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.
UD5 Toolkit
Astronomy Photo of the Day — Explore the cosmos, one image at a time
Default: DEMO_KEY (limited to 30 req/hr). Get free key
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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.
Drag to see how a solar eclipse occurs. Visualize the moon's shadow. Educational and interactive.
Extract and view EXIF data from photos including camera settings, GPS location, and timestamps. All metadata read locally, your photos stay private.
View hidden EXIF data (camera model, GPS, date, settings) from any image. Works locally in browser; metadata is never uploaded. Understand your photo details.
Add realistic rain, snow, or fog to any photo. Control intensity and direction. Download the atmospheric result.
Select common materials (wood, plastic, metals) and see density chart. Predict floating. Fun science.
Add a realistic animated rain or static rain overlay to your image. Adjust opacity and droplet size. Download final.
Add plants and track when you last watered them. Get a simple visual alert when it's time to water. Local storage.
If device has ambient light sensor, estimate lux level and recommend plant types. Local only.
Set watering schedules for multiple plants with visual alerts. Shows which plants need water today based on last watered date. Data stored locally.
Enter target RH and room temp to estimate how often to mist or run a humidifier. Quick reference.
Set a custom watering frequency reminder for succulents, with seasonal adjustment. Visual icon. Works offline after setup.
Enter your weight and activity level to get a recommended daily water intake goal. Reminder to drink up.
Randomly picks an indoor activity from a curated list sorted by age. No materials, no prep ideas included. Banish boredom.
Plan your time‑lapse by entering desired clip length, fps, and event duration to find the shooting interval and total frames needed. Avoid under‑ or over‑shooting.
Type a list of items to find and generate a printable checklist with checkboxes. Great for parties.
Compute personalized daily water intake based on weight, climate, and exercise intensity. Converts to common cups/ounces. Purely local with no tracking.
Fill in feeding, walking, medication details and generate a clear care sheet for your pet sitter. Print or share.
Find your exact age in years, months, and days. Calculate the time until your next birthday. All date computations are performed locally and accurately.
Type an element name or symbol and instantly see its key properties (atomic mass, group, electronegativity). Quick reference.
Enter pond dimensions and filtration type to estimate safe number of adult koi. Prevent overcrowding.
Learn about the International Scale of River Difficulty with animations and description of each class.
Enter temperature and wind speed (or humidity) to get the 'feels like' temperature. Safety guidelines included.
Simple grid canvas to sketch your home's layout and mark escape routes and meeting point. Print for practice. Local only.
Visualize real‑time linear acceleration (excluding gravity). Watch the 3D vector graph move as you shake the device.
Measure your yard and calculate how many rolls or square feet of artificial grass you need. Includes waste factor for cuts and seams.
Type a word and see which letters can be spelled with atomic symbols (e.g., Co In = CoIn). Fun ciphers.
Enter a first name and guess the approximate age based on historical popularity data. Purely statistical fun.
Enter skin type and UV index to estimate time to sunburn. Visual countdown reminder to reapply sunscreen or seek shade. Educational only.
Test the modern File System Access API. Open a file, modify it, and save back to disk. All sandboxed in browser.