Sunset Alarm – Online Snooze Based on Tonight's Sunset Time
Set an alarm relative to today's sunset (e.g., 30 minutes before). Perfect for evening routines. Uses geolocation (optional).
UD5 Toolkit
Find perfect natural light for photography, outdoor shoots, and golden moments.
Enter location and date to see magic hours.
Set an alarm relative to today's sunset (e.g., 30 minutes before). Perfect for evening routines. Uses geolocation (optional).
Calculate total work hours and pay from time-in/out entries. Supports overtime and breaks. Generate a printable timesheet. All local.
Estimate arrival time with driving duration, breaks, and time zone changes. Plan your road trip precisely.
Based on home and destination time zones, suggests a light exposure/avoidance schedule to reduce jet lag. Educational tool, local only.
Calculate travel time by entering distance and average speed. Add rest stops duration. Get estimated arrival time. Simple travel planner.
Mix sodium hypochlorite with water to get the correct % concentration for soft washing. Safety note.
Estimate curing time for UV resin based on lamp wattage and layer thickness. Avoid sticky finishes.
Estimate how long a battery will last given capacity (mAh/Wh) and load current. Also computes backup time for power banks. Quick and local.
Access the Paint Timing API and display First Paint, First Contentful Paint, and Largest Contentful Paint times. Quick perf check.
Enter total balance and limit to see utilization percentage. See how it affects credit score bands.
See how extra monthly or lump‑sum payments reduce your mortgage term and total interest. Dynamic chart. All local calculation.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Calculate flour, water, starter amounts to achieve a target loaf hydration. Adjusts for starter hydration. Instant local calculation.
Define a set of colors for light and dark themes. Get the CSS custom properties snippet. Toggle live.
Connect to a BLE device and read its Battery Service characteristic. See the charge level in a gauge.
Record start time and track elapsed fast, symptoms, and electrolyte intake. Private, motivational timeline.
A festive, full‑screen countdown showing the exact days, hours, and minutes until December 25th. Snow effect.
Implement a dark/light theme toggle that respects prefers‑color‑scheme. Copy the complete JavaScript and CSS.
Checklist for plein air painting gear based on medium (oil, watercolor, etc.). Don't forget anything.
Create a frosted glass card with background blur, border glow, and shadow. Adjust intensity. Copy the CSS.
Swap between physical and logical properties (margin‑inline vs margin‑left). Live preview with writing‑mode. Internationalize your CSS.
List all resources loaded by the current page and their detailed timing breakdown. In‑browser waterfall.
Generate encrypted passwords for .htaccess basic authentication. Create .htpasswd entries using bcrypt, MD5, or SHA. Server admin utility, local compute.
Drag tasks into a 2x2 grid (Urgent vs. Important or Impact vs. Effort). Visual decision aid. Local.
List your debts and compare the total interest paid using avalanche vs snowball methods. Pick the best strategy.
Manipulate CSS values as typed objects using attributeStyleMap. Convert between CSSUnitValue, CSSMathSum, etc. Futuristic CSS‑in‑JS.
Get a random, unique superpower with a detailed description and limit. Perfect for character creation or daydreaming.
Reset native styling on form elements with appearance: none. See before and after. Essential for custom forms.
Write slides in Markdown and instantly preview a web‑based presentation. Export as HTML. Pure frontend.
Log shedding events, note duration, and track humidity to optimize next cycle. Healthy scales.