Convert text to binary, hexadecimal, octal, and decimal formats.
The Binary & Hex Text Converter lets you instantly convert text to binary, hexadecimal, octal, and decimal representations, and convert back from any of those formats to plain text. It is an essential tool for developers, students, security researchers, and anyone working with low-level data encoding, computer science concepts, or network protocols.
Binary encoding represents text characters as sequences of 0s and 1s. Every character in a text string has a corresponding numeric code — its ASCII or Unicode code point — and binary encoding expresses that code in base-2 notation. For example, the uppercase letter 'A' has ASCII code 65, which is represented as 01000001 in binary (eight bits, or one byte). Each character in a string is converted to its own 8-bit binary sequence, and the sequences are typically separated by spaces for readability.
Binary is the fundamental language of computers. All data stored and processed by a computer — text, images, audio, video, programs — is ultimately represented as binary. Understanding binary encoding helps you understand how computers store and manipulate text at the lowest level, which is foundational knowledge for computer science, programming, and cybersecurity.
This tool uses ASCII encoding for standard characters (codes 0–127) and extends to Unicode code points for international characters and symbols. Each character is padded to 8 bits for consistency, making it easy to count characters and identify individual bytes in the binary output.
Hexadecimal (hex) uses base-16 notation with the digits 0–9 and the letters A–F to represent values from 0 to 15. It is a compact and human-readable way to represent binary data — each hex digit represents exactly four binary bits (a nibble), so two hex digits represent one byte. This makes hex much more concise than binary while still maintaining a direct correspondence to the underlying bit patterns.
Hexadecimal is ubiquitous in computing and programming. Memory addresses, color codes in CSS and design tools, cryptographic hashes, network MAC addresses, and raw byte data in debugging tools are all commonly expressed in hex. Being able to convert between text and hex is a fundamental skill for developers working with low-level systems, networking, or security.
In this tool, each character is converted to its ASCII code and then expressed as a two-digit uppercase hex value, padded with a leading zero if necessary. The hex values are separated by spaces for readability, making it easy to identify individual characters in the output.
Converting text to binary, hex, octal, or decimal is instant and requires no technical setup.
Binary and hex conversion is useful across a wide range of technical and educational contexts.
When working with binary output, remember that each group of eight digits (separated by spaces) represents one character. You can count the groups to determine the number of characters in the original text, or identify specific characters by their position in the sequence. This is useful for verifying that a binary string represents the expected text before using it in a program or protocol.
Hexadecimal is generally the most practical format for working with raw byte data because it is much more compact than binary while still being directly mappable to individual bytes. Two hex digits always equal one byte, which makes it easy to count bytes, identify byte boundaries, and compare values. When debugging network packets or binary file formats, hex is almost always the preferred representation.
When decoding binary or hex back to text, make sure the values are space-separated as the tool expects. If you have a continuous binary string without spaces (e.g., from a file or protocol), you will need to manually insert spaces every 8 characters for binary or every 2 characters for hex before pasting it into the decode field.
Webutilbox's Binary & Hex Text Converter is fast, free, and completely private. The tool converts to all four number bases simultaneously, saving you time compared to tools that only handle one format at a time. The real-time conversion means you see results instantly as you type, making it ideal for exploratory work and learning.
The bidirectional conversion support — being able to decode binary, hex, octal, or decimal back to text — makes this tool useful for both encoding and decoding tasks. Whether you are a student learning about number systems, a developer debugging a protocol, or a security researcher analyzing encoded data, this tool provides everything you need in a clean, straightforward interface.
Your privacy is our priority. All processing happens entirely in your browser using JavaScript. No files, data, or inputs are ever uploaded to any server. Everything stays on your device, making this tool completely safe to use with sensitive content.