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
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 timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Timer that reminds you to look at something 20 feet away for 20 seconds every 20 minutes. Customizable intervals and subtle sound/visual alerts.
Set a reminder to change smoke detector batteries every 6 months. Optional sound alert and visual countdown. Local browser notification, stay safe.
A sequence of digits flashes for a few seconds. Type it back. Increase length. Improve your working memory.
Set a date when a new fish arrives and get a daily checklist for observation. Countdown to safe introduction.
Select species and see ideal humidity range. Set a reminder to mist enclosure. Keep scales healthy.
Simulate an earthquake alarm with a countdown and visual instructions for Drop, Cover, and Hold On.
Timer to remind you to limit shower water exposure even with a cast cover. Keep your cast dry.
Write a short note and set a specific time for a browser notification reminder. Great for quick one‑offs. Local.
Load a video and visually check if audio aligns with lips. Use frame‑by‑frame stepping. Debug playback issues.
Log your daily water consumption with one click. Set a goal and track progress. Data stored locally for privacy. Simple and clean interface.
Browse a collection of common bird calls. Play short audio samples to identify birds you hear. Educational static data.
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Paste email headers or body text to quickly spot phishing signs, suspicious domains, and obfuscated links. Educational and private.
Enter hiding places and get a set of rhyming clues to print. Fun for kids' parties.
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Record a short audio or video snippet and get a shareable link (stored locally in browser, no server). For quick feedback.
Keep a simple list of movies you want to watch. Add notes and check them off. Purely local storage.
Calculate the real monetary cost of a meeting by attendees' hourly rates. A humorous yet insightful productivity tool. All local calculation.
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
Quick reference for what to do (and not do) after a snake bite. Pressure immobilization bandage diagram.
Display current time for multiple cities worldwide. Add and remove locations. See day/night indicator. Lightweight and always accurate.
Full scientific calculator with history tape, memory keys, and unit conversions. All in your browser, no install.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Remove silent parts from an audio recording. Useful for podcasts and lectures. Set threshold and minimum silence duration.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
Strip dangerous HTML tags and attributes (scripts, onclick) to prevent XSS attacks. Safe iframe preview. Local sanitation engine.
Flashcards for learning Braille. See the dot pattern and type the letter. Track your speed and accuracy. Accessibility education.