Sources

What is in the library, and under what licence.

Every title the OfflineVault catalogue ships, with its licence, who made it, how big it is and which edition you get. This page is generated from the catalogue itself, so it cannot drift from what the app downloads.

Catalogue 2026.10, 58 items, last published 2026-11-07.

The catalogue

The catalogue is a signed manifest of reference books, document packs, maps and assistant models. Every artefact in it carries a sha256 checksum, and the shelf is refreshed every month with the current edition of each book.

Only material whose licence permits redistribution goes in. The publisher accepts these licences and nothing else, and the table below uses the short names.

• CC0 1.0 Universal (CC0 1.0)
• Public domain (Public domain)
• Public domain, US Government work (17 USC 105) (Public domain (US Gov))
• Creative Commons Attribution 4.0 International (CC BY 4.0)
• Creative Commons Attribution-ShareAlike 2.0 (CC BY-SA 2.0)
• Creative Commons Attribution-ShareAlike 3.0 (CC BY-SA 3.0)
• Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
• GNU Free Documentation License 1.3 (GFDL 1.3)
• Open Government Licence v3.0 (OGL v3.0)
• Open Data Commons Open Database License 1.0 (ODbL 1.0)
• Apache License 2.0 (Apache 2.0)

Creative Commons NonCommercial (CC BY-NC) material is never stored or served by OfflineVault. A paid plan is commercial use, and a NonCommercial licence does not allow it, however useful the book. A few such books (iFixit repair manuals, MedlinePlus (NIH)) are offered another way: the catalogue lists them, the app downloads them from Kiwix's own servers at no charge, checks them against the sha256 Kiwix publishes, and shows them as "From Kiwix". They never carry the Verified mark, and nothing non-redistributable ever passes through OfflineVault.

Most of the books are built and hosted by Kiwix, and most of the words in them were written by the Wikimedia and Stack Exchange communities. Thank you.

Free

Included with the free app. No plan needed. 7 items.

Core

Included with the Core plan, and with Household. 12 items.

Full

Included with Household. 29 items.

Complete

Included with Household. The biggest items; they want an external SSD. 10 items.

Not included, and why

Some of the best-known offline collections are not here because their licences forbid it, or because nobody can say what their licence is. Where Kiwix publishes such a book, the app offers it as a download from Kiwix instead (see above); the rest are listed here with the reason.

• wikiHow. CC BY-NC-SA 3.0, and Kiwix no longer publishes a wikiHow ZIM (no entry in the Kiwix library, 2026-10-31); offered from Kiwix if one returns.
• Post-disaster collection (Kiwix zimgit). zimgit collection without a licence field; holds Hesperian (CC BY-NC-SA) and commercial titles.
• Medicine collection (Kiwix zimgit). zimgit collection; holds Hesperian titles and Ethicon's Wound Closure Manual.
• Water collection (Kiwix zimgit). zimgit collection; 'Water' and 'Water Treatment' by 'Various' have no licence; EPA sheet moved to docs-field-medicine-water.
• Food preparation collection (Kiwix zimgit). zimgit collection; holds the BSA Philmont Trail Cookbook and commercial Dutch-oven cookbooks.
• Knots collection (Kiwix zimgit). zimgit collection; holds Adamides' Knots and Gibson's Handbook of Knots and Splices (copyrighted).
• CD3WD. compilation of FAO/NGO material, often NC; licence unverified.
• Low-tech Magazine. no licence string on the site; widely reported CC BY-NC-SA.
• Project Gutenberg fiction. Kiwix has no fiction subset; English and American literature ship as zim-gutenberg-lit-english / -american (complete).
• USDA FSIS food safety. fsis.usda.gov rate-limits the crawler (2026-10-20: 138 of 144 pages failed, 22 navigation pages captured); food-safety guidance ships in the Field Guide until a throttled crawl works.

How to check

The manifest is signed with the OfflineVault content key, and every artefact carries a sha256 that the app checks after download. The app shows Verified only for items from the official catalogue. The app and its engine are GPL-3.0, so you can read how the check works and run it against your own content. See the terms for what a plan buys.