8.6k 88 Active
10 Terrazzo
Use DTCG tokens JSON to generate code for web, mobile, native apps, and more
88 72 OSI-approved OSS 404 86 Active
11 Wayscriber
Live overlay for drawing, annotating with zoom, hiding text, and capturing screenshots on Linux.
79 90 OSI-approved OSS 594 86 Active
12 Repath Studio
Web-based vector graphics editor with procedural tooling.
74 84 OSI-approved OSS 158 84 Warning
13 Infinipaint
Infinite space, infinite zoom, collaborative canvas program for massive sketches and notes.
73 82 OSI-approved OSS 406 82 Warning
14 Next AI Draw.io
Next.js web app that integrates AI with draw.io diagrams.
87 65 OSI-approved OSS 31.8k 81 Active
15 Excalidraw
Virtual whiteboard for sketching hand-drawn like diagrams
86 55 OSI-approved OSS 125.2k 80 Active
16 Plasmic
Visual builder for React. Build apps, websites, and content. Integrate with your codebase.
79 69 OSI-approved OSS 6.9k 80 Active
17 ArcMindAI
Turns product ideas into complete system architectures using AI, from diagrams to technical blueprints.
79 72 OSI-approved OSS 165 79 Active
18 OpenPencil
Open-source AI-native vector design tool.
81 57 OSI-approved OSS 3.3k 78 Active
19 Silex
Silex is an online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.
79 60 OSI-approved OSS 2.8k 78 Active
20 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
77 69 OSI-approved OSS 26.3k 78 Active
21 Figma
Collaborative design tool for teams
82 59 Proprietary target 76 Active
22 Tixl
TiXL is an open source software to create realtime motion graphics.
68 71 OSI-approved OSS 5k 76 Warning
23 Modulz
Code-based tool for designing and prototyping
76 58 OSI-approved OSS 19k 75 Active
24 EasySchematic
Browser-based AV signal flow diagram tool for broadcast, live production, and AV integration.
67 71 OSI-approved OSS 90 75 Warning
25 Awatif
Structural analysis and design software.
72 60 OSI-approved OSS 158 74 Warning
26 HeyForm
Open-Source Form Builder
70 57 OSI-approved OSS 8.8k 74 Warning
27 OpenCut
The open-source CapCut alternative
67 63 OSI-approved OSS 55.5k 74 Warning
28 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.
72 63 OSI-approved OSS 1.4k 73 Warning
29 powder
The premier block theme for WordPress designers and agencies. Ka-chow!
58 71 License unknown 96 72 Warning
30 OpenStory
Open-source AI-powered video sequence platform.
64 63 OSI-approved OSS 121 70 Warning
31 Iconify
Universal icon framework. One syntax for FontAwesome, Material Design Icons, DashIcons, Feather Icons, EmojiOne, Noto Emoji and many other open source icon sets (over 150 icon sets and 200k icons). SVG framework, React, Vue and Svelte components!
71 41 OSI-approved OSS 6.1k 69 Warning
32 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.
74 36 OSI-approved OSS 14k 67 Warning
33 Cliply
download stuff effortlessly :D
71 30 OSI-approved OSS 207 64 Warning
34 Drawtonomy
Whiteboard for driving diagrams.
62 54 OSI-approved OSS 84 64 Warning
35 Knotter
Open-source workspace for graphs.
51 63 OSI-approved OSS 4 61 Warning
36 app-store-screenshots
end to end app store screenshot creation using AI
65 28 OSI-approved OSS 5.6k 59 Warning
37 MaterialVect
Web-based Material 3 expressive SVG editor.
49 37 OSI-approved OSS 2 55 Critical
38 Onlook
The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI
64 0 OSI-approved OSS 25.9k 51 Warning
39 EasyLogic Studio
Fantastic web design tool.
57 0 OSI-approved OSS 500 46 Warning
40 Trace
Open-source design and prototyping tool that exposes structure and logic.
38 24 License unknown 0 44 Critical
41 Neoflow
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.
46 0 License unknown 251 42 Critical
42 Screenlite
Open-source digital signage software
41 0 OSI-approved OSS 354 39 Critical
43 PrettyBlocks
Open source page builder for PrestaShop.
36 0 OSI-approved OSS 93 38 Critical
44 Superdesign
Open-source AI product design agent for UI design and prototyping.
32 0 OSI-approved OSS 6.6k 38 Critical
45 Animockup
Open-source browser tool for creating animated product and device mockups.
31 0 OSI-approved OSS 1.8k 33 Critical
46 Poster Design
Online image editor and poster design tool for marketing graphics and social content.
31 0 OSI-approved OSS 4.7k 31 Critical
47 Meshy
Design tool to generate beautiful and colorful mesh gradients.
28 0 OSI-approved OSS 417 31 Critical
48 SketchFlow
Collaborative whiteboard platform for visual collaboration.
23 0 License unknown 5 29 Critical
49 Sign Net
Open-source digital signage platform for screens, playlists, and schedules.
22 0 License unknown 32 27 Critical

Evidence Watch

Tracked tools with useful public signals but no verdict score yet.