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audiblez vs OpenReader: catalog facts
audiblez	OpenReader
Free Free to use; the developer accepts sponsorships.	Free Free and open source under the MIT licence; cloud TTS providers bill separately.
Windows, macOS, Linux, Command line	Web, Self-hosted
Turns EPUB files into audiobooks locally Graphical interface as well as command line	Word-by-word highlighting during narration Audiobook export to M4B or MP3
Requires a Python setup to install Updates have slowed during 2026	Needs a separate TTS server or a paid cloud API Several moving parts to deploy, including a compute worker
Downloadable app	Self-hosted
Closed source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it 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.