🛠️ Web & Developer

Binary Translator

Convert text to binary and binary to text instantly — plus decimal, hexadecimal and octal. Full Unicode and emoji support, custom separators, and a number base converter.

Binary Translator & Converter

Translate between text and binary in both directions, choose your output base and separator, and see all number formats at once. Everything runs in your browser — your text never leaves your device.

Output Format

Separator

Text InputType or paste your text

Binary Output

All Formats At Once

Binary

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Decimal

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Hexadecimal

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Octal

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What is a Binary Translator?

A binary translator converts text into binary code (the 0s and 1s computers use) and converts binary back into readable text. This tool goes further, also handling decimal, hexadecimal, and octal — the four number systems used throughout computing. You can translate in either direction, choose how the output is grouped and separated, and convert a single number between bases. Everything runs locally in your browser, so your text is never uploaded anywhere.

Each character of text is represented by one or more bytes using UTF-8 encoding, and each byte is an 8-bit binary number. For example, the letter "A" is the byte 65, which in binary is 01000001. Because this translator uses full UTF-8, it correctly handles accented letters, non-Latin scripts, and even emoji — not just basic English.

How to Convert Text to Binary

Each character maps to its UTF-8 byte value, and each byte is written as an 8-bit binary number. Standard English letters and symbols are a single byte; accented characters and emoji use two to four bytes.

Character → UTF-8 byte(s) → 8-bit binary

'A' → 65 → 01000001
'a' → 97 → 01100001
' ' → 32 → 00100000
'5' → 53 → 00110101

"Hi" → 01001000 01101001
H = 72 = 01001000
i = 105 = 01101001

How to Use This Binary Translator

In Text ↔ Code mode, choose your direction: "Text → Code" turns text into binary (or decimal, hex, or octal — your choice), and "Code → Text" turns code back into readable text. Pick your output format and separator, then type or paste — the result appears instantly, with no button to press. The "All Formats At Once" panel shows your text in binary, decimal, hex, and octal simultaneously, each with a copy button. Switch to Number Base Converter mode to convert a single number between binary, decimal, hexadecimal, and octal.

Options and Features

Both directions: text to binary, and binary back to text.
Four number systems: binary, decimal, hexadecimal, and octal output.
Separator choice: space, none, comma, hyphen, or new line between values.
Full Unicode: correctly handles emoji, accents, and non-English scripts via UTF-8.
All-formats panel: see binary, decimal, hex, and octal of your text at once.
Number base converter: convert any single number between the four bases.
Live conversion: results update instantly as you type, with one-click copy.
Private: all processing happens in your browser — nothing is uploaded.

How to Convert Binary to Text

To decode binary back into text, the translator splits the binary string into 8-bit groups (bytes), converts each group to its numeric value, then decodes those bytes as UTF-8 text. Switch to "Code → Text", paste your binary, and it decodes automatically. It's forgiving about formatting — binary with spaces, without spaces, or with commas all work, because the tool strips everything that isn't a 0 or 1 before grouping into bytes.

Binary, Decimal, Hexadecimal and Octal

These are four number bases that represent the same values differently. Binary (base 2) uses 0–1. Octal (base 8) uses 0–7. Decimal (base 10) uses 0–9, the system humans use daily. Hexadecimal (base 16) uses 0–9 then A–F. Hexadecimal is especially common in programming because each hex digit maps to exactly 4 binary bits, making it a compact shorthand for binary — which is why colours (#FF5733), memory addresses, and byte values are usually shown in hex.

Decimal	Binary	Hex	Octal	Char
65	01000001	41	101	A
97	01100001	61	141	a
48	00110000	30	060	0
32	00100000	20	040	(space)
33	00100001	21	041	!

What is ASCII and UTF-8?

ASCII is a character encoding from the 1960s that assigns numbers 0–127 to English letters, digits, punctuation, and control characters. UTF-8 is the modern standard that extends ASCII to cover every character in every language plus symbols and emoji, using one to four bytes per character. For plain English text, UTF-8 and ASCII produce identical results. This translator uses UTF-8, so it works correctly with any character — while still matching ASCII exactly for basic English.

💡 Why 8 bits per character? One byte (8 bits) can represent 256 different values (2⁸), enough for all 128 ASCII characters with room to spare. UTF-8 keeps ASCII characters as single bytes and uses extra bytes only for characters beyond the basic set — which is why an emoji becomes several bytes of binary.

Uses of Binary Translation

Learning computer science: understand how computers store text at the machine level.
Programming and debugging: inspect bytes, bitwise operations, and data encoding.
Networking: work with IP addresses, subnet masks, and binary representations.
Cryptography and encoding: binary is the foundation of hashing and encryption.
Puzzles and games: encode and decode secret messages for escape rooms and challenges.
Education and homework: check binary conversion answers instantly.

Why Convert Text to Binary?

Beyond curiosity, converting text to binary is a common task in computer science education and software development. Students learning how computers represent data use it to see the link between characters and bits. Developers use binary and hex representations when working at a low level — examining file formats, network packets, character encodings, or bugs that only make sense when you can see the underlying bytes. And binary messages are a popular novelty for geeky greetings, tattoos, engravings, and puzzle games.

Is My Text Private?

Yes. This binary translator runs entirely in your browser using JavaScript — your text is converted on your own device and is never sent to any server or stored anywhere. You can use it for sensitive text with confidence, and it even works offline once the page has loaded. There's no sign-up, no logging, and no upload.

Frequently Asked Questions

How do I convert text to binary?

Type or paste your text into the input with "Text → Code" selected and "Binary" as the output format. Each character is converted to its UTF-8 byte value and shown as an 8-bit binary number. For example, "Hi" becomes 01001000 01101001. The conversion happens instantly as you type, and you can copy the result with one click.

How do I convert binary to text?

Switch to "Code → Text", make sure the input format is set to Binary, and paste your binary code. The tool splits it into 8-bit bytes, converts each to its character, and shows the decoded text. It accepts binary with spaces, without spaces, or with commas — it automatically ignores anything that isn't a 0 or 1 before decoding.

Does this work with emoji and other languages?

Yes. This translator uses UTF-8 encoding, which correctly represents every character — accented letters, Chinese, Arabic, Cyrillic, emoji, and more. An emoji like 🚀 becomes four bytes (32 bits) of binary because UTF-8 uses multiple bytes for characters beyond the basic ASCII set. Decoding reverses it perfectly back to the original character.

What is the binary for "hello"?

The binary for "hello" (lowercase) is 01101000 01100101 01101100 01101100 01101111. Each letter is its ASCII/UTF-8 value in 8-bit binary: h=104, e=101, l=108, l=108, o=111. You can verify this by typing "hello" into the translator above.

What is a bit and a byte?

A bit is a single binary digit — a 0 or a 1, the smallest unit of digital information. A byte is 8 bits grouped together, able to represent 256 values (2⁸). One byte holds any basic ASCII character. Storage is measured in bytes: a kilobyte is 1,024 bytes, a megabyte is 1,024 kilobytes, and so on.

How is hexadecimal related to binary?

Hexadecimal (base 16) is a compact shorthand for binary. Because 16 = 2⁴, each hex digit represents exactly 4 binary bits, so one byte (8 bits) is exactly 2 hex digits. For example, binary 01000001 = hex 41 = decimal 65 = "A". Programmers prefer hex because it's far shorter than binary while mapping cleanly to it — which is why hex appears in colour codes, memory addresses, and file data.

Why does my binary have spaces between groups of 8?

Each group of 8 bits is one byte, representing one character (in ASCII) or part of a character (in UTF-8). The spaces make the binary readable by separating the bytes. You can change or remove the separator using the Separator option — the decoder still works either way, because it groups the bits into bytes automatically.

Can I convert numbers between binary, hex, decimal and octal?

Yes — switch to the "Number Base Converter" mode. Enter a value, choose which base it's currently in, and the tool instantly shows it in all four bases: binary, decimal, hexadecimal, and octal. This is useful for programming, computer science homework, and understanding how the same number looks in different number systems.

Is my text sent to a server?

No. The entire conversion runs in your browser using JavaScript, so your text stays on your device and is never uploaded, logged, or stored. It also works offline once the page has loaded. This makes it safe to use even for private or sensitive text.