Only 8-bit bytes are supported; split into two bytes.

Strip prefixes; only 0 and 1 are kept.

Output is UTF-8 interpretation of bytes. For UTF-16LE, convert bytes accordingly first.

Binary string decoder

Paste continuous bits or space-separated bytes (e.g. 01001000 01100101). Length must be a multiple of 8.

Binary

Text

How it works

All non 0/1 characters are stripped, including spaces and newlines.

Bytes are decoded as UTF-8. Invalid UTF-8 shows an error.

Educational demos, CTF puzzles, or inspecting raw bit patterns.

Long inputs can be slow in the browser; paste reasonable sizes.

16-bit binary?: Only 8-bit bytes are supported; split into two bytes.
0b prefix?: Strip prefixes; only 0 and 1 are kept.
UTF-16?: Output is UTF-8 interpretation of bytes. For UTF-16LE, convert bytes accordingly first.
Local?: Yes.