Text to Binary Converter

What is text to binary converter?

Computers store text as numbers, and each number as a pattern of zeros and ones. This converter shows that hidden layer: every character becomes one or more bytes, written in binary or in hexadecimal.

It also works backwards, so you can decode binary strings from a puzzle, a class exercise or a data file.

How to use the text to binary converter

1. Choose the conversion direction.
2. Paste your text, binary or hex.
3. Copy the result.

How the text to binary converter works

The text is encoded as UTF8 bytes. Each byte is shown as eight binary digits or two hexadecimal digits. To decode, the groups are turned back into bytes and read as UTF8 text.

Worked example

Common uses of the text to binary converter

• Learning how computers store text.
• Solving binary puzzles.
• Debugging encoding problems.
• Preparing classroom examples.
• Checking the bytes of a string.

Tips and common mistakes

Separate binary groups with spaces when decoding.

Emoji and non English letters use several bytes each.

Background: what to know before you rely on it

Binary is the base two number system that digital hardware uses because a circuit can be on or off. A group of eight bits is a byte, and it can hold 256 values. Early text codes such as ASCII used one byte per English character. Unicode later gave every symbol in every language a number, and UTF8 became the common way to write those numbers as bytes. That is why a plain letter takes one byte while an emoji can take four.

Private, free and fast

This tool runs entirely in your browser. What you type or choose is not uploaded to a server and is not saved after you close the page, which keeps it fast and private. It is free to use as often as you like. See more in all converters, or browse the full list of tools.

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Results are for information and education. For legal, financial, medical or security decisions, check with a qualified professional. Check critical conversions with an official source.