About HexCalculator

Why I Built This

I kept running into the same small annoyance: needing a quick hex/binary/decimal or color conversion and landing on a page cluttered with ads, pop-ups, or a converter that quietly got the math wrong on anything past a 32-bit value.

HexCalculator is my attempt at fixing that — one place with dozens of focused, accurate tools that load fast, work entirely in your browser, and don't ask for anything in return. No accounts, no data collection, no server-side processing.

Created By

Vinitha — Creator, HexCalculator.

I build and maintain HexCalculator, along with a handful of other free browser-based utility tools. Questions or feedback? Email [email protected].

What This Site Does

HexCalculator is a collection of free, browser-based tools for converting between binary, hexadecimal, decimal, and octal, plus related tasks like text/character encoding (UTF-8, EBCDIC, BCD, ASCII), signed integers and endianness, bitwise operations, networking values, and color formats.

Every tool runs as client-side JavaScript — there's no server-side processing, no account, and no installation. Open a page, type a value, and the result appears instantly.

Why It's Free and Private

Nothing you type into any tool on this site is uploaded, logged, or stored anywhere. The conversion happens locally in your browser and stays there.

The site is free to use with no sign-up. See the Privacy Policy for full details on what, if anything, is collected when you visit.

Who It's For

Programmers and students working across number bases, network engineers reading hex/IP values, and designers or developers converting between color formats (RGB, HSL, hex, and more).