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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

  • Stars

    62,175

  • Last commit

    8 hours ago

  • License

    MPL-2.0
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

  • Stars

    8,475

  • Last commit

    2 days ago

  • License

    MIT
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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