ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numeric values 0–127 to 128 characters including letters, digits, punctuation, and control codes.

Complete Reference

ASCII Table

Q: How many characters are in the ASCII table?

The standard ASCII table contains 128 characters: 33 non-printable control characters (codes 0–31 and 127) and 95 printable characters (codes 32–126).

Q: What is the ASCII code for a space?

The ASCII code for a space is 32 in decimal, 20 in hex, and 00100000 in binary.

Q: What is the ASCII code for Enter?

The Enter key produces a Carriage Return (CR), which is ASCII code 13 (decimal), 0D (hex). On Unix systems, the newline character (LF) is code 10.

Q: What is extended ASCII?

Extended ASCII refers to encodings that use values 128–255 to add additional characters beyond the standard 128. Common variants include ISO-8859-1 (Latin-1) and Windows-1252.

Q: What is the difference between ASCII and Unicode?

ASCII covers only 128 characters. Unicode is a superset that covers over one million characters across all world scripts. UTF-8, the web's standard encoding, is backward-compatible with ASCII for values 0–127.

Complete ASCII character chart for 2026. All 128 characters with decimal, hex, binary, and octal values. Searchable and filterable.

Dec	Hex	Oct	Binary	Char	Description	Type

About the ASCII Standard

ASCII (American Standard Code for Information Interchange) was published in 1963 and became the foundation of modern text encoding. It defines 128 characters using 7 bits: 95 printable characters (codes 32–126) and 33 non-printable control characters (codes 0–31 and 127) used to control terminals, printers, and data streams.

Today, ASCII lives on inside UTF-8 — the universal web encoding. Any character with a code point 0–127 has an identical single-byte representation in both ASCII and UTF-8, making them fully backward-compatible. To convert ASCII values to text, use our ASCII to Text Converter.

Related Tools

ASCII to Text

Convert decimal ASCII codes to text

Decimal to Text

Full Unicode decimal to character converter

Hex to Text

Decode hexadecimal to readable text

Binary to Text

Convert binary 0s and 1s to text

Text to Hex

Encode any text to hexadecimal

Base64 Encoder

Encode or decode Base64 strings

Frequently Asked Questions

What is ASCII?

ASCII assigns numeric values 0–127 to 128 characters including letters, digits, punctuation, and control codes. It was published in 1963 and became the basis for virtually all modern text encoding standards.

How many characters are in the ASCII table?

Standard ASCII contains exactly 128 characters: 95 printable characters (codes 32–126) and 33 non-printable control characters (codes 0–31 and 127).

What is the ASCII code for a space?

The ASCII code for a space is 32 in decimal, 20 in hex, 040 in octal, and 00100000 in binary. It is the first printable ASCII character.

What is the ASCII code for Enter / Newline?

Carriage Return (CR) is ASCII 13 (0D hex). Line Feed / Newline (LF) is ASCII 10 (0A hex). Windows uses CR+LF for line endings; Unix uses LF only; classic Mac used CR only.

What is extended ASCII?

Extended ASCII encodings use values 128–255 to add extra characters beyond the standard 128. Common variants include ISO-8859-1 (Latin-1) and Windows-1252. These are not standardised across all systems.

What is the difference between ASCII and Unicode?

ASCII covers 128 characters (English only). Unicode is a superset covering over 1 million characters across all world scripts. UTF-8 encoding is backward-compatible with ASCII for code points 0–127. Use our Decimal to Text tool for full Unicode support.