Control Character Cleaner

Summary

Paste text to instantly strip null bytes and invisible ASCII control characters (0-31), keeping newlines and tabs intact.

How it works

1. Paste or type your text in the input box on the left.
2. The tool instantly removes null bytes and control characters (ASCII 0–8, 11–12, 14–31).
3. Newlines (LF/CR) and tabs are preserved by default.
4. Review the cleaned output on the right and check the character stats.
5. Click "Copy Cleaned Text" to copy the result to your clipboard.

Use cases

• Clean up text copied from PDFs that contain hidden null bytes.
• Sanitize data exported from legacy databases before importing elsewhere.
• Fix garbled strings from API responses that include stray control codes.
• Prepare source code or config files that fail validation due to invisible characters.
• Remove hidden characters that cause unexpected behavior in spreadsheets.
• Strip control codes from log files before text analysis.

Frequently Asked Questions