Spline

Spline is a 3D design tool that runs in the browser and supports real-time collaboration. It covers modeling, animation, texturing, physics simulation, and game controls, so you can build interactive web experiences without installing heavy desktop software. The site describes it as suitable for both team collaboration and individual creation, with basic use free and full pricing details on the official site. It appeals to designers who want to prototype 3D web content quickly and to teams that need several people editing and reviewing the same scene at once. Because everything runs in the browser, performance still depends on your machine and connection.

- Model, animate, and texture 3D objects in the browser

- Collaborate on the same scene in real time

- Add physics and interactive controls for web experiences

- Export or publish scenes for use on a website

- 3D designers building interactive web content

- Web developers who want 3D without heavy tooling

- Design teams that need shared review and editing

Advanced features may sit behind a paid plan, so check the official pricing before you commit a project. Heavy scenes with lots of geometry can strain a browser, and a weak connection makes collaboration harder. If you are new to 3D, expect a learning curve before scenes come together quickly. Generated suggestions are for reference only, so verify anything that affects professional judgment or important data. Start with a small sample to confirm the output meets your expectations before processing the full batch. Start with a small sample to confirm the output meets your expectations before processing the full batch.