ASCII Table Reference
The complete ASCII character table — all 128 characters with their decimal, hexadecimal, octal, and binary codes. Instantly searchable.
What Does This Tool Do?
ASCII (American Standard Code for Information Interchange) assigns a number to every character a computer can type — from letters and numbers to control commands. This interactive table shows all 128 ASCII characters with every code format you might need: decimal, hex, octal, and binary.
Key Features
How to Use This Tool
- Browse the full table to find the character or code you need.
- Use the search box to quickly filter by character, decimal code, or name.
- Copy the code format you need from the matching row.
How It Works
The complete 128-character ASCII table is rendered as an interactive HTML table. The search filters all rows in real time to show only those matching your search term across any column.
Common Use Cases
Frequently Asked Questions
What is ASCII?
ASCII (American Standard Code for Information Interchange) is a character encoding standard developed in the 1960s that assigns unique numbers 0-127 to characters. It's the foundation of all modern text encoding.
How do I use hex ASCII codes in HTML?
Prefix the hex code with and add a semicolon. For example, A displays "A" (hex 41 = decimal 65 = the letter A).
Related Tools
Link to This Tool
Copy and paste the code below to link to this tool from your website: