Binary Translator

This binary translator converts between text and binary code. Type any text to see its binary representation, or paste binary code (groups of 8 bits) to decode it back to readable text using ASCII character encoding.

Binary Translator

Convert plain text to binary code and decode binary back to readable text.

Input

Space 8-bit groups

Frequently Asked Questions

How do you convert binary to text?

Split the binary string into groups of 8 bits (one byte each). Convert each 8-bit group to its decimal value using positional notation (each bit represents a power of 2). Then look up the corresponding ASCII character for that decimal value. For example, 01001000 = 72 in decimal = 'H' in ASCII. Repeat for each byte to reconstruct the full text message.

How does binary code represent letters?

Binary code represents letters using the ASCII (American Standard Code for Information Interchange) encoding system. Each letter is assigned a unique number: uppercase A-Z are 65-90 and lowercase a-z are 97-122. These numbers are then expressed as 8-bit binary values. For example, 'A' is 65 in decimal, which is 01000001 in binary. This standardized mapping allows computers worldwide to interpret text consistently.

What is ASCII in binary?

ASCII is a character encoding standard that assigns numeric values (0-127) to characters including letters, digits, punctuation, and control characters. In binary, ASCII uses 7 bits to represent 128 unique characters, though it is commonly stored as 8 bits (one byte) with the leading bit set to 0. Extended ASCII uses all 8 bits to support 256 characters, adding accented letters and symbols for international use.

How do you write your name in binary?

To write your name in binary, convert each letter to its ASCII decimal value, then convert that number to 8-bit binary. For example, the name 'Sam' would be: S = 83 = 01010011, a = 97 = 01100001, m = 109 = 01101101. The full binary representation is 01010011 01100001 01101101. Spaces between bytes are optional but improve readability.

How many bits make a character?

In standard ASCII encoding, each character requires 8 bits (1 byte), though only 7 bits are needed for the basic 128-character set. In Unicode UTF-8 encoding, characters can use 1 to 4 bytes (8 to 32 bits) depending on the character. Basic Latin letters use 1 byte, many European and Middle Eastern scripts use 2 bytes, Asian characters typically use 3 bytes, and emojis use 4 bytes.

What is the binary code for the letter A?

The binary code for uppercase 'A' is 01000001 (decimal 65 in ASCII). Lowercase 'a' is 01100001 (decimal 97). The difference between uppercase and lowercase letters in ASCII is exactly 32 (or 00100000 in binary), which means flipping the 6th bit toggles between cases. This elegant design makes case conversion computationally simple for computers.

Can binary represent all languages?

Yes, through Unicode encoding. While basic ASCII only covers English letters and common symbols (128 characters), Unicode supports over 149,000 characters from virtually every writing system in the world, including Chinese, Arabic, Hindi, Japanese, Korean, and emoji. Unicode uses variable-length encoding (UTF-8, UTF-16, UTF-32) to represent characters using 1 to 4 bytes of binary data.

What does 01001000 01101001 mean in binary?

01001000 is the ASCII code 72, which represents the capital letter 'H'. 01101001 is ASCII code 105, which represents the lowercase letter 'i'. Together, 01001000 01101001 spells 'Hi'. Each 8-bit binary group represents one character using the ASCII encoding standard, where A=65 (01000001), a=97 (01100001), 0=48 (00110000), and space=32 (00100000).

What is the difference between ASCII and Unicode?

ASCII (American Standard Code for Information Interchange) uses 7 bits to represent 128 characters, covering English letters, digits, and common symbols. Unicode is a superset that supports over 149,000 characters across all writing systems, including Chinese, Arabic, emoji, and mathematical symbols. ASCII characters occupy positions 0-127 in Unicode, so any ASCII text is also valid Unicode. This translator supports both ASCII (8-bit binary per character) and extended Unicode characters (16-bit binary).

How do I convert binary to text in Python?

In Python, use int() with base 2 to convert binary to a decimal number, then chr() to get the character: chr(int('01001000', 2)) returns 'H'. For a full binary string, split by spaces and convert each group: ''.join(chr(int(b, 2)) for b in binary_string.split()). To convert text to binary, use format(ord(c), '08b') for each character: ' '.join(format(ord(c), '08b') for c in text).

How Binary Translation Works

What is Binary?

Binary is a base-2 number system that uses only two digits: 0 and 1. It is the fundamental language of computers and digital electronics. Every piece of data a computer processes — text, images, audio, and video — is ultimately represented in binary. Each binary digit is called a "bit," and a group of 8 bits forms a "byte," which can represent a single ASCII character.

In a binary number, each position represents a power of 2. Reading from right to left, the positions represent 2⁰ (1), 2¹ (2), 2² (4), 2³ (8), and so on. For example, the binary number 01001000equals 72 in decimal (64 + 8 = 72), which represents the uppercase letter "H" in ASCII.

How Text to Binary Conversion Works

Converting text to binary involves translating each character into its corresponding binary representation. The process follows these steps:

Step 1: Character to ASCII Code

Each character in the input text is mapped to its ASCII (American Standard Code for Information Interchange) numeric value. For example, the letter "A" has an ASCII value of 65.

Step 2: Decimal to Binary

The ASCII numeric value is then converted to its binary equivalent using successive division by 2. The binary number is padded to 8 bits to maintain a standard byte representation.

Step 3: Combine Results

The binary values for each character are combined in order. When spacing is enabled, each 8-bit group is separated by a space for readability.

Example: Converting "Hi" to binary

"H" → ASCII 72 → 01001000

"i" → ASCII 105 → 01101001

Result: 01001000 01101001

ASCII and Binary

ASCII (American Standard Code for Information Interchange) is the character encoding standard that defines a mapping between text characters and numeric values. Standard ASCII uses 7 bits to represent 128 characters (0–127), but in practice each character is stored in a full 8-bit byte. This encoding includes:

Control characters (0–31): Non-printable characters like newline, tab, and carriage return
Printable characters (32–126): Letters, digits, punctuation, and the space character
Uppercase letters (65–90): A through Z in binary range 01000001 to 01011010
Lowercase letters (97–122): a through z in binary range 01100001 to 01111010
Digits (48–57): 0 through 9 in binary range 00110000 to 00111001

For characters beyond the ASCII range (such as accented letters, emoji, or other Unicode characters), this converter uses 16-bit representation to accurately encode the extended character set.

Binary to Text Conversion

Converting binary back to text reverses the encoding process. The binary string is split into 8-bit groups (bytes), each group is converted to its decimal equivalent, and the decimal value is mapped back to its corresponding ASCII character.

Step 1: Parse Binary Groups

The binary input is split into 8-bit groups. Spaces between groups are optional — the converter handles both spaced and continuous binary input.

Step 2: Binary to Decimal

Each 8-bit group is converted to its decimal value by calculating the sum of each bit multiplied by its positional power of 2.

Step 3: Decimal to Character

The decimal value is looked up in the ASCII table to find the corresponding character. The characters are concatenated to form the output text.

Example: Converting binary to "OK"

01001111 → decimal 79 → "O"

01001011 → decimal 75 → "K"

Result: "OK"

Common Binary Values

The following reference table shows commonly used characters and their binary representations for quick lookup:

Character	ASCII Code	Binary
A	65	01000001
B	66	01000010
Z	90	01011010
a	97	01100001
b	98	01100010
z	122	01111010
0	48	00110000
1	49	00110001
9	57	00111001
(space)	32	00100000
!	33	00100001
@	64	01000000
#	35	00100011
.	46	00101110
,	44	00101100
?	63	00111111

This table covers commonly used ASCII characters and their 8-bit binary equivalents. Use this binary translator to convert any character instantly.

How to Read Binary Code

Binary is a base-2 number system, meaning it uses only two digits: 0 and 1. Each digit is called a bit (short for "binary digit"). A group of 8 bits is called a byte, and one byte can represent a single character in the ASCII encoding standard.

To read a binary number, you assign each bit a positional value based on powers of 2, starting from the right. The rightmost bit is 2⁰ (1), the next is 2¹ (2), then 2² (4), and so on up to 2⁷ (128) for the leftmost bit in a byte.

Example: Reading 01001000

Position	7	6	5	4	3	2	1	0
Power of 2	128	64	32	16	8	4	2	1
Bit	0	1	0	0	1	0	0	0
Value	0	64	0	0	8	0	0	0

0×128 + 1×64 + 0×32 + 0×16 + 1×8 + 0×4 + 0×2 + 0×1 = 72= 'H' in ASCII

Simply add up the positional values wherever the bit is 1 and ignore positions where the bit is 0. The resulting decimal number maps to a character via the ASCII table. In this case, 64 + 8 = 72, and ASCII code 72 is the uppercase letter "H".

Binary Alphabet Chart

This complete reference table shows all printable ASCII characters (codes 32–126) with their decimal values and 8-bit binary representations.

Character	Decimal	Binary
(space)	32	00100000
!	33	00100001
"	34	00100010
#	35	00100011
$	36	00100100
%	37	00100101
&	38	00100110
'	39	00100111
(	40	00101000
)	41	00101001
*	42	00101010
+	43	00101011
,	44	00101100
-	45	00101101
.	46	00101110
/	47	00101111
0	48	00110000
1	49	00110001
2	50	00110010
3	51	00110011
4	52	00110100
5	53	00110101
6	54	00110110
7	55	00110111
8	56	00111000
9	57	00111001
:	58	00111010
;	59	00111011
<	60	00111100
=	61	00111101
>	62	00111110
?	63	00111111
@	64	01000000
A	65	01000001
B	66	01000010
C	67	01000011
D	68	01000100
E	69	01000101
F	70	01000110
G	71	01000111
H	72	01001000
I	73	01001001
J	74	01001010
K	75	01001011
L	76	01001100
M	77	01001101
N	78	01001110
O	79	01001111
P	80	01010000
Q	81	01010001
R	82	01010010
S	83	01010011
T	84	01010100
U	85	01010101
V	86	01010110
W	87	01010111
X	88	01011000
Y	89	01011001
Z	90	01011010
[	91	01011011
\	92	01011100
]	93	01011101
^	94	01011110
_	95	01011111
`	96	01100000
a	97	01100001
b	98	01100010
c	99	01100011
d	100	01100100
e	101	01100101
f	102	01100110
g	103	01100111
h	104	01101000
i	105	01101001
j	106	01101010
k	107	01101011
l	108	01101100
m	109	01101101
n	110	01101110
o	111	01101111
p	112	01110000
q	113	01110001
r	114	01110010
s	115	01110011
t	116	01110100
u	117	01110101
v	118	01110110
w	119	01110111
x	120	01111000
y	121	01111001
z	122	01111010
{	123	01111011
\|	124	01111100
}	125	01111101
~	126	01111110

This table covers all 95 printable ASCII characters (codes 32–126). Each character is represented by exactly 8 bits (1 byte). Use the binary translator above to convert any text instantly.

Common Words in Binary

Here are some common words and their binary representations for quick reference and practice:

Word	Binary
Hello	01001000 01100101 01101100 01101100 01101111
Love	01001100 01101111 01110110 01100101
Yes	01011001 01100101 01110011
No	01001110 01101111
Hi	01001000 01101001
OK	01001111 01001011

Each letter is converted to its 8-bit ASCII binary equivalent. Spaces between bytes separate individual characters for readability. Try encoding your own words using the translator above.

Use Cases

Computer science education: Understanding how computers store and process text data at the binary level
Programming and debugging: Inspecting binary data in file formats, network protocols, and memory dumps
Data encoding: Working with low-level data representations for serial communication, embedded systems, and IoT devices
Cryptography: Analyzing plaintext and ciphertext at the bit level for encryption and decryption operations
Digital electronics: Designing and verifying digital circuits that process character data
Web development: Understanding character encoding issues and debugging text rendering problems
CTF challenges and puzzles: Decoding binary-encoded messages in capture-the-flag competitions and coding puzzles

Binary Translator