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PhotoCollage vs Pixlr: catalog facts
PhotoCollage	Pixlr
Free Free and open source under the GPL-2.0-or-later licence.	Freemium Free to use in the browser, with paid plans listed on its pricing page.
Linux	Web
Automatic layout that fills the whole poster Swap photos and adjust borders after generation	Runs in the browser with no install More than 20 editing tools plus a collage maker
Limited to grid-style collages Few editing options beyond layout	Needs an internet connection AI features rely on third-party models
Downloadable app	Web application
Open source	Closed source
License: GPL-2.0-or-later	License not stated
No account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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