Spline Design Alternatives (January 2026)

Spline is a free 3D design software with real-time collaboration to create web interactive experiences in the browser. Easy 3d modeling, animation, textures, and more.

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1.
3D Viewer Online - Online collaboration platform for 3D models
https://www.3dvieweronlin
.com/

3D Viewer online is an online collaboration platform for 3D models that allows you to view, publish and collaborate on 3D models

2.
Agora World - The simplest way to create 3D
https://www.agoraworl
.io/

Explore Agora World for innovative collaborative 3D design tools. Engage, interact, and connect in a dynamic digital environment.

3.
Rayon.design: Draw floor plans faster together
https://www.rayo
.design/

Discover Rayon, the best architectural design software. Better than CAD, simpler than BIM, Rayon is the ideal software for designing floor plans with your team, in your browser.

4.
Free 3D design software | HomeByMe
https://home.b
.me/en/

Intuitive and easy to use, with HomeByMe create your floor plan in 2D and furnish your home in 3D with real brand named furnitures.

5.
Figma: The Collaborative Interface Design Tool
https://www.figm
.com/

Figma is the leading collaborative design tool for building meaningful products. Seamlessly design, prototype, develop, and collect feedback in a single platform.

6.
Soft8Soft: We make Verge3D, artist-friendly toolkit for web interactives
https://www.soft8sof
.com/

Verge3D is a WebGL-based tool for Blender, 3ds Max, or Maya designers. Do 3D configurators, e-commerce, e-learning, games with ease!

8.
Sketch · Design, collaborate, prototype and handoff
https://www.sketc
.com/

Sketch is the all-in-one platform for digital design — with collaborative design tools, prototyping and developer handoff. Get started for free.

9.
Free prototyping tool for web & mobile apps - Justinmind
https://www.justinmin
.com/

Easily create web and mobile app prototypes and wireframes with Justinmind UI prototyping tool. It's FREE. Start prototyping now!