About this binary converter
Everything a computer stores is binary underneath — every letter is a number, and every number is bits. This converter shows text the way the machine sees it: each character as its 8-bit code, and back again.
How to use it
- Type text and click Text → Binary.
- Or paste 8-bit binary groups and click Binary → Text.
- Copy the output.
The formula
Each character → its character code in base 2, padded to 8 bits (A = 65 = 01000001)
Worked example
"Hi" becomes 01001000 01101001 — H is 72, i is 105.
Frequently asked questions
Why 8 bits per character?
One byte (8 bits) per character is the classic ASCII/Latin-1 model. Characters beyond code 255 (most emoji and scripts) need more bytes in UTF-8, which this simple converter flags instead of mangling.
Do the spaces matter when decoding?
No — spaces and line breaks are ignored; only complete groups of 8 digits count.
What is 01000001?
65 in decimal — the letter A.