Posture Reminder - Online Sit Straight Alert & Timer
Set recurring audio/visual reminders to check and correct sitting posture. Adjustable interval and notification style. Helps reduce back pain from desk work.
UD5 Toolkit
Follow the 20-20-20 rule effortlessly
Set recurring audio/visual reminders to check and correct sitting posture. Adjustable interval and notification style. Helps reduce back pain from desk work.
Set a recurring timer that reminds you to check your posture. Desktop notification with a gentle chime. Stay healthy.
Set a nap timer with optional gentle white noise or lullabies (Web Audio). Reminder to put baby down. Fully local, no ads.
Set a 20, 30, or 45‑minute countdown to simulate a technical interview. Hidden/unhidden. Boost your prep.
Tap key for 15 seconds, calculates BPM. Quick resting heart rate check. Manual, no hardware.
Generate a sample sleep schedule for babies 0-24 months based on age-appropriate wake windows. Nap count and bedtime suggestions. Educational reference.
Enter completed chores/reading minutes to calculate earned screen time. Customizable rates. Local tracking.
Set timer for incubation period with temperature guide. Track hours for optimal tanginess. Homemade yogurt.
Toggle a screen wake lock to prevent the device from dimming or sleeping. See the lock state and learn the API.
Pick target areas (neck, back, legs) and generate a 5‑min stretch routine with illustrated steps. Local.
Log which family member takes which medicine and when. Reminders for next dose. Data stays local.
Visual and audio beat at 100‑120 compressions per minute. 30 compressions timer. For training and emergencies.
Countdown timer with alerts for boiling pacifiers, bottles, or pump parts. Follow recommended times. Local audio alarm.
Wait for the box to turn green, then tap as fast as possible. Measure milliseconds. Compete with friends.
Observe your cat after giving catnip and mark behaviors. See if they carry the gene. Fun science.
Request and release a screen wake lock to keep the device awake. See the lock state in real time. Perfect for recipes or presentations.
Understand teething order, typical symptoms, and safe relief methods. Charts and tips for new parents. Educational, not medical advice.
Select an emoji that matches your mood and log it to a simple calendar. Self‑awareness tool. Local only.
Convert English text to Braille (Grade 1 and simple Grade 2 contractions). Educational tool to understand Braille representation. Local only.
Get a random UI challenge (e.g., 'Design a checkout flow for a plant shop') to practice your skills. All local.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
Play a frequency sweep from 20Hz to 20kHz. See where your hearing cuts off. Headphones needed.
Enter a phrase and instantly generate spoonerisms by swapping initial consonants of words. Silly linguistic fun. Fully local processing.
Enter Braille dot numbers (1‑6) or paste Unicode Braille to decode into English text. Companion to text‑to‑Braille.
Paste text and see a sorted count of all emojis used. Find your most‑used emoji. Fun analytics. All local.
Evaluate password strength through a short interactive story where each character set adds lines to a narrative. Educational fun.
Listen to and practice the international distress signal: three short blasts. Lifesaving knowledge.
Enter your altitude to adjust canning processing times or pressure. Prevent botulism. Based on USDA guidelines. Essential for home canners.
Tap any key to measure beats per minute. Displays average BPM and beat interval in milliseconds. Essential for DJs and music production. No extra permissions.
A simple 5x5 or 7x7 crossword with clues. New one daily or generate random. Works offline.