Free
Excalidraw
Open SourceWhiteboards & Diagrams · Design & Prototyping
Hand-drawn style virtual whiteboard, ideal for quick diagrams.
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Discover the 22 best free tools for design & prototyping. Free-to-use, no credit card or subscription required. Curated, compared, and updated for developers.
| Tool | Pricing | Platforms | Top Strength | Link |
|---|---|---|---|---|
| Excalidraw | free | web | Hand-drawn style virtual whiteboard, ideal for quick diagrams. | Details → |
| Photopea | free | web | Free browser-based Photoshop alternative that opens PSD files. | Details → |
| unDraw | free | web | Free open-source SVG illustrations with a live color picker. | Details → |
| Material Design 3 | free | web | Google's open-source design system with guidelines and tokens. | Details → |
| Human Interface Guidelines | free | web | Apple's design guidelines for iOS, macOS and other platforms. | Details → |
| Shopify Polaris | free | web | Shopify's design system with components, tokens and guidance. | Details → |
| Primer | free | web | GitHub's design system with React components and tokens. | Details → |
| Carbon | free | web | IBM's open-source design system for products and experiences. | Details → |
| Fluent 2 | free | web | Microsoft's cross-platform design system. | Details → |
| Atlassian Design System | free | web | Atlassian's design system with components and content guidelines. | Details → |
Showing top 10 of 22. Browse the full grid below.
Whiteboards & Diagrams · Design & Prototyping
Hand-drawn style virtual whiteboard, ideal for quick diagrams.
Design Tools · Design & Prototyping
Free browser-based Photoshop alternative that opens PSD files.
Design Tools · Design & Prototyping
Free open-source SVG illustrations with a live color picker.
Design Systems · Design & Prototyping
Google's open-source design system with guidelines and tokens.
Design Systems · Design & Prototyping
Apple's design guidelines for iOS, macOS and other platforms.
Design Systems · Design & Prototyping
Shopify's design system with components, tokens and guidance.
Design Systems · Design & Prototyping
GitHub's design system with React components and tokens.
Design Systems · Design & Prototyping
IBM's open-source design system for products and experiences.
Design Systems · Design & Prototyping
Microsoft's cross-platform design system.
Design Systems · Design & Prototyping
Atlassian's design system with components and content guidelines.
Design Tools · Design & Prototyping
Free, open-source professional vector graphics editor.
Illustrations & Assets · Design & Prototyping
Freepik's library of customizable vector illustrations — recolor, animate and export for products and decks.
Illustrations & Assets · Design & Prototyping
Hand-drawn character illustration library (CC0) — mix faces, poses and outfits into millions of combos.
Illustrations & Assets · Design & Prototyping
Free modular people illustrations by Pablo Stanley — rotate limbs and mix outfits in a friendly flat style.
Illustrations & Assets · Design & Prototyping
Avatar generator with 30+ styles — deterministic avatars from any seed via library, API or playground.
Typography & Fonts · Design & Prototyping
The free web font library — 1,800+ open-source families with variable fonts and easy embed.
Typography & Fonts · Design & Prototyping
Indian Type Foundry's free font service — professionally designed families, free for commercial use.
Typography & Fonts · Design & Prototyping
Self-host open-source fonts as npm packages — versioned, offline-friendly and dependency-pinned.
Typography & Fonts · Design & Prototyping
Visual type-scale calculator — pick a ratio and base size, preview the resulting hierarchy live.
Inspiration & Galleries · Design & Prototyping
A curated gallery of astonishing websites — a tight, high-quality alternative to endless scroll.
Inspiration & Galleries · Design & Prototyping
Jon Yablonski's collection of UX maxims (Hick's Law, Fitts's Law…) with citations and practical takeaways.
Design Tools · Design & Prototyping
Figma's marketplace of free UI kits, plugins, templates and wireframe libraries from the community.