Eye Strain Relief Timer - Online 20-20-20 Rule Reminder
Timer that reminds you to look at something 20 feet away for 20 seconds every 20 minutes. Customizable intervals and subtle sound/visual alerts.
UD5 Toolkit
Timer that reminds you to look at something 20 feet away for 20 seconds every 20 minutes. Customizable intervals and subtle sound/visual alerts.
Write a short note and set a specific time for a browser notification reminder. Great for quick one‑offs. Local.
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
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.
Timer to remind you to limit shower water exposure even with a cast cover. Keep your cast dry.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
Log your daily water consumption with one click. Set a goal and track progress. Data stored locally for privacy. Simple and clean interface.
Set a meditation duration with optional interval chimes. Soothing bell sounds at the start and end. No ads.
Load a video and visually check if audio aligns with lips. Use frame‑by‑frame stepping. Debug playback issues.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Quick reference for what to do (and not do) after a snake bite. Pressure immobilization bandage diagram.
A sequence of digits flashes for a few seconds. Type it back. Increase length. Improve your working memory.
Calculate the correct series resistor for an LED based on supply voltage, LED forward voltage, and desired current. Circuit diagram shown. Local only.
Set a date when a new fish arrives and get a daily checklist for observation. Countdown to safe introduction.
Flashcards for learning Braille. See the dot pattern and type the letter. Track your speed and accuracy. Accessibility education.
Interactive checklist to build an emergency go-bag. Covers water, food, first aid, tools, documents. Track progress locally. Essential for disaster preparedness.
Need a reason why you are late or the build failed? Get a hilarious, tech‑themed excuse. Pure fun for dev teams.
Calculate the real monetary cost of a meeting by attendees' hourly rates. A humorous yet insightful productivity tool. All local calculation.
Select species and see ideal humidity range. Set a reminder to mist enclosure. Keep scales healthy.
Keep a simple list of movies you want to watch. Add notes and check them off. Purely local storage.
Strip dangerous HTML tags and attributes (scripts, onclick) to prevent XSS attacks. Safe iframe preview. Local sanitation engine.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Compare time across multiple time zones and find a suitable meeting time. Convert a specific time to various cities. Browser-based and always accurate.
Paste response headers string and get a security audit. Check presence and configuration of key security headers. Local analysis.
Tidy up messy HTML code with our online formatter and beautifier. Indent and clean your markup, preview the output instantly. No data is uploaded, everything runs in your browser.
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Explore all Intl APIs: NumberFormat, DateTimeFormat, RelativeTimeFormat, ListFormat. See outputs for any locale. Powerful i18n.
Create a properly styled 'Skip to Content' link. Customize target and appearance. Essential for keyboard users. Copy the HTML/CSS.
Trim audio files or split into multiple segments using visual waveform. Set start/end markers precisely. Download segments or merged track. Purely browser-based.