Text to Binary Converter
Convert text to binary code and binary back to text instantly. Free online text-to-binary translator using 8-bit ASCII/UTF-8 - encode words and sentences or decode 0s and 1s in your browser.
About Text to Binary Converter
Convert any text to binary code, or decode binary back into readable text, instantly in your browser. This free text to binary converter turns each character into its 8-bit ASCII/UTF-8 representation - for example the letter "A" becomes 01000001 - and reverses the process when you paste 0s and 1s. It handles single letters, whole words, and long sentences, keeps spaces between bytes for readability, and supports Unicode characters such as accented letters and emoji through UTF-8. Everything runs client-side, so your text is never uploaded or stored.
How to Use Text to Binary Converter
- Type or paste your text into the input box to convert it to binary.
- Or switch to decode mode and paste binary (groups of 8 bits, with or without spaces) to turn it back into text.
- Each character is converted to its 8-bit binary value, separated by spaces so the output is easy to read.
- Click Copy to grab the binary or decoded text in one click.
- Try single characters, single words, or full sentences - the converter handles any length.
Text to Binary Converter Examples
Single letter
The letter "A" becomes 01000001 in 8-bit binary (ASCII 65).
A word
"Hi" converts to 01001000 01101001 (H = 72, i = 105).
Decode binary to text
Paste 01001110 01101111 and switch to decode mode to get back "No".
Words to binary
Convert a whole phrase to binary for puzzles, CTF challenges, or geeky messages - each character, including spaces, becomes one 8-bit group.
Read the full guide
How to Use Text to Binary Converter: Complete Guide (2026) - 5 min read
Frequently Asked Questions about Text to Binary Converter
- How do I convert text to binary?
- Type or paste your text and the tool converts each character to its 8-bit binary value. For example, "A" is ASCII 65, which is 01000001 in binary. Every character - letters, digits, punctuation, and spaces - is encoded as its own 8-bit group.
- What encoding does the text to binary converter use?
- Each character is converted to its 8-bit ASCII/UTF-8 binary representation. Standard English letters, numbers, and symbols are single bytes (8 bits). Characters outside basic ASCII, such as accented letters and emoji, are represented by multiple UTF-8 bytes.
- Can I decode binary back to text?
- Yes - paste a string of 0s and 1s (with or without spaces between bytes) and switch to decode mode. The tool groups the bits into bytes and converts each one back to its character, reconstructing the original text.
- How do I read binary code?
- Binary uses only 0s and 1s (base 2), and each 8-bit group represents one character. Read each group as a number - for example 01000001 = 65 - then map that number to its ASCII/Unicode character (65 = A). This converter does the mapping for you in both directions.
- Why is each character 8 bits?
- 8 bits (one byte) can represent 256 values (0-255), which covers the full ASCII character set and the first block of Unicode. A fixed 8-bit width keeps the output aligned and makes it easy to split the bits back into characters when decoding.
- Do I need spaces between the binary bytes?
- For readability the converter separates each 8-bit byte with a space. When decoding, spaces are optional - the tool can split a continuous stream of bits into 8-bit groups automatically, as long as the total length is a multiple of 8.
- Does it support words, sentences, and emoji?
- Yes. You can convert a single letter, a full word, or long sentences, and spaces and punctuation are encoded too. Emoji and non-English characters are supported through UTF-8, where each one is represented by two or more bytes.
- What is text to binary used for?
- Common uses include learning how computers store characters, teaching ASCII and number systems in class, debugging text-encoding issues, solving CTF and puzzle challenges, and creating fun binary-coded messages.
- Is my text sent to a server?
- No. All conversion happens entirely in your browser with JavaScript. Nothing you type or paste is uploaded, logged, or stored, so it is safe to convert private text.