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Rive vs Synfig Studio: catalog facts
Rive	Synfig Studio
Freemium Requires signing up; the research does not detail plan prices.	Free Free and open source under the GPL.
macOS, Web, Command line	Windows, macOS, Linux
Design, animation and interactivity in one editor Open-source runtimes for many platforms and engines	Automatic tweening between keyframes, so you do not draw every frame Bones and skeletal distortion for cutout-style character animation
Account required to use the editor The editor itself is not open source	A steep learning curve; the parameter and linking system is not intuitive Stability and rendering speed are long-standing complaints
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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