Text to Binary Converter — Free English, ASCII & Letters to Binary Code

Text to Binary Converter — Free English, ASCII & Letters to Binary Code. Free text to binary converter. Turn English words, letters and ASCII or UTF-8 text into binary code (and back) with custom separators, byte stats and share links — 100% in your browser.

Our free text to binary converter turns any text into binary code the moment you type. Enter English words, a name, a sentence or a whole paragraph and every character is encoded as a group of eight 0s and 1s — for example “Hi” becomes 01001000 01101001.

Plain ASCII letters map to exactly one byte each, so the tool doubles as an ASCII to binary chart for homework, and characters such as é, 世 or emoji are encoded as proper UTF-8 bytes instead of being truncated.

Switch to UTF-16 when you need 16-bit code units, and choose a space, comma, new line or no separator to match the format your course, program or puzzle expects. The converter works in both directions.

Paste a binary string into the second box to turn binary code back into text: spaces, commas, line breaks and stray characters are ignored, and a clear warning appears when the number of bits is not a multiple of 8 (or 16).

Live statistics show how many characters, bytes and bits your text uses, which makes it a handy text to binary code helper for computer-science classes, networking labs, CTF challenges and learning how computers store letters to binary.

Need the reverse workflow with more delimiter choices? Try our Binary Translator. For numbers rather than words, use the Integer Base Converter or the Binary Calculator.

Everything runs locally in your browser — your messages, passwords and source code are never uploaded, and the page keeps working offline once loaded.

Load the sample to see how English to binary conversion works, copy the binary or decoded text with one click, send the binary straight to the decoder to verify a round trip, or copy a share link that restores your text, separator and encoding.

Related encoders: Text to Unicode, Hex to ASCII Converter, Morse Code Translator and Base64 Encode & Decode.

Frequently asked questions

How do I convert text to binary code?

Type or paste your text into Enter text. The Binary output below shows every byte as eight 0s and 1s, for example Hi becomes 01001000 01101001. Click Copy Binary to copy it, and check the counters for the number of characters, bytes and bits.

How do I convert binary back to text?

Paste the binary into Enter binary in the Binary to Text section. Spaces, commas, line breaks and any other characters that are not 0 or 1 are ignored, and the decoded text appears below. If the number of bits is not a multiple of 8, or 16 in UTF-16 mode, an Invalid binary string warning appears.

What is the difference between UTF-8 / ASCII and UTF-16?

UTF-8 / ASCII (8-bit), the default, writes plain English letters as one byte each and accented letters, other scripts and emoji as two to four bytes. UTF-16 (16-bit) writes each character as one or two 16-bit groups. Use the same encoding to encode and decode.

Which separator should I choose?

Space, the default, puts a space between bytes; None joins all bits together; Comma separates them with a comma and space; New line puts each byte on its own line. The decoder accepts all of these formats.

Is text to binary the same as ASCII to binary?

For standard English letters, digits and punctuation, yes: UTF-8 uses the same values as ASCII, so A is 01000001 and a is 01100001. Characters outside ASCII, such as é or emoji, take more than one byte.

How to use this online tool

Text to Binary Converter — Free English, ASCII & Letters to Binary Code is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

Text to Binary Converter — Free English, ASCII & Letters to Binary Code keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use Text to Binary Converter — Free English, ASCII & Letters to Binary Code for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.