Your offline survival guide and toolkit

Be ready before you need to be.

Survival Sensei puts step-by-step emergency guides, a full survival library, offline maps, calculators and a record of everything you have on devices you own. Learn the skills here, then carry it all with you. It keeps working when the internet and power don't.

01 · LEARNFree coursesShort video lessons and checklists by topic.

02 · EQUIPYour Command CenterSurvival tools, supplies, kits, maps and Emergency Mode.

03 · CARRYOffline SyncCopy it to your phone, a tablet, a USB drive or a Home Base.

How offline works

Free account. No credit card. Only the offline version costs money.

Free courses

Learn it step by step.

Short video lessons, quick quizzes and a checklist to finish at home. 14 topics, a badge for every course, and progress that follows you to any device.

Start the beginner path Browse courses

Purifying water 3 waysWater · 5 lessons

Stop the Bleed basicsMedical · 6 lessons

Running a generator safelyPower · Badge earned ✓

Watch

Swipe through what works.

Short videos from channels we trust, shuffled into one feed. Save any video to watch offline later.

Open the feed

Your Command Center

Know exactly what you have.

Track supplies and expiration dates, build kits, map your caches and size your power. Then sync it all to your devices.

Open Command Center See how it works

Explore by topic

Pick where you want to start. Every topic has free courses, guides and tools.

Start here

Preparedness basics

Food & water

Shelter & survival

Power & energy

Health & safety

Communications

Home resilience

Family preparedness

Tools & gear

Quick reference

Print the emergency binder →

The numbers to know when the power goes out. Tap one to open it full size, save it or print it.

Build your kit Download checklist

Watch

Open the feed →

Short videos from channels we've picked, shuffled into one feed. Swipe through, save the ones you want offline.

Learn it step by step

Browse all courses →

Free courses in 14 topics, each one a set of short video lessons, quick quizzes and a checklist to finish at home. Your progress saves as you go, you earn a badge for each course, and you can pick up where you left off on any device. Pick a topic to start.

Popular courses

All courses →

Asked this week

Community →

Offline Sync

Your plan, on your devices.

Do inventory on your phone in the shed with no signal. Sync later on the laptop. Keep a full copy on a USB drive or a Home Base in the basement for when the internet is down.

See how sync works

DevicesStatus

Phone app14 changes waiting

LaptopUp to date

Home Base · basementSynced 9:02 AM

One small step a week

A short email each Sunday: one task sized to your budget, one video, one question from the community.

The Dojo · Courses

The beginner path

Every course is free. Six stages, in the order that protects you fastest. Each stage unlocks a readiness level in your Command Center.

Water Preparedness Academy cover: a water drop over mountains and a lake

New · Level 1 freeWater Preparedness Academy5 levels, 32 short lessons: plan, store, find, purify and sustain your household's water.Open the academy →

Courses

Mockup: on the live site each card plays the video in place, trimmed to the start and end times set in admin. Scroll, swipe or use ↑ ↓ to flip.

Community

Vote for the answers that actually work. The top answers are reviewed and added to the Library.

Shared kits

See them in Watch →

Gear lists members built in the Kit Builder. Vote, suggest items, or copy one into your Command Center.

Digital Prep

When the internet goes, your stuff shouldn't.

Movies for the kids, your documents, maps, manuals and photos, all on hardware you own and can power from a battery.

Your digital kitRuns offline

Media server (Plex or Jellyfin)Home wifi

Offline Wikipedia and manuals (Kiwix)Any device

Document backupsUSB + safe

Offline mapsPhone

Mesh texting (Meshtastic)No cell needed

Topics

Digital Prep videos

Digital readiness checklist

0 of 8

What is the Command Center?

Your offline survival guide and toolkit.

Step-by-step emergency instructions, a full survival library, offline maps, calculators, Emergency Mode and a record of everything you have, all on devices you own. When the internet, cell towers or power go down, your Command Center keeps working.

100% free onlineNo subscriptionNo ads or trackingWorks with no internet

Choose your setup

How it works

Learn and prepare while things are normal. When they aren't, your guides, tools and supplies list are already on your devices.

✎STEP 1

Set it up

Answer a few questions, take the risk check, and start tracking supplies and kits. Free courses fill the gaps.

⇣STEP 2

Put it on a device

Unlock offline once for $20 and install it on your phone, tablet or laptop, or plug in a Home Base for the whole house.

⇄STEP 3

Sync now and then

Tap Sync when you're online. Your devices stay current with each other and with the latest library updates.

⚑WHEN IT MATTERS

Open it anywhere

No internet needed. Emergency Mode, your supplies, maps, family plan and the full library are all there.

What's inside

Everything below works offline once it's on your device. Library content is open-licensed or public domain, and you choose which packs to download.

Survival tools

Readiness dashboardScores for 12 topics and your readiness level

Supplies and rotationQuantities, costs, locations, expiration alerts

Kit builderGo-bag, get-home, car and everyday carry

Cache mapStash locations, PIN-locked, device only

Family planContacts, meeting points, medical notes

Emergency ModeStep-by-step lists for outages, tornadoes, evacuations

NEWGarden plannerGrid out beds with correct spacing, planting dates and yield

NEWWater plannerWeekly garden water, rain barrels and roof catchment

Knot guideStep-by-step knots with a practice mode

Van and camper plannerPower, water and payload for a mobile setup

Knowledge library

WikipediaFull offline copy, with images or text-only

Medical referencesFirst aid and medical wikis and field guides

How-to guidesWikiHow and iFixit repair guides

Ready.gov and FEMAOfficial preparedness guides and checklists

Classic booksFarming, cooking and homesteading from Project Gutenberg

OURSCommand Center coursesOur lessons, PDFs and the videos you saved

Communication

Repeater directoryHam and GMRS repeaters for your state

NOAA weather radioFrequencies and stations near you

Family comms cardWho calls whom, channels and check-in times

NEWMorse codeTranslate, practice with a key, and send by sound, screen flash or vibration

Maps and tools

Offline mapsStreet and topo maps by state

CalculatorsWater, food, generator fuel, solar and battery

Your filesScanned IDs, insurance and manuals, encrypted

HOME BASEMedia folderMovies and shows for the family, served on its wifi

Updates

Free updates. Always optional.

When you're online, tap Sync and your devices pull the latest app version, map updates and library refreshes. Nothing updates without you, and a device that never goes online again keeps working exactly as it is.

Free, unless you take it offline

Every course, video, tool and planner on this site is free to use online. Pay once only if you want it to work without internet. Home Base is the only hardware we sell. No subscriptions, ever. Example pricing

Image: phone, tablet and laptop showing the Command Center (prompt 1)

Online

Free

Learn, plan and track in your browser.

All courses, videos and the community
Your Command Center in the browser
Risk check, weekly plan, supplies and kits
Calculators and the garden planner
Printable PDF binder

Image: phone and USB drive running the Command Center during an outage (prompt 2)

Offline · most popular

$20 one time

Everything works with no internet, on every device in your household.

Start with

One purchase covers all your devices
Offline Sync between them
Full survival library and your state's maps
Emergency Mode, cache map, garden and water planners
Free updates for life

Add a preloaded 256GB USB drive +$25
Ships with the apps, library and maps already on it

Image: small aluminum Home Base box on a shelf with phones around it (prompt 3)

Home Base · whole house

$249 one time

Plug it in and every phone in the house can open your Command Center and the library over its own wifi.

Raspberry Pi 5 with a 512GB SSD
Its own wifi for up to 20 devices
Offline version included for all your devices
Full library and your state's maps
Room for your family's movies
Runs on a power bank or solar

See Home Base →

Which one is right for you?

	Online	Offline	Home Base
Cost	Free	$20 once (+$25 for a USB drive)	$249 once
Works with no internet	No	Yes	Yes
Devices	Any browser	All your devices	Whole house, over its own wifi
Hardware	Yours	Yours, or our USB drive	Included
Setup	Sign up	Install the app	Plug it in
Best for	Learning and planning	Your phone and laptop in an outage	The whole family in an outage

Technical specifications

Home Base

Computer: Raspberry Pi 5, 4GB
Storage: 512GB NVMe SSD
Case: Aluminum, fan-cooled
Wifi: Own hotspot, up to 20 devices
Ports: 2× USB 3 for extra drives, Ethernet
Power: USB-C, about 5–8 W in use
Warranty: 1 year

USB drive add-on

Capacity: 256GB, USB 3 with USB-C adapter
Preloaded: Windows, Mac and Linux apps, Raspberry Pi image, library and your state's maps
Case: Metal, with keyring
Updates: Plug into any online computer and tap Sync

Accessories

Available at Tiny Survival Kits.

Faraday bagShields Home Base, a phone or drives from EMP and solar storms

Power bank, 20,000 mAhRuns Home Base for roughly 10 hours

Folding solar panelRecharges the power bank in the sun

Hard caseWaterproof case for the go-bag or truck

Our promises

Built for people who don't share their plans.

◐PrivateNo ads, no tracking. Medical notes and plans are encrypted. Cache locations never leave your device.

⌁Works anywhereNeeds only power. No internet, no account check.

＋ExpandableAdd drives, library packs and your own files.

↻Free updatesOptional, and never required to keep working.

✓Open foundationsBuilt on Raspberry Pi and Kiwix, proven open-source tools.

Reviews and press go here Reserved for real quotes from early users, podcasts or reviewers, plus an unboxing video, once you have them.

Questions

What's free and what do I pay for?

Everything online is free. A one-time $20 unlocks the offline version on all your household's devices. Home Base is the only hardware we sell. No subscriptions.

Do I need the internet to use it?

Only to set it up and to sync. After that it works with no connection at all.

Can my family use it?

Yes. Each person can use the app on their own phone, and Home Base serves everyone on its wifi at once.

I already have a Raspberry Pi or an old laptop. What do I need?

Choose Offline and start with "Raspberry Pi or old PC." You get the same software that runs Home Base and can serve your whole house.

What if your website shuts down?

Your devices keep working. Nothing on them depends on our servers.

Two minutes to set up. Free to start.

Answer three questions and get your first week's plan.

Survival Sensei Home Base

When the power and the internet go down, your family still has every answer.

Home Base is a small box that keeps your survival guides, offline maps, family plan and supplies list running on every phone in the house. No internet. No cell signal. No subscription.

Order Home Base · $249 See how it works ↓

One-time priceNo subscription, everWorks with no internetYour data stays in your house

Your phone is a brick the moment the towers go down.

Storms take out power and cell service together.

Ice storms, tornadoes, floods and wildfires knock out power and the cell network at the same time, often for days.

Everything you’d need is online.

How to purify water, how long the freezer stays safe, where the nearest shelter is: all of it lives on websites you can’t reach.

Paper binders go stale.

They don’t update, don’t search, don’t keep counts, and the one copy is never in the room where you need it.

Plug it in. Scan the code. That’s it.

No apps to install, no accounts on the box, no tech skills.

⏻STEP 1

Plug it in

Put Home Base on a shelf and plug it into the wall, a USB power bank, or your car. It makes its own Wi-Fi.

▦STEP 2

Scan the QR code

Every phone and tablet in the house joins Home Base Wi-Fi with one scan of the label. Guests can join too.

☰STEP 3

Open it in the browser

Your whole Command Center opens on every phone at once: library, maps, plans, supplies, kids, everything.

When you do have internet, Home Base quietly syncs with your free online account, so everything you change on the website shows up at home, and the other way around.

Everything your family needs, on every phone, with no signal

📚A full survival library

Guides, courses and PDFs on water, food, first aid, power, heat, shelter and more. Search every page of every PDF in a second.

🗺️Offline maps of your area

Real street maps of your state stored on the box. Find the nearest hospital, water, shelter, fuel and fire station with distance and direction. Mark rally points and routes.

🥫Supplies and Supply Runway

Track water, food, fuel and medicine by the bottle, can and barrel. See exactly how many days each lasts, what runs out first, and how to ration it.

🔔Family Roll Call and alerts

Everyone marks where they are. Ring the Bell sends an alert with sound to every phone in the house: “Storm coming, basement now.”

⏱️Shared timers

Generator refuel, medicine, boil water. Set it on one phone, every phone sees it, and the person it’s for gets the alarm.

🧒A kids’ area that keeps them learning

School lessons for kindergarten through 8th grade, safety skills by age, games and a calm corner. Kids Mode locks a tablet to it with a screen-time limit.

🩺Records when you need them

Emergency contacts with everyone’s medical basics, a medication log that prevents double doses, and a PIN-locked Grab File for documents.

🧮Calculators and garden planner

Water, food, propane, generator fuel, solar and firewood calculators, plus a garden planner for every bed you have, indoors and out.

🖨️Print your emergency binder

One tap prints a binder with contacts, medical info, your family plan, supplies, food safety and first aid, so you have paper too.

What a three-day outage looks like with Home Base

Hour 0
The storm hits and the power goes out.
You tap Power out. Ring the Bell sends “Everyone to the basement” to every phone. Roll Call shows the kids are home and Dad is still at work.
Hour 4
The fridge timer runs out.
Home Base tells you which food is still safe and how long the freezer has left. The generator timer reminds you to refuel, outside and away from the windows.
Day 2
Cell service is jammed.
The map shows the closest open shelter and pharmacy with no signal at all. Supply Runway says water runs out first, in 5 days, and how much each person gets to stretch it.
Day 3
The kids are bored and scared.
They do their school lessons, play the arcade games and family trivia across phones, and use the calm corner. You look up how to purify creek water in the library.

Why not just use my phone or a printed binder?

	Phone apps	Printed binder	Home Base
Works with no internet or signal	Most don’t	Yes	Yes
Every phone in the house, at once	One phone each	One copy	Yes
Searchable library and PDFs	Online only	No	Yes
Offline street maps with nearby help	Some	No	Yes
Keeps your supplies and counts up to date	Some	No	Yes
Family alerts and timers without a signal	No	No	Yes
Monthly fee	Often	None	None

Private by design

Your plans stay in your house.

Home Base runs on its own Wi-Fi. Nothing on it needs our servers to work, and cache locations never leave your devices.

No ads. No tracking.

We sell one thing: the box. No subscriptions, no data sales, no ads in front of your kids.

It keeps working, no matter what.

If our website ever went away, your Home Base would keep running exactly as it is.

Home Base

One box. The whole family. No monthly fee.

Home Base, power cable and a printed Wi-Fi label with QR codes
Your full Command Center and survival library, loaded
Offline street maps of your state (pick yours when you order)
Free software and library updates whenever you’re online
Set up for your account before it ships: plug in and go

$249

one timeOrder Home BaseQuestions? Ask in the community.

Questions

Do I need internet for Home Base to work?

No. You only need internet to set it up and when you want updates or to sync with the website. After that it works with none at all.

How many phones can use it at once?

About 8 phones and tablets can join its Wi-Fi at once. Plug it into your router with a cable and any device on your home network can use it.

What does it run on in a blackout?

Any USB power bank, a car charger or a small solar panel. It sips power, so a common 20,000 mAh power bank runs it for many hours.

Do I need to be good with computers?

No. You plug it in and scan a QR code. Everything opens in the phone’s web browser, the same way a website does.

Is there a subscription?

No. You pay once. The website, courses and updates are free.

What about my kids?

Kids get their own area with school lessons by grade, safety lessons by age, and games. You choose their lessons, and Kids Mode keeps a tablet locked to the kids’ area with a daily time limit.

What maps come on it?

Pick your state or area when you order. You can add more areas later from the Maps page whenever it’s online.

Be the family that still knows what to do.

Order Home Base today and have it ready before the next storm.

Order Home Base · $249

Course · 5 levels · 32 lessons

Water Preparedness Academy

Short, practical lessons of 3 to 7 minutes. Start with the basics of how much water your household needs, then work up to finding, treating and producing your own. Level 1 is free.

Start Lesson 1.1 All courses

Editor notes · verify before publishing Admin only

← Water Preparedness Academy

Level 1 · Lesson 1.1 · about 5 minutes

Why Water Comes First

Start here

You turn on the faucet and nothing comes out. Or the water runs fine, but a text from your county says not to drink it.

What would your household run short of first?

By the end of this lesson you'll be able to

Name the common ways a home loses its water or the water becomes unsafe.
Describe how losing safe water affects drinking, cooking, hygiene and sanitation.
Explain why water belongs at the top of your preparedness plan.

Water fails in two ways

1

It stops

Water reaches your tap because something pushes it there. City water depends on treatment plants and pumping stations. Well water depends on an electric pump. When power is out long enough, pipes freeze, a main breaks, or a storm or flood damages equipment, the flow can slow or stop.

2

It becomes unsafe

Sometimes the water keeps flowing but may be contaminated. Your utility or health department then issues an advisory, and the type of advisory tells you what you can still use tap water for.

The three advisories

Advisory	Why it's issued	What to do
Boil water	Germs may be in the water.	Use bottled water, or tap water brought to a full rolling boil, for drinking, cooking, brushing teeth and baby formula. Filtering doesn't replace boiling.
Do not drink	Chemicals or toxins may be in the water.	Use bottled water. Boiling won't make it safe.
Do not use	Any contact may be harmful. These are rare.	Use bottled water for everything, including washing.

Under any advisory, don't use water or ice from a refrigerator dispenser connected to your water line.

This lesson is general preparedness education, not medical or public-health advice. Always follow instructions from your local utility and health department.

←

By the end of this lesson you'll be able to

General preparedness education, not professional, medical or legal advice.

Editor notes · verify before publishing Admin only

Be ready before you need to be.

Learn it step by step.

Swipe through what works.

Know exactly what you have.

Welcome back, Jerimiah

Explore by topic

Quick reference

Watch

Learn it step by step

Popular courses

Asked this week

Your plan, on your devices.

One small step a week

The beginner path

Courses

Community

Shared kits

When the internet goes, your stuff shouldn't.

Topics

Digital Prep videos

Digital readiness checklist

Your offline survival guide and toolkit.

How it works

Set it up

Put it on a device

Sync now and then

Open it anywhere

What's inside

Survival tools

Knowledge library

Communication

Maps and tools

Free updates. Always optional.

Free, unless you take it offline

Which one is right for you?

Technical specifications

Home Base

USB drive add-on

Accessories

Built for people who don't share their plans.

Questions

Two minutes to set up. Free to start.

When the power and the internet go down, your family still has every answer.

Your phone is a brick the moment the towers go down.

Plug it in. Scan the code. That’s it.

Plug it in

Scan the QR code

Open it in the browser

Everything your family needs, on every phone, with no signal

What a three-day outage looks like with Home Base

Why not just use my phone or a printed binder?

Private by design

One box. The whole family. No monthly fee.

Questions

Be the family that still knows what to do.

Water Preparedness Academy

Why Water Comes First

By the end of this lesson you'll be able to

Water fails in two ways

It stops

It becomes unsafe

The three advisories

What goes wrong fast

Why water comes first

Try it: sort the water

Check your understanding

Recap

Do this today

1.2 How Much Water Do You Need?

By the end of this lesson you'll be able to

Check your understanding

Recap

Do this today

Everything here, even when the internet isn't.

Welcome

Getting started

Risk check

Supplies

Kit builder

Offline library