Text to Binary Converter
Convert text to 8-bit binary, or paste binary to decode it back to text.
About Text to Binary Converter
Convert any text to 8-bit binary, or paste 0s and 1s to decode back to text. Uses ASCII/UTF-8 so letters, spaces, and most Unicode characters work - including accented text and emoji. Invalid binary (non-0/1 characters or a bit length that is not a multiple of 8) shows a clear error. Nothing leaves your device.
How to Use Text to Binary Converter
- Paste text to encode it as binary.
- Or switch to decode mode and paste binary (with or without spaces).
- Each character becomes an 8-bit group, spaced for readability.
- Click Copy to grab the result.
Text to Binary Converter Formula
Each character maps to its Unicode code point, then to binary. Example: H = 72 → 01001000. Multi-byte UTF-8 characters become multiple 8-bit groups. Spaces between bytes are only for reading - decoding accepts spaced or continuous bits.
Text to Binary Converter Examples
Hello
01001000 01100101 01101100 01101100 01101111
Letter A
A → 01000001 (ASCII 65)
Decode
01001110 01101111 → No
Common Use Cases
- Learning ASCII and binary encoding
- Puzzle and CTF-style binary messages
- Quick encode/decode checks while debugging
- Explaining UTF-8 multi-byte characters
- Decode binary clues or encode a phrase for CTF and classroom puzzles
- See how spaces and punctuation become their own byte groups while debugging
- Share a short phrase as 0s and 1s, then decode it back to prove the round-trip
Related Guides
Read the full guide
How to Use Text to Binary Converter: Complete Guide (2026) - 5 min read
Frequently Asked Questions about Text to Binary Converter
- How do I convert text to binary?
- Paste your text and each character becomes an 8-bit value. Example: A is ASCII 65 → 01000001.
- What encoding does this use?
- ASCII/UTF-8. Basic English letters are one byte; accented characters and emoji may use multiple UTF-8 bytes.
- Can I decode binary back to text?
- Yes. Paste bits with or without spaces and switch to decode mode.
- Why is each character 8 bits?
- One byte (8 bits) covers 0-255 and keeps output aligned for decoding. UTF-8 characters outside basic ASCII span multiple bytes.
- Is my text uploaded?
- No. Conversion runs entirely in your browser. Related tools: Base64 Encoder / Decoder and UUID Generator.
- What if my binary is invalid?
- Decode input must be only 0, 1, and whitespace, and the total bit length must be a multiple of 8. Non-binary characters or a bad length show a clear error instead of a blank result.
- Is binary encoding the same as encryption?
- No. Encoding is not encryption; binary text is trivial to decode with this same tool. For ASCII-safe transport of arbitrary text, Base64 Encoder / Decoder is usually more compact and practical than binary digits.
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