Convert text to binary and binary back to text (UTF-8, 8-bit).
Converted instantly in your browser.
How do you convert text to binary?
A text-to-binary converter encodes each character as one or more bytes (UTF-8), showing every byte as eight bits; the decoder reads groups of 8 bits back into characters. The tool auto-detects which way to convert. For example, "Hi!" becomes 01001000 01101001 00100001.
Understanding your result
Each character is encoded as one or more bytes (UTF-8), and every byte is shown as eight bits. The decoder reads groups of 8 bits back into characters.
Assumptions and limitations
The tool encodes text as UTF-8 and shows every byte as eight bits, so characters outside the basic ASCII range span multiple bytes. The decoder expects clean groups of eight bits; stray spaces or bits that do not divide into full bytes will not decode. It handles UTF-8, not other encodings.
Worked example
“Hi!” becomes 01001000 01101001 00100001.
How to use this tool
- Type text to get its binary, or paste binary to decode it.
- Press Convert and copy the result.
About the Text to Binary Converter
The Text to Binary Converter encodes text as 8-bit binary and decodes binary back into readable text, auto-detecting which way to convert.
Who should use this tool
Students learning how characters map to bytes, developers debugging encoding issues, and educators demonstrating how computers store text. Anyone curious about the binary behind a string, or needing to convert a run of ones and zeros back into readable characters, can use it in either direction.
Benefits
- Encodes text to 8-bit binary using UTF-8 bytes
- Decodes binary back into readable characters automatically
- Auto-detects which direction to convert your input
- Runs client-side, keeping your text on your device
Practical use cases
- Learning how a character maps to its byte value
- Demonstrating UTF-8 encoding in a lesson
- Decoding a binary string back into text
- Inspecting how emoji expand into multiple bytes
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Frequently asked questions
Does it support emoji and other languages?
Yes — it uses UTF-8, so non-Latin characters and emoji are encoded across multiple bytes correctly.
How does a single emoji become several bytes of binary?
UTF-8 uses one byte for basic ASCII characters but two, three, or four bytes for others. Emoji sit high in the Unicode range, so they encode to four bytes, which appear as four groups of eight bits. That is why one emoji produces far more binary than a plain letter.
Why won't my binary string decode back to text?
The decoder reads binary in groups of eight bits, so the total number of bits must be a multiple of eight. Extra or missing bits, or characters other than 0 and 1, break the grouping. Ensure each byte is a clean eight-digit block for a successful conversion.