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Playhouse vs CodePen: catalog facts
Playhouse	CodePen
Free Free and open source under the GPL-3.0 licence.	Freemium Free to use, with paid plans for additional features.
Linux	Web
Local alternative to online web playgrounds Simple setup through Flathub	Live preview of HTML, CSS and JavaScript as you type Nothing to install
Linux only Small project with a short commit history	Needs an internet connection Suited to small demos rather than full projects
Downloadable app	Web application
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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