UD5 Toolkit
Scavenger Hunt List Builder – Online Indoor/Outdoor Clues
Type a list of items to find and generate a printable checklist with checkboxes. Great for parties.
Rainy Day Activity Generator – Online Indoor Fun for Kids
Rainy Day Activity Generator
Turn a gloomy day into creative indoor fun for kids of all ages!
Frequently Asked Questions
Indoor play encourages creativity, problem-solving, and fine motor skills. It also provides safe alternatives when outdoor play isn’t possible, reducing screen time and keeping children engaged.
Use the Age filter in our generator! Activities are categorized by developmental stages. For toddlers (2-4), focus on sensory and simple crafts. For older kids, more complex challenges keep them interested.
Most activities use common household items. If you’re missing something, get creative! Substitute similar items, or browse our “easy materials” filter for ideas that require only basic supplies.
Click the heart icon on any generated activity card to save it to your favorites. You can view your saved list anytime by clicking the “Favorites” button. Favorites are stored locally in your browser.
Yes! All suggested activities are hands-on and encourage movement, creativity, or social interaction without screens. Use this generator as a launching pad to real-world play.
Rain Overlay Effect - Online Add Rain to Photo
Add a realistic animated rain or static rain overlay to your image. Adjust opacity and droplet size. Download final.
Photo Weather Effects - Online Add Rain, Snow, or Fog
Add realistic rain, snow, or fog to any photo. Control intensity and direction. Download the atmospheric result.
Campfire Building Layout Guide – Online Teepee, Log Cabin, Lean‑to
Animated demonstrations of different campfire lay styles (teepee, log cabin, star). Choose the right one for wind and cooking.
Family Fire Escape Plan – Online Draw & Print Floor Map
Simple grid canvas to sketch your home's layout and mark escape routes and meeting point. Print for practice. Local only.
Conway's Game of Life - Online Cellular Automaton Simulator
Run Conway's Game of Life on a canvas grid. Draw patterns, start/stop the evolution, and adjust speed. A mesmerizing zero‑player simulation.
Indoor Greenhouse Humidity Calculator – Online Misting Schedule
Enter target RH and room temp to estimate how often to mist or run a humidifier. Quick reference.
Tornado Preparedness Checklist – Online Safe Room Items
Checklist of essential supplies for a tornado safe room. Print and prepare before storm season.
Age Guesser by Name - Online Demographic Fun Tool
Enter a first name and guess the approximate age based on historical popularity data. Purely statistical fun.
Density of Everyday Objects – Online Will It Float?
Select common materials (wood, plastic, metals) and see density chart. Predict floating. Fun science.
Plant Watering Reminder - Online Houseplant Care Scheduler
Set watering schedules for multiple plants with visual alerts. Shows which plants need water today based on last watered date. Data stored locally.
Plant Watering Schedule - Online Reminder & Tracker
Add plants and track when you last watered them. Get a simple visual alert when it's time to water. Local storage.
Indoor Light Meter for Plants – Online Use Ambient Sensor
If device has ambient light sensor, estimate lux level and recommend plant types. Local only.
Home Fall Risk Assessment – Online Checklist for Seniors
Go through a room-by-room checklist to identify trip hazards. Print and fix. Prevent accidents.
Solar Light Sun Exposure Plotter – Online Daily Direct Sun Check
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.
Artificial Turf Calculator – Square Footage & Rolls Needed
Measure your yard and calculate how many rolls or square feet of artificial grass you need. Includes waste factor for cuts and seams.
Daily Space Picture - Online Astronomy Photo of the Day
View the NASA Astronomy Picture of the Day (APOD) directly in your browser. Read the explanation. No API key needed.
Pet Sitting Checklist – Online Generate Care Sheet for Sitter
Fill in feeding, walking, medication details and generate a clear care sheet for your pet sitter. Print or share.
Solar Eclipse Simulator - Online Visualize Totality
Drag to see how a solar eclipse occurs. Visualize the moon's shadow. Educational and interactive.
Succulent Watering Schedule – Online Reminder by Season
Set a custom watering frequency reminder for succulents, with seasonal adjustment. Visual icon. Works offline after setup.
Home Energy Audit Calculator – Online kWh Breakdown
Enter appliance usage and see estimated monthly energy consumption. Identify high usage areas.
Emergency Water Storage Calculator – Online Gallons per Person
Calculate how many gallons of water to store based on household size and days. Preparedness aid.
Wind Chill & Heat Index Calculator - Online Feels Like
Enter temperature and wind speed (or humidity) to get the 'feels like' temperature. Safety guidelines included.
Safe Room Size Calculator – Online Occupancy & Ventilation Check
Enter number of people and desired duration to estimate the minimum square footage and ventilation CFM for a residential storm shelter.
Wilderness Water Treatment Selector – Online Boil, Filter, Tablet
Click through symptoms (murky, clear, bacteria) and get the best water treatment method for backcountry trips.
Periodic Number Table - Online Fun Element‑Number Zoo
Type a word and see which letters can be spelled with atomic symbols (e.g., Co In = CoIn). Fun ciphers.
Dew Point & Humidity Calculator - Online Celsius Fahrenheit Tool
Calculate dew point or relative humidity from temperature and the other parameter. Also computes wet-bulb temperature. Meteorology reference.
River Rapid Class Guide – Online I‑VI Visual Examples
Learn about the International Scale of River Difficulty with animations and description of each class.
Free Fall Calculator – Online Time, Speed, Distance
Enter height and get fall time and impact speed. Simple physics demo. Good for students.
Air Quality Index Lookup - Online AQI by City
Enter a city name to fetch its current Air Quality Index from public APIs. Color-coded health warning. No login.