Campfire Building Layout Guide β Online Teepee, Log Cabin, Leanβto
Animated demonstrations of different campfire lay styles (teepee, log cabin, star). Choose the right one for wind and cooking.
UD5 Toolkit
Animated demonstrations of different campfire lay styles (teepee, log cabin, star). Choose the right one for wind and cooking.
Enter number of people and desired duration to estimate the minimum square footage and ventilation CFM for a residential storm shelter.
Go through a room-by-room checklist to identify trip hazards. Print and fix. Prevent accidents.
Checklist of essential supplies for a tornado safe room. Print and prepare before storm season.
Type a list of items to find and generate a printable checklist with checkboxes. Great for parties.
Randomly picks an indoor activity from a curated list sorted by age. No materials, no prep ideas included. Banish boredom.
Build a categorized list of possessions with value, serial number, and photo (local). Export for insurance purposes. Private.
Enter height and get fall time and impact speed. Simple physics demo. Good for students.
Enter appliance usage and see estimated monthly energy consumption. Identify high usage areas.
Fill in feeding, walking, medication details and generate a clear care sheet for your pet sitter. Print or share.
Calculate how many gallons of water to store based on household size and days. Preparedness aid.
Measure your yard and calculate how many rolls or square feet of artificial grass you need. Includes waste factor for cuts and seams.
Select bird species to see recommended maximum bar spacing to prevent escape or injury. Quick reference.
Learn about the International Scale of River Difficulty with animations and description of each class.
Enter skin type and UV index to estimate time to sunburn. Visual countdown reminder to reapply sunscreen or seek shade. Educational only.
Run Conway's Game of Life on a canvas grid. Draw patterns, start/stop the evolution, and adjust speed. A mesmerizing zeroβplayer simulation.
Enter a first name and guess the approximate age based on historical popularity data. Purely statistical fun.
Convert pet age to human years using updated AVMA guidelines (not simple 7:1). Separate calculators for dogs (size-dependent) and cats. Fun & educational.
Extract and view EXIF data from photos including camera settings, GPS location, and timestamps. All metadata read locally, your photos stay private.
Select your latitude and day of year to see sun path and identify spots with the most direct sunlight for solar garden lights. Simple visual tool.
Enter a city name to fetch its current Air Quality Index from public APIs. Color-coded health warning. No login.
If device has ambient light sensor, estimate lux level and recommend plant types. Local only.
Find your exact age in years, months, and days. Calculate the time until your next birthday. All date computations are performed locally and accurately.
Enter target RH and room temp to estimate how often to mist or run a humidifier. Quick reference.
Add realistic rain, snow, or fog to any photo. Control intensity and direction. Download the atmospheric result.
Enter your inseam length to get suggested saddle height using the LeMond or 109% method.
Drag to see how a solar eclipse occurs. Visualize the moon's shadow. Educational and interactive.
Add a realistic animated rain or static rain overlay to your image. Adjust opacity and droplet size. Download final.
View hidden EXIF data (camera model, GPS, date, settings) from any image. Works locally in browser; metadata is never uploaded. Understand your photo details.
Calculate dew point or relative humidity from temperature and the other parameter. Also computes wet-bulb temperature. Meteorology reference.