Binary to Text & Text to Binary Translator
Convert text to readable 8-bit binary bytes and decode binary back into UTF-8 text.
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How Computers Read Text
Computers store everything as bits, and text is stored as numbers assigned to characters. In ASCII the letter “A” is decimal 65, which is 01000001 in eight bits — the pattern beginners see when converting a name to binary. ASCII defines 128 characters that fit in seven bits, and in practice those characters are stored in eight-bit bytes with a leading zero, which is why the converter returns 01000001 for “A” rather than a seven-bit 1000001.
Modern text is more complex. UTF-8 encodes every Unicode character in one to four bytes: ASCII characters still take a single byte, accented letters take two, and emoji and rare scripts take three or four. A visible character can therefore occupy several eight-bit groups, so byte boundaries matter when you split a binary string — cutting between the bytes of one character produces garbage when the halves are decoded separately.
Formatting Binary Strings
How the bits are grouped determines how usable the output is. This converter writes eight bits per byte with a space between groups, so you can read each byte, spot ASCII runs, and decode by hand — the layout that matters for puzzles, coursework, and manual inspection. Removing the grouping produces one continuous bit string, which is the format some tools, protocols, and exercises expect as raw input.
If decoded text comes out wrong, check the grouping first. Bits split mid-character, stray whitespace, or a value encoded at a different width shifts every byte that follows. Keep pasted input in clean eight-bit groups, and when the original was encoded differently — seven-bit ASCII or sixteen-bit Unicode — convert with matching settings before reading the result.
Questions fréquentes
What is the difference between 7-bit and 8-bit binary?
The original ASCII standard assigned seven bits per character, which covers the 128 values from 0 to 127 — enough for the English alphabet, digits, and basic punctuation. Files are stored as eight-bit bytes, so ASCII is almost always shown as eight-bit binary with a leading zero added, which is why “A” appears as 01000001 rather than 1000001. The eighth bit also allows values from 128 to 255, used by legacy extended-ASCII tables. For modern text the byte alone is not the character: UTF-8 decides how many bytes each character needs, so the eight-bit group is the unit you read, and the mapping from bytes to characters depends on that encoding.
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