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Spline vs Blender: catalog facts
Spline	Blender
Freemium Free tier available; paid plans unlock additional features.	Free Free and open source, funded by donations, sponsorship and the Blender Studio…
Web	Windows, macOS, Linux
Real-time collaboration built directly into a 3D tool Runs in the browser with no install needed	The entire 3D pipeline in one program, including rendering and video editing Two renderers: Cycles for path tracing and Eevee for real time
Advanced features and export options require a paid plan Browser performance can limit very complex scenes	An enormous application with a correspondingly long learning curve Serious rendering and simulation wants a capable GPU
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.