ASCII Code Lookup

Summary

Type a character or a numeric code and instantly see the matching decimal, hex, octal, and binary ASCII value, plus a searchable reference table.

How it works

1. Type a single character into the lookup field.
2. The decimal, hex, octal, and binary codes for that character appear immediately.
3. Or type a number instead, like 65 or 0x41, to look up the character it represents.
4. Use the search box above the table to filter the full ASCII 32-126 reference list.
5. Click any row's copy button to copy that character to your clipboard.

Use cases

• Look up the decimal or hex code for a character while writing a parser or protocol.
• Check what character a byte value like 0x41 or 97 represents.
• Find the ASCII code for control characters and punctuation quickly.
• Teach or learn how characters map to decimal, hex, octal, and binary values.
• Copy a hard-to-type character like a backtick or pipe straight from the table.
• Debug encoding issues by confirming the exact code point of a character.

Frequently Asked Questions