ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numeric values from 0 to 127 to characters. It includes English letters (A-Z, a-z), digits (0-9), punctuation marks, and control characters. ASCII is the foundation of most modern character encoding systems.

What is the ASCII value of the letter A?

The uppercase letter 'A' has an ASCII decimal value of 65, a hexadecimal value of 41, and a binary value of 01000001. The lowercase 'a' has a decimal value of 97, hex 61, and binary 01100001. The difference of 32 between uppercase and lowercase is consistent across all letters.

What are ASCII control characters?

ASCII control characters are codes 0-31 and 127, which represent non-printable instructions like line feed (10), carriage return (13), tab (9), and backspace (8). These were originally designed for controlling teletype machines and are still used in modern computing for text formatting.

How is ASCII different from Unicode?

ASCII is a 7-bit encoding that supports 128 characters, primarily English letters and symbols. Unicode is a much larger standard that supports over 140,000 characters across virtually all writing systems. The first 128 Unicode code points are identical to ASCII, making ASCII a subset of Unicode.

Can I convert extended ASCII characters (128-255)?

This tool focuses on standard ASCII (0-127). Extended ASCII (128-255) is not a single standard — different systems use different encodings for these values (ISO-8859-1, Windows-1252, etc.). For consistent results, the tool handles the universally standard 7-bit ASCII range.

How do I enter multiple ASCII codes for conversion?

In the 'ASCII to Text' tab, enter decimal ASCII codes separated by spaces. For example, typing '72 101 108 108 111' will convert to 'Hello'. Each number must be a valid ASCII code between 0 and 127.

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ASCII Converter

An ASCII converter transforms text into numeric ASCII codes (decimal, hex, and binary) and decodes ASCII codes back to text. It shows each character's decimal, hexadecimal, and binary representation in a detailed breakdown table, making it useful for learning and debugging.

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What is ASCII Converter?

An ASCII converter is a tool that translates text characters into their corresponding ASCII numeric codes (decimal, hexadecimal, and binary) and decodes ASCII codes back into readable text.

Complementary Tools

These tools work great alongside ASCII Converter:

Unicode Character Lookup Number Base Converter

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The ASCII converter is an essential tool for anyone working with character encoding, from students learning about ASCII tables to developers debugging low-level data. Its detailed character breakdown with decimal, hex, and binary values makes it more than just a converter — it's a complete ASCII reference tool. With real-time conversion and a scrollable table, exploring ASCII encoding has never been easier.

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