Text to Binary Converter
Convert text to binary, hex, decimal, and octal in one click.
What is it?
A **text to binary converter** is a tool that translates human-readable text into machine-readable number formats: binary (base 2), hexadecimal (base 16), decimal (base 10), and octal (base 8). Each character in your text is first mapped to its ASCII or Unicode code point, then expressed in the chosen numeral system. Binary is the language of computers. Every letter, digit, or symbol you type is ultimately stored as a sequence of 0s and 1s inside a processor or memory chip. Understanding this encoding layer helps developers debug data formats, understand network packets, and work with low-level systems programming. This free, browser-based converter handles all four directions simultaneously: type text and see binary, hex, decimal, and octal all at once. Or paste any encoded value and recover the original text. All processing happens locally in your browser — your data never leaves your device.
How to use it
- Type or paste your text into the "Text" field on the left.
- The tool instantly shows the binary, hexadecimal, decimal, and octal equivalents.
- To decode, paste a binary string (space-separated 8-bit groups) or hex values into any encoding field.
- Use the Copy button next to each output field to copy that encoding to your clipboard.
- Toggle "Include spaces" to control whether output groups are space-separated for readability.
Why use this tool
Whether you are a student learning about computer science, a developer debugging byte streams, or a curious person wondering how computers actually store text, this tool gives you instant, accurate results across all four number bases. The converter follows the ASCII standard for standard characters and UTF-8 encoding for Unicode characters, making it compatible with virtually every use case. The four-way simultaneous display saves time — instead of running multiple tools, you see everything at once. Because all computation runs locally in your browser, this tool is also privacy-safe. Sensitive strings such as passwords, API keys, or personal data are never transmitted to any server.
Frequently asked questions
How is text converted to binary?
Each character is mapped to its ASCII or Unicode code point (a number). That number is then written in base 2 (binary). For example, the letter "A" has the ASCII code 65, which is 01000001 in 8-bit binary.
What is the difference between binary, hexadecimal, decimal, and octal?
They are all ways to represent the same number using different bases. Decimal uses digits 0–9 (base 10), binary uses 0–1 (base 2), octal uses 0–7 (base 8), and hexadecimal uses 0–9 plus A–F (base 16). Hex is popular in computing because one hex digit maps exactly to four binary bits.
Can this tool handle emojis and special characters?
Yes. The tool uses UTF-8 encoding, so it correctly handles any Unicode character including emojis, accented letters, Chinese characters, and more. Multi-byte characters will produce multiple byte groups in the output.
Why are binary values written in 8-bit groups?
A byte is 8 bits, and one byte typically represents one ASCII character. Grouping binary output into 8-bit chunks makes it easier to read and verify individual characters.
Is my text sent to any server?
No. All conversion logic runs entirely in your browser using JavaScript. Your text never leaves your device, making this tool completely private.