Education & research
Organize an e-book library, edit book metadata, and convert supported book formats.
calibre is free and open source. The application has no subscription fee; optional services and third-party resources may have separate costs.
Download from the official project.
Selected options, checked 13 November 2026. Confirm current terms with the provider.
Keeps a book collection searchable.
The application is free and open source.
Conversion quality depends on the source file.
Check the result on your target reading device.
Import a small selection and standardize author names and tags before adding a large collection.
Preview converted books, particularly tables and images, before replacing or distributing a copy.
calibre is free and open source. The application has no subscription fee; optional services and third-party resources may have separate costs.
Different formats handle layout differently. Preview representative pages after converting.
Use the provider link on this page. Billing period, location, team size, promotions, taxes, and optional extras may affect the amount you pay.
Choose tools for the same task, then compare their feature limits, platform support, and total cost for your team. The Compare button helps you keep a shortlist.
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Collect references, annotate research, and generate citations and bibliographies.
