TetraKits
The TetraKits Binary Converter runs entirely in your browser — free, private, and ready on mobile or desktop.
Overview
Memory addresses, color codes, and subnet masks all mix decimal and hexadecimal — but mental conversion is error-prone. Enter a value, pick bases, and get the answer for homework, interviews, or debugging.
How to use the binary converter
Convert numbers between decimal, binary, hexadecimal, and octal — enter a value, pick source and target bases, and see the result instantly for programming and computer science work.
Common use cases
Convert numbers between decimal, binary, hexadecimal, and octal — enter a value, pick source and target bases, and see the result instantly for programming and computer science work. Bookmark the tool for quick access during projects.
FAQ
Can I convert negative numbers?
This tool handles non-negative integers. For negative values, use two's complement notation in binary manually.
What is the largest number supported?
JavaScript safe integers up to 9,007,199,254,740,991 (2⁵³ − 1) convert accurately.
How do I read hexadecimal?
Hex digits A–F represent 10–15. 2A hex = (2×16) + 10 = 42 decimal.
Why use octal?
Octal represents Unix file permissions (755 = rwxr-xr-x) and appears in legacy systems.
Is this binary converter free?
Yes. Unlimited conversions with no signup.
