Decoded output has weird or missing characters

the binary values probably don't map to printable ASCII. Values below 32 are control characters. Check what you're actually trying to decode.

Decoding fails entirely

the tool expects space-separated groups of exactly 8 binary digits. Common causes: groups that aren't 8 bits long, characters other than `0` and `1` in the input, missing spaces between groups, or leading/trailing whitespace messing up the split.

My binary has no spaces and won't decode

the tool needs spaces to know where one byte ends and the next begins. `0100100001101001` is ambiguous. Split it manually into 8-bit chunks: `01001000 01101001`.

Emoji output looks broken

see above. Multi-byte characters produce multiple groups. It's not a bug, it's how UTF-16 works. If you need proper UTF-8 byte representation for emoji, you'd need a different approach.

Output doesn't match what I see in a hex editor

hex editors show bytes in hexadecimal, not binary. Each hex digit is 4 bits. `0x48` is `01001000`. To convert: split each 8-bit group into two 4-bit nibbles and map to hex digits. Or just use a hex converter tool alongside this one.

All Tools

toolzy.dev / Encoders & Decoders / Binärcode-Übersetzer

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Binary Code Translator

Convert text to binary code or decode binary back to text

Text Input

Binary Output