Technical SEO

Duplicate Content Checker

Compare two texts with highlighted matches, chart breakdown, and report download.

Use the tool

About & guide

About Duplicate Content Checker

Duplicate or near-duplicate content across pages can dilute rankings and confuse search engines about which URL to show.

Paste your page copy and a comparison text to see highlighted exact and partial matches, a uniqueness breakdown chart, and a downloadable report.

Use it to compare your draft against a competitor page, an old product description, or two URLs you plan to canonicalize.

How To Use Duplicate Content Checker

  1. 1

    Paste Your Content And Comparison Text

    Use body copy from two pages or two versions of the same article.

  2. 2

    Check Duplicate Content

    Run the check to highlight overlapping sentences and phrases.

  3. 3

    Review The Chart And Sources

    See unique vs exact vs partial percentages and matched source excerpts.

  4. 4

    Decide Next Steps

    Rewrite, noindex, canonicalize, or redirect depending on intent.

What Duplicate Content Checker Offers

Fast & Accurate Results

  • Primary content and comparison text inputs.
  • Highlighted exact and partial matches.
  • Donut chart for unique, exact, and partial overlap.

Copy-ready Output

  • Numbered match markers in the text.
  • Word and character counts.
  • Recheck, copy, and download report actions.

No Signup Required

  • Free unlimited comparisons.
  • No account.
  • Good for content audits.

Works In Your Browser

  • Texts stay in browser.
  • Not indexed or stored.
  • Confidential drafts safe.

Built For SEO Best Practices

  • Supports deduplication workflow.
  • Informs canonical decisions.
  • Pairs with Keyword Density.

Pairs With Other SEO Tools

  • Follow up with Canonical Checker.
  • Consolidate with Redirect Generator.
  • Rewrite flagged sentences for better uniqueness.

Advantages Of Duplicate Content Checker

1

Visual Overlap Review

Red highlights show exact matches; blue shows partial overlap.

2

Avoid Accidental Duplication

Catch copy-paste between category and product templates.

3

Migration Qa

Ensure new CMS content differs from legacy URLs.

4

Exportable Report

Download a text report for editors or client handoff.

Duplicate Content Checker — Frequently Asked Questions

No — this compares two texts you provide; it does not search the entire web.