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Open Source Projects tagged "Prototyping"

A curated collection of the best open source projects tagged "Prototyping". Each listing includes a website screenshot along with a detailed review of its features.

Penpot

Open-source UI design and prototyping for product teams

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50,671
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3,272
Last commit
1 day ago

Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.

Open Source Alternative to:

Canva

Mockoon

Effortless API mocking for seamless development

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8,304
Forks
461
Last commit
15 hours ago

Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.

Open Source Alternative to:

Postman

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