Web Notification Tester - Online Permission & Display
Check notification permission, request it, and send a test notification. Verify icon, body, and tag. Debug web push.
UD5 Toolkit
Check notification permission, request it, and send a test notification. Verify icon, body, and tag. Debug web push.
Enter clock-in/out times for each day and see total hours worked, overtime. Calculate weekly pay based on hourly rate. Local storage.
Log your assets and liabilities to calculate your net worth over time. Data saved only in your browser for security. Simple and clutter-free.
Log daily sleep to see cumulative sleep debt or surplus over weeks. Visualizes chronic sleep loss trends. Stores data locally in your browser only.
Select month and get a to‑do list (clean gutters, check weatherstripping). Local storage, printable.
Enter an API URL and quickly check its HTTP status code and response time. See response headers and body. Browser fetch.
Simple interface for kids to log reading minutes and pages. Add book titles. Print weekly report. Local.
See your current notification permission status. Request or reset it. Test browser notification behavior.
Use your device microphone to measure approximate sound pressure level in dB. Not calibrated, for rough reference. Local only.
Log your daily mood and view trends on a calendar. Encourages mindfulness. Data stored only in your browser's localStorage for complete privacy.
Enter appliance loads and battery capacity to estimate how long your RV can run without recharging. Local simulation.
Deep-dive into text with detailed character and letter frequency analysis. Supports multiple languages and includes whitespace control. Fast and private.
Estimate bulb mode exposure time needed for different light sources and distances. Experimental photography aid.
Enter wallet size and get the exact length of duct tape strips needed to build a sheet. DIY crafting.
Calculate total work hours and pay from time-in/out entries. Supports overtime and breaks. Generate a printable timesheet. All local.
Compare renting to buying a home by entering price, rent, interest, and years. See which saves more. Simplified model.
Evaluate the strength of your passwords with a visual meter and detailed feedback. Check for length, complexity, and breached passwords. All analysis is client-side.
Speak into the mic and see a live transcript with word count. Uses the Web Speech API. Nothing is stored.
Paste text to accurately count sentences, average sentence length, and longest sentence. For editors and writers.
Enter your bird species and weight to find the correct harness size. Visual adjustment guide.
Measure the integrated loudness of an audio file in LUFS and RMS. Check if your music meets streaming platform standards. Client‑side.
Estimate monthly mortgage payments with amortization schedule. Input loan amount, interest rate, and term. All calculations performed securely on your device.
Enter total balance and limit to see utilization percentage. See how it affects credit score bands.
Enter desired pom-pom diameter to estimate yards needed and number of wraps. Quick craft math.
Reference for standard blanket and afghan sizes in inches and cm. Perfect for knitters and crocheters.
Set a recurring timer that reminds you to check your posture. Desktop notification with a gentle chime. Stay healthy.
Track how many rolls you use per month. Input sheet count to find cost per sheet. Reduce waste.
See how extra monthly or lump‑sum payments reduce your mortgage term and total interest. Dynamic chart. All local calculation.
Add a list of time intervals (hh:mm) and get the total duration instantly. For timesheets or music playlists.
Enter baby's weight in lbs or kg to see suggested diaper sizes across major brands. General reference, no data collected.