Free Online Tools
Everyday utilities that work instantly in your browser — no sign-up, no downloads.
Accurate cm, mm & inch screen ruler at actual size
Live word, character, sentence & paragraph count with reading time
Calculate exact age from any birth date
About these tools
This collection covers the tasks you'd normally need separate apps for. Need to measure something on your screen at actual physical size? The Online Ruler uses your display's true pixel density to render centimeters, millimeters, and inches accurately — no calibration guesswork. Need to know exactly how long your text is? The Word & Character Counter gives you live word counts, character counts (with and without spaces), sentence and paragraph breakdowns, and an estimated reading time the moment you start typing.
Every tool here is built on the same principle: open it and use it immediately. No account required, nothing to install, no data sent anywhere. Whether you're a student hitting an assignment word limit, a designer checking print dimensions, a marketer optimizing copy length, or just someone who needs a quick answer — there's a tool here for you.