Multi Tools is a growing collection of small, free tools for everyday jobs: calculators, image and PDF tools, text and developer utilities. Each tool does one thing well, opens instantly and works on phones as well as computers.
How the tools work
Every tool runs inside your browser. When you compress a photo, merge PDFs or calculate a loan, the work happens on your own device. Your files and numbers are not uploaded to our servers, and nothing you type into a tool is stored by us.
Accuracy
We explain the formula or method behind each tool on its page so you can check the result yourself. Calculators give estimates for general information. For decisions about health, money, tax or law, please confirm with a qualified professional or the official source.
Languages
The site is available in many languages, and new tools are added regularly. If you spot a translation error or have an idea for a new tool, we would like to hear from you on the contact page.