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OpenComic vs ACBR: catalog facts
OpenComic	ACBR
Free Free to download, with an optional donation page.	Free Free and open source under the AGPL-3.0.
Windows, macOS, Linux	Windows, Linux
High-quality Lanczos3 downscaling for sharp pages Reading view customizable for comics and manga	Reads common comic archives plus pdf and epub Converts and creates comic books in several formats
ePub and PDF support is basic Focused on reading rather than library management	No macOS version listed AES-encrypted cbz files are not supported
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: AGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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