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Csound vs Pure Data: catalog facts
Csound	Pure Data
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Web	Windows, macOS, Linux
Decades of development and a long history in computer music Runs on desktop, mobile, embedded, server and web platforms	Visual patching with no text code needed Real-time audio processing for performance and installations
Sound is made by writing code, which takes time to learn Not a point-and-click audio editor	Patching has a steep learning curve The official site uses a bot-protection challenge that some browser plugins break
Downloadable app, Web application	Downloadable app
Open source	Open source
License not stated	License not stated
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 24, 2026	Official website Full listing and sources Checked September 24, 2026

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