Web tools

Binary to Text Converter

Convert binary bit strings to UTF-8 text and text back to spaced 8-bit binary groups. Free online tool — no sign-up. Runs locally in your browser.

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How to use

Follow these steps for a clear answer.

Enter UTF-8 text to encode, or 0/1 bits (spaces optional) to decode.

Bits are grouped as 8-bit UTF-8 bytes.

Use Copy next to Result for homework, protocols, or debugging.

Version 1.0.0 · Last reviewed 2026-07-29

Definition: Binary ↔ text conversion maps UTF-8 bytes to 8-bit binary groups and back.
What it calculates: UTF-8 text ↔ space-separated 8-bit binary strings.
Inputs: Plain text (encode) or binary bit string (decode)
Outputs: Binary string or UTF-8 text
Formula: encode: UTF-8 bytes → 8-bit groups; decode: bit groups → UTF-8 bytes
Convert binary bit strings to readable text and the other way around. Bits are treated as UTF-8 bytes (8 bits per byte).

Example

Text: Hi

Binary:

01001000 01101001

Char Dec Binary

H 72 01001000

i 105 01101001
Assumptions: UTF-8 encoding (TextEncoder / Buffer utf8).
Whitespace in binary input is ignored.
Runs locally in the browser.
Units: Bits grouped as 8-bit bytes
Boundary conditions: Empty input → empty output.
Non 0/1 characters or length not divisible by 8 → error on decode.
Example: "Hi" → 01001000 01101001
Validation cases: "Hi" encode → 01001000 01101001
01001000 01101001 decode → Hi
"A" encode → 01000001
Sources: Unicode UTF-8
ASCII / ISO-8859 overlap for 0–127
Last reviewed: 2026-07-29
Calculation version: 1.0.0

Char	Dec	Binary
H	72	01001000
i	105	01101001

Key distinctions behind the tool.

Spaces between bytes?

You can paste continuous bits or space-separated 8-bit groups. Spaces are ignored on decode.

Is this UTF-8?

Yes. Text is encoded/decoded as UTF-8 bytes, so characters outside ASCII work when the bit length is a multiple of 8.

What if length is not a multiple of 8?

Decode requires a bit length divisible by 8. Pad or fix the input first.