Before submitting
Check a paper, spreadsheet, or PDF for forgotten comments, hidden content, and document properties.
Scan a document
Built by a student
Made for clearer documents
Hidden Word Scanner is an independent student project by Bradley Shoemaker. It started with a simple idea: students should be able to understand what is actually inside the files they receive, use, and submit.
“Student project” describes its independent creator, not a school affiliation. No school or university sponsors, operates, reviews, or endorses this website.
This project turns difficult-to-see document evidence into findings that people can review, explain, and discuss.
Document transparency
Documents should not contain invisible surprises
A file can contain text or instructions that are not obvious when you open it normally—from hidden Word formatting and spreadsheet sheets to PDF text layers, comments, metadata, and zero-width characters.
For students, these elements can affect AI tools, automated review systems, accessibility software, and academic-integrity investigations. Hidden Word Scanner helps you inspect the evidence before submitting, sharing, or relying on a file.
The scanner does not write assignments or bypass plagiarism detection. Findings are review signals, not proof of intent, and a clean scan does not guarantee that a document is safe.
Learn about hidden instructions in assignment files or review the inspection methodology and limitations.
Before you submit or share a document
- Check for unexpected hidden text or instructions.
- Review comments, revisions, metadata, and document properties.
- Find concealed PDF text and questionable redaction layers.
- Inspect hidden Excel rows, columns, and worksheets.
- Identify zero-width characters and unusual Unicode controls.
- Export a report to document what was found.
Made with student life in mind
Useful before the deadline—and after questions come up
When using a provided file
Understand whether an assignment or reference document contains instructions that are not visible in its normal view.
When something is questioned
Preserve the original, export reviewable findings, and bring evidence—not assumptions—to the conversation.