An AI Scan tool is a specialized online utility that detects and displays non-printable Unicode characters hidden within text. While these characters are invisible to the naked eye, they can be a telltale sign of content generated or manipulated by an AI. 🤖

How It Works

When you paste a block of text into the tool, it analyzes the string for a range of invisible characters, including:

• Zero-width spaces: These are spaces with no width that can be used to alter text layout or embed hidden data.
• Zero-width non-joiners/joiners: These characters control how other characters are connected or separated, often used in complex scripts, but their presence can be unusual in standard English text.
• Soft hyphens: These are invisible characters that indicate a potential line break point.
• Invisible separators: Unicode includes various characters designed for a range of text-processing purposes, such as word separation or formatting, that are not visible.

The tool then highlights these symbols, so you can see them and understand the full composition of the text.

Why It’s Useful

AI models can sometimes introduce these invisible characters during the generation process, often due to how they are trained on diverse datasets or how they process complex formatting instructions. The presence of these characters, especially in unexpected places, can be a strong indicator that the text has been created by a machine rather than a human.

This tool is invaluable for journalists, educators, editors, and anyone who needs to verify the authenticity of a document or an article. By revealing these hidden markers, it helps users to distinguish between human-written and potentially AI-generated content.