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Convert text to binary or binary to text. Auto-converts as you type. Your data never leaves your browser.
Text Input
Binary Output
Pro tip
Binary data in config files? Git AutoReview catches hardcoded binary strings, encoding issues, and suspicious byte patterns in your PRs.
Type or paste text into the input and the tool converts it to binary automatically — no button needed. Each character becomes an 8-bit binary number separated by spaces. Switch to decode mode with the toggle button or Ctrl+Enter to convert binary back to text.
For example, the letter "A" becomes 01000001 (decimal 65 in ASCII). The word "Hi" becomes 01001000 01101001. Paste any binary sequence with spaces between bytes and the tool decodes it back to readable text.
Learning computer science fundamentals is the most common reason. Understanding how text is stored as binary helps with debugging encoding issues, working with bitwise operations, and understanding network protocols where data is transmitted as binary.
Debugging encoding problems is another use case. When a file shows garbled text, converting to binary can reveal whether the issue is a character encoding mismatch (UTF-8 vs ASCII vs Latin-1). Each encoding assigns different binary patterns to the same characters.
Network protocol analysis often requires reading binary data. TCP/IP headers, DNS packets, and WebSocket frames all use binary formats. Being able to quickly translate between text and binary helps when inspecting packet captures or debugging protocol implementations.
CTF (Capture The Flag) competitions frequently use binary encoding in challenges. Flags might be hidden as binary strings in images, headers, or obfuscated code. A quick translator saves time during competition.
Under the hood your computer stores everything as 0s and 1s — one digit is a bit, eight bits make a byte, and a byte can hold 256 different values. ASCII maps each character to one of those values (A = 65, a = 97, 0 = 48), which then gets stored as eight binary digits. That is the whole trick behind text encoding.
The word "Hello" in binary is: 01001000 01100101 01101100 01101100 01101111. Each group of 8 digits represents one character. The spaces between groups are just for readability — the computer stores them as a continuous stream of bits.
ASCII was designed in the 1960s and only covers 128 characters — English letters, digits, and basic symbols packed into 7 bits. Unicode came along because the rest of the world needed their writing systems too. UTF-8 is the clever part: English characters still use just 1 byte, which keeps them backward compatible with ASCII, but a character like “日” takes 3 bytes. This tool converts each character using its Unicode code point.
The reason developers use hex instead of binary is pure convenience — each hex digit maps to exactly 4 binary digits, so the 8-digit binary number 11111111 becomes just FF. Octal works similarly but at 3 binary digits per octal digit representing 3 binary bits. Developers commonly use hex for colors (#FF0000), memory addresses, and byte values because it is more readable than long binary strings.
Binary data can contain anything — encrypted passwords, API tokens, or proprietary protocol data. Processing it on a server means sending potentially sensitive data over the network. This tool runs entirely in your browser. Nothing leaves your machine.
Auto-converts as you type. Press Ctrl+Enter to toggle between text-to-binary and binary-to-text mode. Press Ctrl+Shift+C to copy the output.
A binary translator converts text to binary (sequences of 0s and 1s) and binary back to text. Each character becomes an 8-bit binary number. For example, A becomes 01000001.
Yes. All conversion happens in your browser using JavaScript. Your data is never sent to any server.
Each character has a numeric code (ASCII/Unicode). The letter A is 65, B is 66, a is 97. That number is converted to base-2 (binary) and padded to 8 digits.
Binary uses base-2 (0 and 1). Hexadecimal uses base-16 (0-9 and A-F). Hex is more compact: the binary 11111111 is just FF in hex.
This tool converts each character using its Unicode code point. Basic emoji and non-ASCII characters will be converted.
Computer hardware is built from transistors that have two states: on (1) and off (0). Binary is the natural language of digital electronics.
A byte is 8 bits. One byte can represent 256 different values (0 to 255). A single ASCII character takes one byte.
Each position represents a power of 2, from right to left: 1, 2, 4, 8, 16, 32, 64, 128. Add the positions with a 1. Example: 01000001 = 64 + 1 = 65 = A.
Auto-converts as you type. Ctrl+Enter toggles mode. Ctrl+Shift+C copies the output.
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