Highlight Duplicate Sections

Identify paragraphs that are duplicated across two documents. Useful for detecting copied content or overlapping sections.

Example

Input

Paragraph one.

Paragraph two.

Output

=== DUPLICATE SECTIONS (1) ===
Paragraph one.

How Highlight Duplicate Sections Works

Identify paragraphs that are duplicated across two documents. Useful for detecting copied content or overlapping sections.

This tool runs entirely in your browser — no data is sent to any server. Paste your text, click Run, and get your result instantly. You can also chain this tool with others using the pipeline feature: run Highlight Duplicate Sections, then continue with a related tool to build a multi-step text workflow.

Related Tools

Compare Paragraphs

Compare two documents paragraph by paragraph.

Remove Duplicate Paragraphs

Remove repeated paragraphs, keeping the first occurrence.

Document Diff

Full diff between two documents.

TextRefinery is a free, open-source text processing toolkit. Learn more about regular expressions and text processing on the web.