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OpenReader vs audiblez: catalog facts
OpenReader	audiblez
Free Free and open source under the MIT licence; cloud TTS providers bill separately.	Free Free to use; the developer accepts sponsorships.
Web, Self-hosted	Windows, macOS, Linux, Command line
Word-by-word highlighting during narration Audiobook export to M4B or MP3	Turns EPUB files into audiobooks locally Graphical interface as well as command line
Needs a separate TTS server or a paid cloud API Several moving parts to deploy, including a compute worker	Requires a Python setup to install Updates have slowed during 2026
Self-hosted	Downloadable app
Open source	Closed source
License: MIT	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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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