Text to Binary Converter
Convert text to binary (and binary back to text) using UTF-8 bytes.
Underneath every character is a number, and underneath every number is binary. Converting text to its binary representation is a staple of computer-science homework, puzzle and CTF challenges, and the occasional novelty message — and doing it by hand past a few characters is pure tedium.
This tool encodes text to binary using UTF-8 bytes, emitting space-separated 8-bit groups, and decodes binary back to text. UTF-8 means emoji and accented characters work too — they simply occupy multiple bytes.
How to use Text to Binary Converter
- 1
Choose a direction
Text → binary, or binary → text.
- 2
Enter your input
For decoding, use 8-bit groups (spaces optional).
- 3
Copy the result
Output updates as you type.
Features
- UTF-8 encoding — handles any character including emoji
- Space-separated 8-bit byte groups
- Bidirectional conversion
Frequently asked questions
Common mistakes to avoid
- Decoding binary whose length isn't a multiple of 8 — every byte needs exactly 8 bits.
- Assuming binary equals ASCII — non-ASCII characters span multiple bytes under UTF-8.
Get new tools in your inbox
One email a month with new tools, guides, and updates. No spam, unsubscribe anytime.