How do I convert text to binary?

Each character has a numeric code point (e.g., A=65). Convert that number to base 2 (binary). A=65=01000001. For a full word like "Hi": H=72=01001000, i=105=01101001. Separate each byte with a space. Our converter does this instantly as you type.

What is the difference between ASCII and Unicode binary?

ASCII uses 7 bits (0-127) covering English letters, digits, and symbols. Unicode extends this to 149,000+ characters including all languages and emoji. ASCII characters use one byte (8 bits) in binary. Unicode characters may need multiple bytes—emoji like 🎉 is U+1F389 = 11111001110001001 in binary.

How do I convert binary back to text?

Split the binary string into 8-bit groups (bytes). Convert each group from base 2 to decimal. Then look up the character for that code point. Example: 01001000 01101001 → 72 105 → "Hi". Our tool handles this automatically—paste binary and get text instantly.

What is hexadecimal and how does it relate to binary?

Hexadecimal (hex) is base-16 using digits 0-9 and letters A-F. Each hex digit represents exactly 4 binary digits: F=1111, A=1010, 0=0000. So binary 01001000 = hex 48, and "Hello" in hex is 48 65 6C 6C 6F. Hex is more compact than binary while still mapping directly to bits.

What is octal encoding?

Octal is base-8 using digits 0-7. Each octal digit represents 3 binary digits. It was commonly used in early computing (Unix file permissions use octal: chmod 755). "A" in octal is 101 (decimal 65). Octal is less common today but still appears in programming and system administration.

Can I convert emoji and special characters to binary?

Yes! Our converter supports full Unicode including emoji, Chinese/Japanese/Korean characters, Arabic, and more. Emoji have larger code points—🚀 is U+1F680 = decimal 128640. These need more than 8 bits in binary. The character breakdown table shows each character's values across all formats.

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Text to Binary Converter

To convert text to binary, get each character's Unicode code point and convert to base 2. "A" = 65 = 01000001. "Hello" = 01001000 01100101 01101100 01101100 01101111. Each 8-bit group (byte) represents one ASCII character. For hex, convert to base 16: A = 41. For octal, base 8: A = 101.

Convert text to binary, hexadecimal, or octal and back. Real-time two-way conversion with character breakdown showing each character's binary, hex, and octal values. Supports Unicode and emoji.

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Common Binary Values

How to Use

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Frequently Asked Questions

How do I convert text to binary?: Each character has a numeric code point (e.g., A=65). Convert that number to base 2 (binary). A=65=01000001. For a full word like "Hi": H=72=01001000, i=105=01101001. Separate each byte with a space. Our converter does this instantly as you type.
What is the difference between ASCII and Unicode binary?: ASCII uses 7 bits (0-127) covering English letters, digits, and symbols. Unicode extends this to 149,000+ characters including all languages and emoji. ASCII characters use one byte (8 bits) in binary. Unicode characters may need multiple bytes—emoji like 🎉 is U+1F389 = 11111001110001001 in binary.
How do I convert binary back to text?: Split the binary string into 8-bit groups (bytes). Convert each group from base 2 to decimal. Then look up the character for that code point. Example: 01001000 01101001 → 72 105 → "Hi". Our tool handles this automatically—paste binary and get text instantly.
What is hexadecimal and how does it relate to binary?: Hexadecimal (hex) is base-16 using digits 0-9 and letters A-F. Each hex digit represents exactly 4 binary digits: F=1111, A=1010, 0=0000. So binary 01001000 = hex 48, and "Hello" in hex is 48 65 6C 6C 6F. Hex is more compact than binary while still mapping directly to bits.
What is octal encoding?: Octal is base-8 using digits 0-7. Each octal digit represents 3 binary digits. It was commonly used in early computing (Unix file permissions use octal: chmod 755). "A" in octal is 101 (decimal 65). Octal is less common today but still appears in programming and system administration.
Can I convert emoji and special characters to binary?: Yes! Our converter supports full Unicode including emoji, Chinese/Japanese/Korean characters, Arabic, and more. Emoji have larger code points—🚀 is U+1F680 = decimal 128640. These need more than 8 bits in binary. The character breakdown table shows each character's values across all formats.

Common Text to Binary Conversions

Character	Binary	Hex	Octal	Decimal
A	01000001	41	101	65
Z	01011010	5A	132	90
a	01100001	61	141	97
z	01111010	7A	172	122
0	00110000	30	60	48
9	00111001	39	71	57
Space	00100000	20	40	32
!	00100001	21	41	33