ASCII Code Quick Reference

• An ASCII code reference table covering the full character set of basic ASCII (0–127) and extended ASCII (128–255). Each character is shown simultaneously in decimal, hexadecimal, binary, and octal, along with its HTML entity — an essential character-encoding reference for programmers and developers.

1. Open the tool page — no installation or download needed
2. Type a keyword such as a decimal value, hex code, character, or name into the search box to find the character you need
3. Narrow results with the charset, display range (all / printable / control), or category filters, then click any character to view its decimal, hexadecimal, binary, octal, and HTML entity details and copy it with one click

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online ASCII character table lookup tool, supports decimal, hexadecimal, binary, octal conversion, includes complete character set of basic ASCII (0-127) and extended ASCII (128-255), essential character encoding query tool for programmers.

Open the tool page — no installation or download needed Type a keyword such as a decimal value, hex code, character, or name into the search box to find the character you need Narrow results with the charset, display range (all / printable / control), or category filters, then click any character to view its decimal, hexadecimal, binary, octal, and HTML entity details and copy it with one click

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, ASCII Code Quick Reference is completely free. No download or installation required — it runs right in your browser.