Everyday Tools That Run in Your Browser
Each tool below was designed to answer one question instantly. Because the calculations happen on your own device, nothing you type is uploaded anywhere — you can close the tab and your text is gone. Pick a tool to get started, and visit the blog for longer guides on getting the most out of each one.
Word Counter
Count words, characters, sentences, and paragraphs as you type, with an estimated reading time. Ideal for essays, articles, and applications with strict limits.
Open tool →Password Generator
Create strong, random passwords up to 64 characters with a live strength meter. Nothing is stored or transmitted — generation happens on your device.
Open tool →Age Calculator
Find an exact age in years, months, and days between any two dates, plus the countdown to the next birthday. Leap years are handled correctly.
Open tool →BMI Calculator
Work out your Body Mass Index from height and weight in metric or imperial units, with a plain-English explanation of what the ranges mean — and do not mean.
Open tool →Percentage Calculator
Three calculators in one: find a percentage of a number, express one number as a percentage of another, and measure percentage increase or decrease.
Open tool →Case Converter
Convert any text to UPPERCASE, lowercase, Title Case, or Sentence case in one click, then copy it straight back into your document.
Open tool →Quick Browser Games for a Five-Minute Break
Our games are deliberately simple, quick to learn, and kind to older devices. There are no accounts, no in-game purchases, and no downloads — just three classics rebuilt for the modern browser. They are also genuinely good for you in small ways: matching games exercise working memory, and even a short round of Snake sharpens focus and reaction time.
Tic Tac Toe
The original pen-and-paper classic against the computer, with running scores for you, the computer, and draws. Can you find the fork that beats the machine?
Play now →Memory Match
Flip the cards and match all eight pairs in as few moves as you can. A gentle workout for concentration that children and adults both enjoy.
Play now →Snake
Guide the snake, eat the food, and do not bite yourself. Arrow keys or on-screen controls, with speed that rises as your score climbs.
Play now →From the Blog: Guides Worth Reading
Tools are only half of ToolPlay Hub. Our blog explains the ideas behind the numbers — how BMI is actually calculated and where it misleads, why password length beats password tricks, how leap years change an age calculation, and how a five-minute game can reset a tired brain. Start with these reader favourites, or browse the full list of guides.
Strong Password Habits That Actually Stick
Length beats cleverness. A practical, jargon-free guide to passwords you will actually keep using.
Read guide →How BMI Works — and Where It Misleads
The formula, the history, and the honest limits of the world's most common health number.
Read guide →Using Online Tools Safely: A Privacy Guide
What happens to the text you paste into a free tool? How to tell the safe sites from the risky ones.
Read guide →Why People Trust ToolPlay Hub
We keep three promises. First, privacy by design: our tools process your input locally in your browser, so the essay you paste into the word counter or the date you enter into the age calculator never travels to a server. Second, honest content: every guide on this site is written by our own team, checked against primary sources, and updated when the facts change. Third, no dark patterns: no fake download buttons, no forced sign-ups, and no countdown timers trying to rush you. Just tools that work.
Frequently Asked Questions
Are the tools and games really free?
Yes. Every tool and game on ToolPlay Hub is free to use, as often as you like, with no account and no trial period. The site is supported by advertising, which keeps it free without charging visitors or selling data.
Is my data private when I use these tools?
Yes. The calculators and converters run in your own browser using JavaScript. The text and numbers you enter are processed on your device and are not uploaded to or stored on our servers. Our Privacy Policy explains the limited data handled by analytics and advertising partners.
Do the games work on phones and tablets?
They do. All three games are built with responsive layouts and touch-friendly controls. Snake includes on-screen direction buttons for touch devices, and Memory Match and Tic Tac Toe are tap-based by design.
How accurate are the calculators?
The calculators use the standard published formulas — for example, BMI uses the World Health Organization formula and ranges, and the age calculator counts actual calendar days including leap years. Results are estimates for general information; our Disclaimer explains the limits, especially for health figures.
Can I suggest a new tool or report a problem?
Absolutely — reader suggestions have shaped most of what we build. Use the contact page to propose a tool, request a guide topic, or tell us about anything that looks wrong. We read every message.