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Bidirectional · ASCII / UTF-8

Binary Translator

Convert text to binary and binary back to text, instantly. Paste any binary string — spaces, commas or no delimiter at all — and it just works.

Text → Binary Binary → Text UTF-8 safe
Live conversion
Tip: paste binary into the right box to decode it back to text.
Quick examples

See it in action.

Click any example to load it into the translator above — the binary updates instantly.

How to use it

Three steps, no learning curve.

01

Pick a direction

Type plain text on the left to encode it, or paste a binary string on the right to decode it back to text.

02

Watch it convert live

There's no “convert” button — every keystroke updates the other box immediately.

03

Copy or swap

Copy the result with one click, or hit the swap arrow to flip which side is the input.

Where this comes up

Common uses for a binary translator.

Binary code reference

How letters become binary.

Every character is stored as a byte. Here are a few common ones — the full set lives in the ASCII table.

CharacterDecimalBinary
A6501000001
B6601000010
C6701000011
a9701100001
b9801100010
04800110000
14900110001
[space]3200100000

View full ASCII Table →

Related conversions

Go one level deeper.

Binary numbers also map directly onto decimal and hexadecimal — useful once you're past plain text.

FAQ

Binary translator, explained.

How does a binary translator actually work?
Each character of text is converted to its numeric code point (using ASCII or UTF-8), and that number is written in base‑2 instead of base‑10. The result is a string of 0s and 1s, usually shown in 8-bit groups (one byte per character for ASCII).
What's the difference between ASCII and UTF-8 mode?
ASCII mode assumes one byte per character and only covers the first 128 characters (English letters, digits, basic punctuation). UTF-8 mode supports any language, emoji and special symbols, but some characters take up more than one byte — that's why the binary output can be longer than 8 bits per character.
Can this tool decode binary with no spaces?
Yes — as long as each byte is a clean multiple of 8 bits, the decoder will group and decode it automatically. For best results when typing by hand, separate bytes with a space.
Is this the same as a binary calculator?
Not quite. A binary calculator converts numbers (binary ↔ decimal ↔ hex) — see our Binary to Decimal and Binary to Hex tools for that. This page converts binary specifically to and from readable text.