Text to Binary Converter β Binary, Decimal & Hex
Convert text to binary and back. See UTF-8 bytes as binary, decimal and hex, or decode 8-bit groups into text. Fast, free and fully private.
π Runs entirely in your browser. Your input and output are never sent to a server or stored β fully private.
UTF-8, 8 bits per byte. Binary, decimal and hex bytes are space-separated.
About this tool
Convert text into binary and binary back into text in an instant, with every character encoded as UTF-8 bytes. Alongside the 8-bit binary you also see the decimal and hexadecimal value of each byte, which makes this a hands-on way to learn how computers actually store letters, emoji and symbols. Paste in either direction and the conversion happens immediately in your browser, so nothing you type is ever uploaded or saved.
Frequently asked questions
How is text turned into binary?
Each character is first encoded as one or more bytes using UTF-8, and every byte is then written out as eight bits. A plain English letter like A fits in a single byte, 01000001, while accented letters, emoji and other scripts take two to four bytes each. The decimal and hexadecimal columns show those very same bytes in other common number bases.
Does it work with emoji and other languages?
Yes. Because the tool uses UTF-8, it handles any character, including accented Latin letters, Chinese, Japanese, Korean, Arabic and emoji. These simply take more than one byte each, so you will see several groups of eight bits per character. Converting binary back to text reassembles those bytes into the original string exactly as it was.
Is my text sent to a server?
No. The conversion runs entirely in your browser with JavaScript, so whatever you paste β text or binary β stays on your device and is never uploaded, logged or stored. It keeps working offline once the page has loaded, which makes it perfectly safe for private notes or sensitive data.