Click Counter - Online Tally & Increment Tool
A large, simple button to count anything. Plus / minus, reset, and save count to localStorage. Works offline.
UD5 Toolkit
Firefox does not currently support the SpeechRecognition API. The tool requires HTTPS or localhost to access the microphone.
Most professional speakers aim for 130–160 WPM for clear, engaging delivery.
A large, simple button to count anything. Plus / minus, reset, and save count to localStorage. Works offline.
Click pads with mouth drum sounds (kick, hi‑hat, snare) to create a beatbox rhythm. Record & playback.
Shows live countdown to major holidays and allows custom ones. Visual calendar. Local browser storage.
Flip a coin and track your full history. See percentage of heads/tails and longest streak. Pure RNG, no bias.
Create a passkey and authenticate using the Web Authentication API. Supports platform authenticators (TouchID, FaceID). No server.
Select your average daily meals and habits to see how much virtual water you consume. Environmental awareness tool.
Build good habits by tracking daily completions. Visualize streaks and progress. Pure browser storage keeps your habit data private and offline-capable.
Answer a few questions about travel, diet, and energy use to estimate your carbon footprint. Awareness tool.
Estimate calories burned for various activities like running, cycling, swimming based on duration and body weight. Informational and motivational.
Enter and track key body circumferences over time. See inch/centimeter changes and chart progress. Local storage.
Commit to 30 days of gratitude. Write 3 things each day, see progress. Data stays local. Mood boost habit.
A digital sticker board where kids can place virtual stickers for completed chores or goals. Encourages positive behavior with no paper waste.
Compare options two at a time and get a final ranking. Systematic way to choose a vacation spot or project.
Request notification permission and create a push subscription. See the subscription object. Learn how web push works.
Write a self-contract with a goal and reward/penalty. Sign digitally, save as image. Stay accountable.
Track odometer readings, distance, fuel fill-ups and compute MPG/L/100km. Data stored in localStorage. Simple expense summary for tax or budgeting.
Measure your waist‑to‑hip ratio and learn about associated health risks. WHR interpretation. Educational only.
Check your Body Mass Index using standard or metric units. Get a health category analysis instantly. Educational purpose only; data stays private.
Enter kayak's maximum capacity and your weight to see remaining capacity for gear. Safety on the water.
Plot your child's height and weight on WHO growth charts over time. Data saved locally for privacy. Visualise growth trajectory.
Estimate the sinker weight needed to hold bottom in current based on line diameter, depth, and current speed.
Answer a short questionnaire based on common deferral criteria (travel, medication, tattoos) to see if you may be eligible to donate blood. Educational only.
Add appliances with typical wattage and hours/day to get weekly kWh and cost. Identify energy hogs.
Calculate BMI for children and teens (ages 2‑19) and see the percentile based on CDC growth charts. Educational only.
Select month and get a to‑do list (clean gutters, check weatherstripping). Local storage, printable.
Enter appliance loads and battery capacity to estimate how long your RV can run without recharging. Local simulation.
Enter regular hours, hourly rate, and overtime hours to calculate total weekly pay. Follows standard 1.5x rule.
Enter amount of kernels and see estimated popped volume. Plan movie night snacks perfectly.
Track how many rolls you use per month. Input sheet count to find cost per sheet. Reduce waste.
Calculate infant weight, length, and head circumference percentiles using WHO and CDC reference data. Visual growth chart and interpretation for parents.