Published Oct 20, 2026, 3:00 PM EDT
Oluwademilade is a dentist and tech enthusiast with over five years of writing experience. He joined the MUO team in 2022 and covers a wide range of topics, including consumer tech, iOS, Android, artificial intelligence, hardware, software, and cybersecurity. In addition to his work at MUO, his writing has appeared on HowtoGeek, Cryptoknowmics, TechNerdiness, and SlashGear.
Oluwademilade earned a Bachelor of Dental Surgery degree from the University of Ibadan's College of Medicine in Nigeria and has worked in both hospital and private dental practice settings. While at university, he was recognized for his involvement in public service and was named a Global Goals Action Ambassador by a student organization affiliated with the United Nations. He received the recognition in Kuala Lumpur, Malaysia, in 2020 for his work promoting the UN Sustainable Development Goals.
In his free time, Oluwademilade enjoys testing new AI apps and features, troubleshooting tech problems for family and friends, learning new coding languages, and traveling whenever he gets the chance.
I’ve used flash drives for years as glorified pockets for files I’ll probably forget about. Then I loaded Kiwix onto my PC, pointed it at a 16GB stick, and the drive finally got a real job. It now holds a slice of Wikipedia, a Project Gutenberg collection, and room for more reference material that still opens when Windows insists there’s no internet connection.
I already knew about plenty of clever ways to repurpose old USB drives, but carrying around an offline reference shelf has become one of my favorites.
Kiwix makes a small drive quite ambitious
The catalog turns storage into a judgment call
Kiwix is an offline reader built around ZIM files, compressed archives that bundle web content so you can browse it without ever calling the original website. The Windows build I grabbed came as a ZIP, so setup mostly meant extracting the folder and launching kiwix-desktop.exe. The online catalog lets you filter by language, category, and content type, then pick where your downloads land.
In Settings, you can aim the download directory straight at removable storage. I pointed mine at F:, my USB drive, so the ZIM files went directly onto it. If you already carry a portable Windows toolkit on a USB drive, you’ll appreciate how little effort this takes. You choose a collection, download it, and Kiwix adds it to Local Files. Kiwix can also run in a fully portable USB configuration, though I kept the reader on Windows and the library on the stick.
That 16GB ceiling came into play right away. Kiwix offered a full English Wikipedia archive without pictures at 49.07GB and another with pictures at 118.67GB. My little flash drive clearly wasn’t invited to that party, so I went with Wikipedia 100 at 317.98MB and a 12.55MB Gutenberg collection instead.
Kiwix publishes Wikipedia in several sizes for exactly this reason. The mini version keeps article introductions and infoboxes, nopic keeps full articles without images, and maxi is the whole package. According to Kiwix, mini cuts storage by about 95% compared with the full archive, while nopic saves roughly 75%. If you have the storage to spare, you can go much further and keep the entire Wikipedia available offline, just like you can on your phone.
Pulling the Wi-Fi plug is the convincing part
The articles keep behaving like articles
Once the downloads were sitting on the USB drive, I shut off Wi-Fi to see how much of the setup still worked. Kiwix kept both collections under Local Files, and Wikipedia 100 opened with proper formatting, images, infoboxes, and working links. Michael Jackson’s page looked pretty much like normal Wikipedia, and The New York Times article loaded the same way even while my internet was unplugged.
I could’ve dumped a pile of PDFs or saved HTML pages onto the drive, but that would turn the whole setup into a filing cabinet I’d have to babysit. Kiwix keeps the material inside one searchable archive with normal web-style navigation, so I can bounce between articles without thinking about where each file lives. The desktop app renders ZIM content in its own browser-like interface, which makes the whole library much easier to browse than a folder full of random documents.
For a handful of pages you already know you’ll need, the Wikipedia app can save pages for offline reading. Kiwix is better suited to the bigger reference-library role. You can load a collection in advance and decide what to look up later, whether the hotel Wi-Fi has gone on strike, mobile reception is barely hanging on, or you just want the answer without depending on a live connection.
A finite drive makes the library better behaved
Curation keeps the USB from becoming a data landfill
Project Gutenberg kept the USB stick from turning into a one-purpose Wikipedia demo. The small Gutenberg ZIM opened with its own catalog, and from there I could pull up an English-German business dictionary and read it inside Kiwix with Wi-Fi still off. The presentation is pretty bare-bones, almost like an old-school web page, but the text is clean and easy to browse.
The catalog goes far beyond books. During setup I came across programming documentation, Project Euler, Stack Overflow material, TED collections, and other specialist archives. If books are the priority, there are also plenty of websites that provide free books legally, with Project Gutenberg one of the obvious places to start.
There’s some upkeep involved because ZIM files are snapshots. An offline Wikipedia archive won’t refresh itself in the background, and Kiwix says incremental ZIM updates aren’t available. When you want newer material, you replace the old archive with a newer release. A larger flash drive gives you room to get much more ambitious, including the sort of tiny offline internet that can keep reference material available during an outage.
This USB drive finally has a proper job
The little 16GB stick now has a permanent place in my laptop pouch. Most days, Wi-Fi will do the heavy lifting, and Kiwix can sit untouched. When the connection disappears, I can still open an encyclopedia article or pull up a book from storage that weighs less than a house key. For a drive that spent most of its life ferrying screenshots and installers around, that’s a respectable promotion.