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Photopea vs Seashore: catalog facts
Photopea	Seashore
Freemium Free with ads; a paid premium plan removes ads and adds features.	Free Free and open source.
Web	macOS
Opens native Photoshop, XD and Sketch files without those apps installed Runs in any browser with no installation	Native macOS interface Layers, brushes and effects for common editing tasks
Ad-supported unless a paid premium plan is used Performance depends on the browser rather than native app speed	macOS only Fewer features than professional image editors
Web application	Downloadable app
Closed 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 22, 2026	Official website Full listing and sources Checked October 2, 2026

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