Work Break Reminder - Online Eye‑Care & Stretch Timer
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
UD5 Toolkit
Follow the 20-20-20 rule effortlessly
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Set recurring audio/visual reminders to check and correct sitting posture. Adjustable interval and notification style. Helps reduce back pain from desk work.
Timer to remind you to limit shower water exposure even with a cast cover. Keep your cast dry.
Simulate an earthquake alarm with a countdown and visual instructions for Drop, Cover, and Hold On.
Set a reminder to change smoke detector batteries every 6 months. Optional sound alert and visual countdown. Local browser notification, stay safe.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Calculate the correct series resistor for an LED based on supply voltage, LED forward voltage, and desired current. Circuit diagram shown. Local only.
Log your daily water consumption with one click. Set a goal and track progress. Data stored locally for privacy. Simple and clean interface.
Write a short note and set a specific time for a browser notification reminder. Great for quick one‑offs. Local.
Set a meditation duration with optional interval chimes. Soothing bell sounds at the start and end. No ads.
See the current UV index forecast or enter a value to learn protection needed (SPF, hat, shade). Educational.
Select species and see ideal humidity range. Set a reminder to mist enclosure. Keep scales healthy.
Set a date when a new fish arrives and get a daily checklist for observation. Countdown to safe introduction.
Quick reference for what to do (and not do) after a snake bite. Pressure immobilization bandage diagram.
Need a reason why you are late or the build failed? Get a hilarious, tech‑themed excuse. Pure fun for dev teams.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
A complete reference of HTTP status codes with explanations. Search and filter by code or category. Useful for API developers and web debugging. Static and fast.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Calculate the real monetary cost of a meeting by attendees' hourly rates. A humorous yet insightful productivity tool. All local calculation.
Load a video and visually check if audio aligns with lips. Use frame‑by‑frame stepping. Debug playback issues.
Paste response headers string and get a security audit. Check presence and configuration of key security headers. Local analysis.
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
A sequence of digits flashes for a few seconds. Type it back. Increase length. Improve your working memory.
See the current AudioContext state (suspended, running). Resume it with a button. Understand autoplay policies.
Interactive checklist to build an emergency go-bag. Covers water, food, first aid, tools, documents. Track progress locally. Essential for disaster preparedness.
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Keep a simple list of movies you want to watch. Add notes and check them off. Purely local storage.
Explore all Intl APIs: NumberFormat, DateTimeFormat, RelativeTimeFormat, ListFormat. See outputs for any locale. Powerful i18n.
Quick eligibility estimator for Canadian GST/HST credit and climate action incentive based on income and family size. For informational purpose only.
Enter total bill, tip %, tax amount, and number of people. Instantly see what each person owes. Handles uneven splits too. No data saved.