What binary format does the decoder accept?

Space-separated 8-bit groups, like 01001000 01101001, or one long run of 0s and 1s without spaces — as long as the total length is a multiple of 8. Extra whitespace between groups is stripped automatically.

Does encoding handle emoji and non-ASCII text?

Yes. Text is converted to UTF-8 bytes first, then each byte becomes an 8-bit binary group, so multi-byte characters like emoji or accented letters round-trip correctly through encode and decode.

Why did decoding fail with an error?

Either the total number of 0/1 digits isn't a multiple of 8 (each byte needs exactly 8 bits), the string contains a character other than 0 or 1, or the resulting bytes aren't valid UTF-8. Check you copied the full binary string without truncation.

Is my text uploaded anywhere?

No. Conversion happens entirely in your browser with plain JavaScript — nothing you type or paste is sent to a server.

BINARY CONVERTER

Convert text to binary and binary back to text, both directions. Nothing leaves your browser.

Text

Binary

01001000 01101001 00100001

How to convert text and binary

1
Pick Encode (text → binary) or Decode (binary → text).
2
Type or paste your input on the left.
3
Read the converted result on the right as you type.
4
Click Copy to copy the result to your clipboard.

Questions

What binary format does the decoder accept?: Space-separated 8-bit groups, like 01001000 01101001, or one long run of 0s and 1s without spaces — as long as the total length is a multiple of 8. Extra whitespace between groups is stripped automatically.
Does encoding handle emoji and non-ASCII text?: Yes. Text is converted to UTF-8 bytes first, then each byte becomes an 8-bit binary group, so multi-byte characters like emoji or accented letters round-trip correctly through encode and decode.
Why did decoding fail with an error?: Either the total number of 0/1 digits isn't a multiple of 8 (each byte needs exactly 8 bits), the string contains a character other than 0 or 1, or the resulting bytes aren't valid UTF-8. Check you copied the full binary string without truncation.
Is my text uploaded anywhere?: No. Conversion happens entirely in your browser with plain JavaScript — nothing you type or paste is sent to a server.