ASCII Table
Complete ASCII table with decimal, hex, octal, binary, HTML entity and character descriptions.
What is ASCII?
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numbers 0-127 to characters, including letters, digits, punctuation, and control codes.
What are ASCII control characters?
Control characters (0-31 and 127) are non-printable characters used for device control, such as Line Feed (LF, 10), Carriage Return (CR, 13), Tab (9), and Escape (27).
What is the difference between ASCII and Unicode?
ASCII has 128 characters (0-127), while Unicode supports over 140,000 characters across all writing systems. ASCII is a subset of Unicode — the first 128 Unicode code points match ASCII.
How do I type ASCII characters?
On Windows, hold Alt and type the decimal code on the numpad (e.g., Alt+65 for A). On Mac, use Option key combinations. You can also copy characters from this table.