Free Everyday Online Utilities
Everyday tasks shouldn't require a spreadsheet. Whether you need to figure out what 15% off $84 is, find out how many days until your birthday, convert kilometers to miles, or generate a QR code for a Wi-Fi password — these utilities give you the answer in seconds.
Unlike generic calculation sites, every tool here is designed for clarity. Each one explains what it's calculating, shows the formula when relevant, and lets you copy the result with one click. All 5 utilities run entirely in your browser — your inputs are never sent to a server.
What These Utilities Can Do
Percentage Calculator — Four Modes in One
Calculate X% of Y, find what percent X is of Y, compute percent change between two values, and add or subtract a percentage from a number. Useful for discounts, tips, tax, grade calculations, and financial comparisons.
Age & Date Calculator — Exact Time Math
Find your exact age in years, months, and days. Count the number of days, weeks, or months between any two dates. Add or subtract days for deadline calculations.
Unit Converter — 50+ Units Across 6 Categories
Convert between metric and imperial units for length, weight, temperature, volume, area, and speed. All conversions happen instantly as you type.
QR Code Generator — For URLs, Text, Wi-Fi, and More
Create scannable QR codes for any URL, text, vCard, email, SMS, or Wi-Fi password. Download as PNG or SVG. Custom colors and error correction levels.
Pomodoro Timer — Focus Without Distraction
Work in focused 25-minute intervals with 5-minute short breaks and 15-minute long breaks after every fourth session. Browser notifications remind you when to switch — no app required.
Why Client-Side Utilities Are Better
Most online calculators send your input to a server, process it, and return the result. That means latency, potential logging, and a dependency on internet connectivity. Toolisk's utilities run directly in your browser using JavaScript — which means results are instant, they work offline once the page loads, and your input is never transmitted anywhere.
This matters most when you are working with something sensitive — salary numbers, personal dates, private contact details for a QR code. With browser-based utilities, the data never leaves your device.
Frequently Asked Questions
Are all Toolisk everyday utilities really free?
Yes. Every utility is completely free with no sign-ups, paywalls, or usage limits.
Is my data safe when I use these utilities?
Absolutely. Every utility runs entirely in your browser. Your inputs never leave your device — there is no upload, no server-side storage, and no telemetry.
Do I need to install anything?
No. Open the URL and the utility is ready. Works on desktop and mobile browsers.
Do these utilities work offline?
Yes, once the page has loaded. Since all processing happens in your browser, you can continue using an already-open utility without an internet connection.