Text to Binary Converter – Free Online Encode & Decode Tool
About This Text to Binary Converter
Every character on a screen is really just a number under the hood, and binary is the raw 0s and 1s that computers use to represent those numbers. This tool converts readable text into its binary equivalent, or takes a binary string and turns it back into readable text, with control over bit depth, separators, and byte order along the way.
The BigToolSite Team tested this converter across standard ASCII characters as well as multi-byte Unicode text to confirm both directions of conversion produce accurate, readable results.
You can choose 8-bit encoding for standard ASCII and UTF-8 text, or 16-bit encoding when you need full Unicode support for characters outside the basic ASCII range. Separator options let you format the output with spaces, commas, or newlines between each binary chunk, and the endianness setting controls whether the most significant byte comes first or last in 16-bit mode.
If you’re teaching or learning how character encoding works, our Base64 encoder/decoder shows a different way the same text can be represented. For checking how many characters or words you’re converting, the word counter gives a quick count before you convert.
How to Use the Text to Binary Converter
- Choose “Text to Binary” to convert readable text, or “Binary to Text” to decode a binary string.
- Paste or type your input into the text box.
- Select 8-bit for standard text or 16-bit if you’re working with extended Unicode characters.
- Pick a separator style: space, comma, newline, or none for a continuous string.
- If using 16-bit mode, choose big endian or little endian byte order.
- Click “Convert” to generate the output, then copy it or download it as a .txt file.
Example Usage
Type Hi into the input box with “Text to Binary” and 8-bit selected, and the tool returns 01001000 01101001. Paste that same binary string back in with “Binary to Text” selected, and it decodes back to Hi. If you’re working with characters like emoji or accented letters that fall outside standard ASCII, switch to 16-bit mode to preserve them correctly.
Yes, it’s completely free with no signup required and no limits on how much text you can convert.
8-bit covers standard ASCII and UTF-8 characters and is the most common choice for plain English text. 16-bit is needed for characters outside that range, such as certain accented letters, symbols, or emoji.
Endianness determines the order bytes are arranged in when a character needs more than one byte. Big endian puts the most significant byte first, while little endian puts it last. This only matters in 16-bit mode.
This means the input contains characters other than 0 and 1. Make sure you’re pasting a clean binary string, and remove any labels or extra text before converting.
No. Your input is processed to generate the output and is not saved or logged.
