Text to Binary Converter

This tool encodes any text into binary. Type in English words, numbers,
our punctuation and get back the binary code for each character, The direction is
locked, so there is no auto detect step and nothing to choose first.

Advanced options

How to encode text to binary

  1. Type or paste your text into the input box. Letters, numbers, spaces, and punctuation are all supported.
  2. The tool looks up each character’s ASCII code point and writes it out as an 8 digit binary byte.
  3. Read the binary output as one continuous string, or expand the breakdown to see exactly which byte belongs to which character.
  4. Copy the result, or use Swap if you need to go the other way. That sends your output straight into the Binary to Text Converter as the new input.

How text becomes binary

Every character has a decimal code point on the ASCII table, and that decimal number gets written out as an 8 digit binary byte. Here is Go encoded one character at a time.

Character

Decimal

Binary (8 bit byte)

G

71

01000111

o

111

01101111

This mapping is not new or invented for this tool. ASCII was first standardized in 1963 by the American Standards Association, the body that later became ANSI, under the designation ASA X3.4-1963. Every text to binary converter online, including this one, is still built on that same original character set.

Why people actually encode text to binary

Programmers reach for this tool most, usually to drop a binary literal into a Java, Python, or C project without working out the ASCII math by hand. It shows up in puzzles and social posts too, someone hides a short message in binary and leaves it for a curious reader to decode. Plenty of visitors are just checking their own homework, working out a word on paper first and confirming it here afterward.

Looking for the decode side instead

Binary to Text Converter

Goes the other way, decoding binary back into text.

Binary Translator

Handles both directions at once, if you would rather not lock this page to encoding only.

Last updated September 2026. Every conversion here runs standard, checkable binary to ASCII logic. See the Binary Code Glossary for any term on this page you are not sure about.

Frequently Asked Questions

Yes. Uppercase and lowercase letters have different ASCII code points, so G and g encode to different binary values even though they are the same letter.

Yes. Toggle between spaced bytes, grouped in 8s for readability, one continuous string, or a 0b prefixed format for each byte.

Standard ASCII only covers the basic English character set. Emoji and accented letters need full Unicode handling instead, see our ASCII vs Unicode guide for why.

Yes. Every standard ASCII character encodes to exactly one 8 digit binary byte, whether it is a letter, a digit, a space, or a punctuation mark.

In your browser. The conversion runs entirely on your device and nothing you paste in is sent to or stored on a server.

Yes. Use Swap to send your binary output straight into the Binary to Text Converter, or just paste it there yourself.