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Binary / ASCII / Hex / Decimal / Octal Converter

Convert text to/from binary, ASCII, hex, decimal, and octal — all directions, all combinations.

Conversion

Input — Text0 chars
Output — Binary0 chars

What this tool does

Convert between every common way of representing data — plain text, binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16) and ASCII codes. Choose any direction; all 18 presets are supported. UTF-8 multibyte characters work in both directions.

Number base cheat sheet

  • Binary (base 2) — 0 and 1 only. One byte = 8 bits. The native representation of computer memory.
  • Octal (base 8) — digits 0–7. Once common (especially in Unix file permissions: 755, 644), now niche.
  • Decimal (base 10) — everyday numbers. Useful for ASCII codepoints when reading protocol specs.
  • Hexadecimal (base 16) — 0–9 plus A–F. Two hex digits encode one byte — the compact workhorse of programming (hex colours, memory addresses, hashes).

ASCII vs. UTF-8

ASCII covers codes 0–127. Anything outside that range — non-English letters, emoji, smart quotes — is encoded in UTF-8 as two or more bytes. This tool uses UTF-8 throughout, so "é" becomes C3 A9 (two bytes), not a single byte.

Formatting options

  • Space-separate bytes — makes numeric output easier to read. Turn off for concatenated strings.
  • Prefix (0x/0b/0o) — C/Python-style prefixes. Turn on if pasting into code.
  • Pad to fixed width — every byte becomes exactly 8 binary / 2 hex / 3 octal digits.
ABOUT THIS TOOL

What is Binary / ASCII / Hex Converter?

The Binary / ASCII / Hex Converter from D&D Technology is a powerful online tool designed for developers and tech enthusiasts. This tool simplifies the process of converting text across various formats, including binary, ASCII, hexadecimal, octal, and decimal. With UTF-8 compatibility, it ensures that your text retains its integrity across different encoding systems, making it ideal for a wide range of development needs.

Key benefits of this converter include its user-friendly interface and rapid conversion capabilities, allowing users to quickly switch between formats without any hassle. Whether you are debugging code, working on data representation, or simply need to convert text for different applications, this tool serves as a reliable solution. It is particularly useful for software developers, data analysts, and anyone involved in programming or data manipulation.

This converter is perfect for startups, small businesses, and enterprises looking to streamline their development processes. By providing a straightforward way to handle text conversions, it helps save time and enhances productivity. Additionally, the tool is accessible online, making it convenient for users to perform conversions anytime, anywhere.

At D&D Technology, we understand the challenges faced by developers in managing data formats. Our Binary / ASCII / Hex Converter addresses these pain points by offering a seamless experience that integrates well with your existing workflows. Start maximizing your efficiency today by using our tool to handle all your text conversion needs.

Explore the Binary / ASCII / Hex Converter now at [D&D Technology](https://www.designanddevelopment.tech/tools/binary-converter) and streamline your development tasks with ease.

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