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Seashore vs Photopea: catalog facts
Seashore	Photopea
Free Free and open source.	Freemium Free with ads; a paid premium plan removes ads and adds features.
macOS	Web
Native macOS interface Layers, brushes and effects for common editing tasks	Opens native Photoshop, XD and Sketch files without those apps installed Runs in any browser with no installation
macOS only Fewer features than professional image editors	Ad-supported unless a paid premium plan is used Performance depends on the browser rather than native app speed
Downloadable app	Web application
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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