18 free tools · updated for FY 2025-26

Every everyday tool, beautifully fast.

Calculators, converters and developer utilities in one place. No sign-up, no uploads — everything runs privately in your browser.

100% free No sign-up Private — runs on your device Works on mobile

Instant results

Results update as you type. No page reloads, no waiting.

Private by design

Your numbers, code and text never leave your browser.

Accurate formulas

Bank-standard EMI, FD and RD maths and the latest tax slabs.

Made for every screen

A clean experience on phone, tablet and desktop, with dark mode.

Why use QuickKit?

QuickKit brings the everyday tools you search for into one fast, clean website. Plan a home or car loan with the EMI calculator, compare tax regimes with the income tax calculator, project your investments with the SIP and FD calculators, check a bill with the GST calculator, or debug code with the JSON formatter and JavaScript validator.

Every tool works on desktop and mobile, supports dark mode, and processes your data locally — nothing you type is sent to a server.