OfflineVault：一款在断网时可用的离线资料库

A week without power. No bars after the storm. Someone hurt and no one to call. The water, food, first aid, medicine and repair answers you used to search for are already on your Mac, each one with the page it came from, and they work with Wi-Fi off.

Tested on 150 emergency questions. With the default model: 63 fully right, 73 partly right, 4 wrong, 0 harmful. Every wrong answer is published.

LIBRARYChatScenariosReferenceDocumentsMapsVideosSaved pagesMANAGEReadinessBackupShare on Wi-FiOffline · library on external SSDChatQwen3-4B · answers only from your librarySearch library⌘KHow do I make creek water safe to drink?Boil it if you can. If you can't, use bleach. A filter on its own is not enough.1. Boil it for one minute. Above 6,500 feet, boil for three minutes. Let it cool.[1]2. No way to boil: 8 drops of unscented household bleach per gallon, 16 if the water is cloudy. Mix, wait 30minutes.[1]3. Per quart, the Army manual says 2 drops of 5.25% bleach and a 30 minute wait, 60 if cold and cloudy.[2]4. Most portable filters remove parasites, not bacteria or viruses. Filtered water may still need treating.[1]SOURCES[1]Make Water Safe During an EmergencyCDC · Document · page 1Boil your water for 1 minute. At elevations above 6,500 feet, boil for 3 minutes. … Add 8 drops or a little less than 1/8 of a t…[2]ATP 3-50.21 SurvivalUS Army · Document · page 69Place 2 drops of chlorine bleach (5.25 percent sodium hypochlorite) for 1 quart of water and let it rest for 30 minutes. If col…Ask your library How do I make creek water safe to drink?Boil it if you can. If you can't, use bleach. A filter on its own is notenough.1. Boil it for one minute. Above 6,500 feet, boil for three minutes. Let itcool.[1]2. No way to boil: 8 drops of unscented household bleach per gallon, 16if the water is cloudy. Mix, wait 30 minutes.[1]3. Per quart, the Army manual says 2 drops of 5.25% bleach and a 30minute wait, 60 if cold and cloudy.[2]4. Most portable filters remove parasites, not bacteria or viruses.Filtered water may still need treating.[1]SOURCES[1]Make Water Safe During an EmergencyCDC · Document · page 1Boil your water for 1 minute. At elevations above 6,500 feet, boil for 3minutes. … Add 8 drops or a little less than 1/8 of a teaspoon of 5%-9% uns…[2]ATP 3-50.21 SurvivalUS Army · Document · page 69Place 2 drops of chlorine bleach (5.25 percent sodium hypochlorite) for 1quart of water and let it rest for 30 minutes. If cold and cloudy, wait 60 min…

When you'd use it

Each of these is a question you would have typed into a search box. Here is what happens instead.

Is the food in the fridge still safe? The Field Guide article opens first, word for word, with the FEMA page it came from. The assistant's own words come after, in a lighter style.

FROM THE FIELD GUIDE · HUMAN-CHECKEDWhen the fridge stops: food safety in a power cut2. During the outage: keep the doors closed. A fridge keeps food safe forabout 4 hours if the door stays shut. The freezer thermometer tells youwhen its contents have crossed 40 °F.3. Throw away perishable food (meat, poultry, fish, eggs, leftovers,anything that needs refrigeration) that has been above 40 °F for 2 hoursor more, or that has an unusual smell, colour or texture. When in doubt,throw it out. Do not taste to check.[1]Are You Ready?Open pageFEMA · Document · page 31Food in the refrigerator should be safe during a power outage if thepower is out for no more than four hours, and if you kept the door clo…THE ASSISTANT ADDSYes. Two hours with the door shut is inside the four-hour window. Trust thethermometer, not the smell. Someone is bleeding and 911 is not answering.

Ask how to make a tourniquet from a belt. Every step carries a number. Click it and the Army first aid manual opens at that page, with the passage marked.

[2]FM 4-25.11 First AidOpen pageDocument · page 47Place the tourniquet around the limb, between the wound and thebody trunk … Never place it directly over a wound, a fracture, or joint.Medical topic. Read the cited source itself, not only this summary. The phone has no bars.

A child is shivering after a night without heat. Search "hypothermia child" and one list shows the medical article, the manual page and the video you saved. No internet, and no assistant needed.

hypothermia child⌘KHypothermiaReference · WikiMedFM 4-25.11 First AidUS Army · Document · page 124A sign that is noticed immediately is shivering … their speech may be…Cold weather first aidVideo · 14:02when the shivering stops, that is the sign to act, not to relaxHypothermia in childrenSaved page · 2026-08↑↓ select ↩ open ⌘↩ ask the assistant The tap runs dry.

Open the No safe water card. Six steps, each one checked against the CDC page it came from. Tick them off on screen, or print the card before the power goes.

PrintStop drinking from the tap until the notice lifts.Stored water first. One gallon of drinking water per person perday.Boil other water for one minute. Above 6,500 feet, threeminutes.CDC, Make Water Safe During an Emergency, page 1No stove: 8 drops of unscented bleach per gallon, 16 if cloudy.Wait 30 minutes.Fill the bathtub and clean containers while pressure lasts.Label every treated container with the date.

What's on your Mac

Start with the Field Guide. It is free, a person wrote it, and every step names the manual it came from. The reference books behind it are the deep shelf.

Filter booksBOOKSNAPSHOTSTATUSWikipedia · top 50,000 articles2026-09InstalledWikipedia · every article, text2026-09InstalledWikipedia · everything with pictures2026-09AvailableWikiMed2026-10InstalledWikEM2026-10InstalledMDWiki2026-10InstalledUS military medicine manuals2026-08InstalledAppropedia2026-07InstalledReady.gov2026-06InstalledWater treatment2026-05InstalledStack Exchange · outdoors2021-06pre-AIInstalledStack Exchange · ham radio2026-03AvailableCIA World Factbook2026-01InstalledProject Gutenberg · medicine2019-11pre-AIInstalled

Every file is checked after download, and every book shows the month its copy was made. The full list, with the licence of every title, is on the Sources page.

The assistant is a reader, not an expert. It answers only from the books on your Mac, and under every claim it shows the exact passage it read.

[1]FM 21-76 SurvivalOpen pageDocument · page 100Do not eat mushrooms in a survival situation! The only way to tell if amushroom is edible is by positive identification. There is no room fo…

We ask it 150 questions a person might type in an emergency, through the real app, and score the answers with a fixed rule, not another model. The default model got 63 fully right, 73 right but missing a listed fact, 4 wrong and 0 harmful, and it refused 10 of the 10 questions it should refuse. Muse Glimmer 30B, the biggest model Household offers, got 74 fully right and 0 harmful. Every wrong answer is printed in full.

Everything here runs with Wi-Fi off. Run the drill before you need it.

Pan anywhere. Click for coordinates you can read over a radio, or type them to jump. Download street detail for the area on screen, or the whole planet at street level (139 GB).

39.74, -104.99GoMARKER39.74000, -104.9900039°44'24"N 104°59'24"WDownload street detail for this view Videos with transcripts

Keep the channels you trust. The transcript sits beside the player, searchable, and the assistant can quote it.

…eight drops a gallon, then wait.Field water treatment, step by stepSaved 2026-09-14 · 12:40 · subtitles onbleach1 of 16:02Scoop from the surface,away from the bank.6:31If you can boil, boil. One fullminute.6:48Unscented bleach, eightdrops a gallon.7:03Stir, then let it stand thirtyminutes. A drill that proves it

One button checks every book, every file, the maps, the assistant, your backup and your free space, with Wi-Fi off. Anything amber gets a fix button.

HelpersKiwix, llama.cpp, ffmpeg and yt-dlp presentReference booksEvery book opens and answers a searchDocuments and videosEvery file present, checksums matchMapsWorld map renders with no networkAssistantAnswered a library question with a citationBackupLast verified 94 days agoBack up nowFree spaceEnough for the next monthly refreshRosettaInstalled Phones in the house get it too

Switch on Share on Wi-Fi and every phone on your network can read the library from the Mac. Read-only, off by default, included with Household.

ovsync is a small command-line tool, open source like the app. Give it your key and it downloads the same checked library into a folder Kiwix can serve. Without a key it downloads the free shelf.

pipx install "git+https://github.com/nc/offlinevault.git#subdirectory=ovsync" ovsync activate OV-XXXX-XXXX-XXXX-XXXX ovsync sync ~/offlinevault kiwix-serve --port 8080 --library ~/offlinevault/library.xml

It checks every file after download, resumes an interrupted download, and writes a library.xml for kiwix-serve, kiwix-desktop or a phone pointed at a shared drive. The code is on GitHub, with the source page.

Yes, and most of the shelf is Kiwix content. The app is free and open for exactly that. What you pay for is a shelf someone else gathers, checks and refreshes every month, plus the Field Guide, the maps, the videos and a search that quotes the page.

It can be. So we test it on emergency questions through the real app, score the answers with a fixed rule, and publish every wrong one. Today that is 4 of 150 wrong and 0 harmful with the default model. The page it quotes is always one click away. See the results.

Nothing you downloaded is taken away. The books, the maps and the assistant keep working from your drive with no time limit, and you can export all of it. You only stop getting new editions.

The assistant runs on the Mac's own chip, so an answer needs no server and no internet. One app holds the books, the maps, the videos and the search. No Mac? ovsync puts the same library on Linux or Windows for Kiwix.

Nothing you read, ask or search leaves your Mac. There is no telemetry, and the free tier needs no account. The app talks to our servers only to download content, check for an update and confirm a licence key. The whole policy.

The free shelf is about 8 GB. Core adds about 19 GB and fits on the Mac's own drive. The complete library is about 476 GB and wants an external SSD. You pick what to download.

Free is a real option. Core is the one most households need. Either way, everything you download stays on your drive and keeps working, plan or no plan.

The app, the Field Guide, CDC and FEMA preparedness, the US government manuals, MedlinePlus, the iFixit manuals and the world map. No account, no key.

a year of new editions included, then $39 a year only if you want them

a year of new editions included, then $59 a year. Everything in Core, plus

Founder, $299 once, at launch only. Three years of Household, Core for life, your name in the credits. Join as a founder. Already have a key? Refresh it for another year.

New editions stop. That is all. The books, the manuals, the maps and the assistant keep working from your drive, you can export every file, and the free shelf still updates. Want new editions again? Refresh the same key for a year, whenever you like.

Refreshes lapsed. Editions paused. Everything keeps working.Reference booksworkingDocumentsworkingMapsworkingAssistantworkingExport the whole library

Download

The app is free. Install it, run the drill with Wi-Fi off, and decide about a plan after.

Leave your email and the plan you are weighing. One message when there is real news, nothing else.

Yes. After the first download every part runs on your Mac. The Readiness drill is there so you can prove it yourself with Wi-Fi off, before the day you need it.

A new edition of each book, pack and map as its source changes, published monthly. Core and Household include a year of them. After that, $39 a year for Core or $59 for Household keeps them coming, billed yearly on the same key until you cancel. Nothing you downloaded depends on it.