ASCII Code Converter

Convert text to ASCII decimal, hexadecimal and binary codes, or decode code lists back to text.

Need help with the calculation?

-Characters

-Bytes

-Mode

For beginners: how to read the result

Start with the first cardIt gives the direct answer for the current mode before the longer output text.

Use the output boxCopy the exact converted value, table, header or parsed data from the output area.

Keep sensitive data localThe calculator runs in your browser, but you should still avoid secrets that your policy forbids in tools.

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Paste your value, choose the mode if the calculator has one, and use the first result card as the direct answer. The longer output area is designed for copying into code, documentation, API tests or a spreadsheet.

What the result means

When encoding, the output lists decimal, hex and binary codes. When decoding, spaces, commas and semicolons are accepted.

What is not included

ASCII is the 0-127 range. Non-ASCII characters are shown as JavaScript character codes rather than true ASCII.

Privacy note

The interactive calculation runs in your browser. The page still should not be used with passwords, tokens or personal data that your own rules do not allow in browser tools.