Content Similarity & Plagiarism Checker

Compare two texts to find the similarity score and avoid SEO duplicate content.

Original Text / Source 0 words

Your Rewritten Article 0 words

0% Similarity

Analysis Complete

Your text has been compared against the original source.

Status

Unique Content

SEO Recommendation

Safe to publish

How This Plagiarism Tool Works

Our Content Similarity Checker uses advanced Bigram and Trigram string-matching algorithms (Sorensen-Dice coefficient) to detect rewritten or heavily inspired content. It is designed specifically for bloggers, copywriters, and students who need to rewrite articles and want to ensure their new piece is unique enough for search engines.

0% - 15% Similarity

Highly Unique. Excellent for SEO. Your content is vastly different from the source and safe from duplicate penalties.

16% - 40% Similarity

Moderate / Paraphrased. Acceptable, but try to change sentence structures and add your own unique opinions.

Over 40% Similarity

High Plagiarism Risk. Not recommended for SEO. You need to rewrite large chunks of the article.

Instructions:

1. Paste the original article or reference text into the "Original Text / Source" box.
2. Paste the article you have written or spun into the "Your Rewritten Article" box.
3. Click Check Similarity Score to get an instant analysis without any data leaving your browser.

* Privacy note: This tool runs entirely in your browser. Your content is never uploaded or saved to any server.