Small
Available · 7.7 GB download
- 148 PDF documents
- 12,894 PDF pages
- 45 saved web guides
- 41 videos, including 10 on first aid
- 2 encyclopedias
US base map with main roads, towns and water.
What’s in the library
Three library sizes. Everything stays on your computer and works offline.
Medium
Available · 67.5 GB download
- 4,450 PDF documents
- 13 slide decks
- 3,819 saved web guides
- 573 videos
- 3 encyclopedias
US base map plus California detail. Choose your local state map in Mac setup.
All
Available · 387.9 GB download
- 4,451 PDF documents
- 13 slide decks
- 3,819 saved web guides
- 2,324 videos
- 4 encyclopedias
Expanded US maps, more videos and text-only Wikipedia.
Download sizes are rounded. State maps, address indexes and the optional AI are additional downloads.
In every library size
Examples from Small, also included in Medium and All. PDFs include books, manuals and selected chapters.
Injury and illness
First aid, caring for the sick, medicines, teeth, birth and mental health.
- Selected chapters from Where There Is No Doctor and Where There Is No Dentist (Hesperian)
- Basic Emergency Care (World Health Organization)
- MSF Clinical Guidelines and Essential Drugs (Médecins Sans Frontières)
- Videos: hands-only CPR, using an AED, choking, tourniquets
Water and toilets
Make water safe, clean wells and tanks, and deal with waste.
- WHO technical notes on drinking water, wells and toilets in emergencies
- Public Health Engineering in Precarious Situations (MSF)
- Two Ways to Purify Water (National Park Service)
Food
Store, can, dry and freeze food safely, and grow more of it.
- Canning, drying, freezing and pickling guides (National Center for Home Food Preservation)
- Seeds in Emergencies (FAO)
- Videos: water-bath and pressure canning, seed saving
Power, tools and repair
Generators, batteries and solar, small engines, tools and building.
- Generator and engine owner’s manuals (Honda, Generac)
- Solar wiring and battery guides (Victron Energy, US Department of Energy)
- Tools and Their Uses and Wood Handbook
- Videos: welding, small-engine repair, woodworking
Getting ready for a disaster
Plans and checklists for floods, fire, storms, heat, earthquakes and power cuts.
- Are You Ready? and the Emergency Supply Kit Checklist (FEMA)
- Be Prepared and Disaster Preparedness for Older Adults (American Red Cross)
- Weather safety sheets (NOAA National Weather Service)
Radio and finding your way
Emergency radio, maps and compass.
- ARES Field Resources Manual and Quickstart Guide (ARRL)
- Finding Your Way with Map and Compass (USGS)
- Video: How to Use a Compass (REI)
More in Medium and All
Thousands more documents, including course notes, readings, exercises and technical references.
Science and mathematics
Physics, chemistry, genetics, geology, calculus and statistics.
- MIT course materials in quantum physics, thermodynamics and genetics
- Linear algebra, differential equations, probability and statistics
Computing and electronics
How computers and electronic systems work.
- MIT Introduction to Algorithms and Computation Structures
- Circuits, microelectronics and computer-system engineering
Engineering and infrastructure
Materials, heat, fluids and water systems.
- Advanced fluid mechanics and heat-transfer course materials
- Water and wastewater treatment manuals
Making and manufacturing
Tools, materials and production methods.
- Metalworking and materials references
- Ceramics, clothing and textile materials
Transport and equipment
Technical references for operating and maintaining equipment.
- Aviation handbooks, including instructor materials
- Generator, engine and machinery manuals
More video teaching in All
All adds a much larger video collection alongside the documents.
- Science, engineering and practical-skills videos
- Text-only Wikipedia is included in All
Encyclopedias
MDWiki has plain-language articles on conditions, medicines and first aid. Appropedia covers water, sanitation, energy and building projects.
Medium also includes Wikibooks. All adds Wikipedia, without pictures.
These are written by volunteers. They’re good for background. For steps where safety matters, use the guides and manuals.
The map
A map of the whole US with main roads, towns and water. Find a town, ZIP code or place with no signal.
Small includes this US base map. Mac setup also downloads your selected state’s detailed streets, buildings and local places. Available address indexes add offline street-address search. Coverage varies by state. The maps show recorded geography, not live damage, closures or hazards.
Who made it
The guides, videos and books come from the people and groups who wrote them. Each owner keeps all rights in their work.
Set it up now, while you have internet and power.
Then it’s ready when you need it. Free for Mac, Windows and Linux.
Download for Mac Download for Windows Download for Linux
Mac 1.1.8 · 28.5 MB · Windows 1.1.8 · 105 MB · Linux 1.1.9 · 29.9 MB