UD5 Toolkit
Web Notification Tester - Online Permission & Display
Check notification permission, request it, and send a test notification. Verify icon, body, and tag. Debug web push.
Web Push Debugger - Online Inspect Subscription & Events
Timesheet Calculator - Online Daily & Weekly Work Hours Tracker
Enter clock-in/out times for each day and see total hours worked, overtime. Calculate weekly pay based on hourly rate. Local storage.
Net Worth Tracker - Online Assets & Liabilities Overview
Log your assets and liabilities to calculate your net worth over time. Data saved only in your browser for security. Simple and clutter-free.
Sleep Debt Tracker - Online Cumulative Sleep Loss Calculator
Log daily sleep to see cumulative sleep debt or surplus over weeks. Visualizes chronic sleep loss trends. Stores data locally in your browser only.
Seasonal Home Maintenance Checklist – Online Fall/Spring Tasks
Select month and get a to‑do list (clean gutters, check weatherstripping). Local storage, printable.
API Status Checker - Online Test Endpoint & Response
Enter an API URL and quickly check its HTTP status code and response time. See response headers and body. Browser fetch.
Reading Log – Online Track Minutes & Books Completed
Simple interface for kids to log reading minutes and pages. Add book titles. Print weekly report. Local.
Notification Permission Checker - Online Manage & Test
See your current notification permission status. Request or reset it. Test browser notification behavior.
Sound Level Meter – Online Measure Room Noise with Mic
Use your device microphone to measure approximate sound pressure level in dB. Not calibrated, for rough reference. Local only.
Mood Tracker - Online Daily Emotion Journal & Calendar
Log your daily mood and view trends on a calendar. Encourages mindfulness. Data stored only in your browser's localStorage for complete privacy.
RV Battery Drain Calculator – Online Estimate Off‑Grid Duration
Enter appliance loads and battery capacity to estimate how long your RV can run without recharging. Local simulation.
Character Counter - Online Letter & Symbol Frequency Tool
Deep-dive into text with detailed character and letter frequency analysis. Supports multiple languages and includes whitespace control. Fast and private.
Light Painting Exposure Guide – Online Estimate Times for Trails
Estimate bulb mode exposure time needed for different light sources and distances. Experimental photography aid.
Duct Tape Sheet Calculator – Online Length for Wallet or Purse
Enter wallet size and get the exact length of duct tape strips needed to build a sheet. DIY crafting.
Timecard Calculator - Online Work Hours & Timesheet
Calculate total work hours and pay from time-in/out entries. Supports overtime and breaks. Generate a printable timesheet. All local.
Rent vs Buy Breakeven Calculator – Online Simple Comparison
Compare renting to buying a home by entering price, rent, interest, and years. See which saves more. Simplified model.
Password Strength Checker - Online Meter & Analyzer Tool
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.
Speech Live Counter - Online Count Spoken Words
Speak into the mic and see a live transcript with word count. Uses the Web Speech API. Nothing is stored.
Sentence Counter - Online Count & Analyze
Paste text to accurately count sentences, average sentence length, and longest sentence. For editors and writers.
Bird Harness Size Guide – Online Measurement & Fit
Enter your bird species and weight to find the correct harness size. Visual adjustment guide.
Audio Loudness Meter - Online LUFS & RMS Analyzer
Measure the integrated loudness of an audio file in LUFS and RMS. Check if your music meets streaming platform standards. Client‑side.
Mortgage Calculator - Online Home Loan & Amortization Tool
Estimate monthly mortgage payments with amortization schedule. Input loan amount, interest rate, and term. All calculations performed securely on your device.
Credit Card Utilization Calculator – Online Ratio & Score Effect
Enter total balance and limit to see utilization percentage. See how it affects credit score bands.
Pom‑Pom Yarn Calculator – Online How Many Wraps for Size
Enter desired pom-pom diameter to estimate yards needed and number of wraps. Quick craft math.
Blanket Size Chart – Online Crib, Throw, King Dimensions
Reference for standard blanket and afghan sizes in inches and cm. Perfect for knitters and crocheters.
Posture Reminder Timer - Online Sit Up Straight Alert
Set a recurring timer that reminds you to check your posture. Desktop notification with a gentle chime. Stay healthy.
Paper Towel Consumption Estimator – Online Weekly Roll Use
Track how many rolls you use per month. Input sheet count to find cost per sheet. Reduce waste.
Mortgage Overpayment & Amortization Calculator - Online
See how extra monthly or lump‑sum payments reduce your mortgage term and total interest. Dynamic chart. All local calculation.
Work Duration Calculator - Online Hours & Minutes Sum
Add a list of time intervals (hh:mm) and get the total duration instantly. For timesheets or music playlists.
Diaper Size Finder - Online Weight-Based Size Guide
Enter baby's weight in lbs or kg to see suggested diaper sizes across major brands. General reference, no data collected.