About this site

Free Online Tools Website is a collection of 33 free calculators, converters and file utilities that run entirely in your web browser. The site was started with a simple frustration: most "free" online tools bury a ten-second task under sign-up walls, upload queues, watermarks and daily limits. We wanted tools that just work — open the page, get the answer, close the tab.

How the tools work

Every tool is written in plain JavaScript and executes on your device. When you compress an image or merge PDFs, the file is read by your browser, processed in memory and handed back to you as a download. It is never transmitted to our servers — in fact the site has no application server at all; it is a set of static pages served from a content delivery network. The same is true for the calculators: your loan amount, salary or date of birth never leaves the page.

Accuracy

The finance calculators follow the formulas used by Indian banks, mutual funds and the Income Tax Department: reducing-balance EMI, quarterly-compounded FD and RD, start-of-month SIP and the slab rates for the current assessment year. Each page shows the formula so you can check the result yourself. Where rules change — tax slabs, PPF rates, GST rates — we update the site after the official notification; the date of the rules in force is shown on the tool.

Advertising

The site is free to use and is supported by advertising served through Google AdSense. Ads are clearly marked and never interfere with a tool's function. We do not sell your data, and we do not run ads that require you to click through before you can use a tool. See our privacy policy for the details of cookies used by advertising partners.

Contact

Found a bug, a wrong number, or want a tool that is missing? Write to us through the contact page. Corrections are our top priority.