UtilityBaseDeveloper Tools
Binary Translator
Convert text to binary and back, plus a decimal/hex/binary/octal converter.
Updated July 7, 2026
How to use the binary translator
- 1Type text in the left box — its UTF-8 binary appears on the right instantly.
- 2Or paste 8-bit binary groups on the right to decode them to text.
- 3For numbers, enter a value below and pick its base — all four bases display at once.
- 4Copy any representation with the copy buttons.
Common uses
- Checking CS homework answers for text and number conversions
- Decoding binary strings from puzzles and CTF challenges
- Converting between decimal, hex, and binary for networking or low-level code
- Understanding how UTF-8 encodes multi-byte characters
Frequently asked questions
Why does each letter become 8 digits?
Computers store text as bytes — units of 8 bits. In UTF-8 encoding, every ASCII character (a–z, digits, punctuation) is exactly one byte, so 'h' is 01101000. Characters beyond ASCII, like é or emoji, encode as two to four bytes.
What's the relationship between binary and hex?
Hexadecimal is compressed binary: one hex digit represents exactly four bits, so a byte is always two hex digits (11111111 = FF = 255). That's why programmers write memory and colors in hex — it's binary without the eye strain.
My binary won't decode. What's the format?
Use groups of 8 bits (0s and 1s) separated by spaces: 01101000 01101001 decodes to 'hi'. An unspaced stream works too if its length is a multiple of 8. Anything else — 7-bit groups, stray characters — will fail the length check.
Why does 'A' equal 65?
That's its ASCII/Unicode code point — the number assigned to the character in the standard table. Capital letters run 65–90, lowercase 97–122, which is why case differs by exactly one bit (32).
About this tool
The binary translator converts text to binary and binary back to text live in both directions, using proper UTF-8 encoding so emoji and accented characters survive the round trip. Each character becomes one or more 8-bit bytes, displayed as space-separated groups the way binary is conventionally written. Below it, a number base converter takes any value in decimal, binary, hexadecimal, or octal and shows all four representations at once — the everyday companion for CS homework, networking subnet work, low-level debugging, and understanding what's actually stored in memory.
Like everything on UtilityBase, the binary translator runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.
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