Loading…

How to use ASCII Code Lookup

Type a character to see its ASCII code, or type a code to see its character — the table updates live either way.

Frequently asked questions

What is ASCII?

American Standard Code for Information Interchange — a 7-bit character encoding standard covering 128 characters (0–127).

What are control characters?

ASCII 0–31 are non-printable control characters like NUL (0), TAB (9), LF (10), CR (13).

What is extended ASCII?

Codes 128–255 are extended ASCII — varies by code page. This table shows standard 7-bit ASCII only.

More Encoders & Decoders

Text to Octal
Encode text as octal (base 8) numbers
Unicode Encoder
Encode text to Unicode code points (\\u escape format)
Unicode Decoder
Decode Unicode escape sequences back to text
Unicode Character Lookup
Look up any Unicode character by code point or name
JWT Decoder
Decode & inspect JWT tokens (header, payload, signature)
Caesar Cipher
Encode or decode text with the classic Caesar shift cipher
Vigenère Cipher
Encrypt or decrypt text using the Vigenère polyalphabetic cipher
Atbash Cipher
Encode text using the Atbash mirror substitution cipher
Morse Code Encoder
Convert text to Morse code with audio playback support
Quoted-Printable Encoder
Encode text using MIME quoted-printable encoding for email
XML Encoder / Decoder
Encode and decode XML special characters safely
Base64URL Encoder / Decoder
URL-safe Base64 (-_ instead of +/, no padding) encode & decode

← View all Encoders & DecodersBrowse all 1,100+ tools →