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Xreader vs Scrolex: catalog facts
Xreader	Scrolex
Free Free and open source under the GPL 2.0.	Free Free and open source under the AGPL version 3 or later.
Linux	Linux
Opens many formats including DjVu, XPS and comic archives Actively maintained by the Linux Mint team	Horizontal page layout suited to wide screens Optimized for HiDPI displays
Linux only Some formats depend on optional backend libraries being installed	Viewer only, with no editing or annotation tools mentioned Small single-developer project
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: AGPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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