Binary to Text Converter
Convert binary code back to readable text. Paste binary like "01001000 01101001" and get "Hi" instantly.
Binary Input
Text Output
What Is Binary to Text Conversion?
Computers store and transmit everything — letters, numbers, punctuation — as binary numbers made of 0s and 1s. Each character in the ASCII standard has a numeric code, and that code can be written in binary. For example, the letter "H" is ASCII code 72, which in binary is 01001000. Eight binary digits (bits) form one byte, which maps to one character. This tool takes a string of 8-bit binary groups and converts them back to the characters they represent — useful when reading binary dumps from network protocols, debugging embedded systems, or working through exercises in a computer science course. You can paste binary separated by spaces (one byte per group) or newlines — the converter handles both automatically. The optional character table maps each binary group to its decoded character, giving you a visual reference that's great for teaching or auditing. For a deeper look at how binary encoding works, the Unicode standard documentation explains how modern text encoding extends well beyond ASCII. If you need to go the other direction, the text-to-binary conversion works by reversing this process for each character.
How to Use
Paste your binary code
Type or paste binary into the input box. Each character should be 8 bits (e.g. 01001000). Separate multiple bytes with spaces or newlines.
Conversion happens instantly
The decoded text appears in the output panel as you type. Invalid binary groups are flagged so you can spot typos right away.
Copy or download the result
Use the Copy button to grab the text to your clipboard, or Download to save it as a .txt file. Toggle "Show character table" to see a byte-by-byte breakdown.
Example
Here's a real example decoding the word "Hi" from binary:
Binary → Text
01001000 01101001→ Text Output
HiCharacter mapping:
01001000 → H
01101001 → iFAQ
Why are binary characters 8 bits long?
One byte is 8 bits, and ASCII encodes each character as a number from 0 to 127 (7 bits), with the 8th bit originally used for parity. Modern usage keeps 8-bit bytes as the standard unit, so a single character = one byte = 8 binary digits.
What separators are supported?
The converter splits on spaces and newlines. You can also mix them — 01001000
01101001 and 01001000 01101001 both produce "Hi". No need to pre-clean your input.
What happens if I paste binary without spaces?
If there are no separators, the converter tries to split the input into 8-bit groups automatically. So 0100100001101001 will still decode to "Hi". This works best when your total length is a multiple of 8.
Can it handle binary beyond standard ASCII?
Yes — the converter uses String.fromCharCode(), which supports the full 0–255 range. Values above 127 map to extended ASCII or Latin-1 characters. For proper Unicode support beyond that range, you'd need multi-byte encoding like UTF-8.
Is this the same as Base64 decoding?
No — binary (0s and 1s) is a direct representation of byte values. Base64 uses a 64-character alphabet (A–Z, a–z, 0–9, +, /) to encode binary data as printable ASCII. They're different encoding schemes. Use the Base64 Decoder for Base64 input.
Is my data sent to a server?
No. All conversion runs entirely in your browser using JavaScript. Nothing is transmitted anywhere, so it's safe to paste sensitive or proprietary binary data.