ASCII Converter

Convert plain text into ASCII codes and decode ASCII decimal, hexadecimal, or binary values back to text instantly.

Convert Text to ASCII

Enter text and choose the output code format. Non-ASCII characters can be replaced with ? if strict ASCII output is enabled.

Input Text

Characters: 0

Output Format

Delimiter

Custom Delimiter

Strict ASCII only (replace unsupported chars)

ASCII Output

Paste ASCII codes separated by spaces, commas, new lines, or custom symbols, then decode back to readable text.

ASCII Input

Ready to decode

Input Format

Live decode

Text Output

All conversion happens directly in your browser. No data is uploaded to external servers.

Convert text to ASCII and ASCII back to text with decimal, hex, and binary support.

Handle short snippets or large text blocks with immediate conversion and copy/download actions.

Switch formats and delimiters to match code examples, logs, datasets, or integration workflows.

ASCII is a standard character encoding that maps numbers to letters, digits, punctuation, and control characters.

This tool focuses on ASCII range values (0-127). You can enable strict mode to replace unsupported characters with ?.

Yes. The decoder supports auto-detection or manual selection for decimal, hex, and binary ASCII input.

There is no upload limit because files are not sent anywhere. Browser memory is the practical limit for very large inputs.