Spline

Spline is a browser-based design environment built around creating and sharing 3D content without a heavy desktop installation. It targets designers who want to prototype in three dimensions, teams that need to work on the Same scene at once, and educators who want students to learn 3D fundamentals in a shared online workspace.

What it does

Spline runs in the browser and combines 3D modeling, animation, material work, and interACTion design in one canvas. Multiple people can open a scene together, with per-person permissions, so a design review or a classroom exercise can hAPPen live rather than through exported files. Finished scenes can be embedded elsewhere on the web, which makes the tool useful for interactive product showcases and simple web experiences.

Key capabilities

• Real-time collaboration: Co-edit a scene with teammates and assign indiVidual access levels.
• 3D modeling: Work with parametric primitives and polygon editing to build and refine shapes.
• Animation: Add motion to objects and scenes to bring static models to life.
• Interactivity and game-style controls: Enable object interactions and build first- or third-person style experiences.
• Materials and sculpting: Adjust surface appearance with layered materials and shape organic forms.
• Physics simulation: Set up real-time physical behavior and interactions insIDE scenes.
• publishing: Share scenes through simple embedding on websites for presentations and dEMOs.

Optional AI-assisted features are advertised around the product, though their availability and scope may vary by plan and over time.

Who it is for

Product and motion designers use Spline for quick 3D prototypes and concept exploration. marketing and web teams use it for Lightweight interactive 3D content on sites. Educators and students benefit from the shared, browser-only workflow, and cross-functional teams appreciate that reviewers do not need specialized software to open a scene.

How to get started

1. Create an account at spline.design and open a new file in the browser.
2. Start from primitives or a template, then add materials and lighting.
3. Invite collaborators and set their permissions on the file.
4. Add animation, interactions, or physics if the scene needs them.
5. Share a link or embed the scene on a webpage for review or publishing.

Pricing and access caveat

Spline offers a free tier alongside paid plans, and specific limits on files, collaboration seats, exports, and features may change. Check the official pricing page for current tiers before committing a team; details such as veRSIon, developer attribution, and plan boundaries should be confirmed directly with the vendor.