Text Similarity Checker
Compare two texts to find similarity, detect plagiarism, or identify paraphrasing
Text 1
Text 2
Similarity Metrics
Enter both texts to see similarity metrics
- • Uses 4 different similarity algorithms
- • Combines results for accurate analysis
- • 100% privacy - all processing local
- • Real-time comparison as you type
Text Similarity Checker - Detect Plagiarism & Paraphrasing Instantly
Our free text similarity checker is a powerful tool for comparing two texts, detecting plagiarism, identifying paraphrasing, and measuring content similarity. This plagiarism detector uses advanced algorithms including Jaccard similarity, Cosine similarity, and Levenshtein distance to provide accurate similarity analysis. Perfect for educators checking student work, content creators verifying originality, and writers ensuring unique content.
Why Use a Text Similarity Checker?
Whether you're an educator verifying student assignments, a content creator checking for duplicate content, or a writer ensuring originality, our similarity checker helps you:
- Detect plagiarism in academic papers and assignments
- Identify paraphrasing and rewritten content
- Compare documents to find similarities and differences
- Verify content originality before publication
- Measure similarity percentages with multiple algorithms
Plagiarism Detector - Multiple Algorithm Support
Our plagiarism detector uses four different similarity algorithms to provide comprehensive analysis:
- Jaccard Similarity: Compares word sets to measure overlap between texts
- Cosine Similarity: Analyzes word frequency vectors for semantic similarity
- Levenshtein Distance: Calculates character-level edit distance between texts
- Word Overlap: Measures percentage of common words between texts
The tool combines these algorithms using a weighted approach to provide an accurate overall similarity score, making it one of the most reliable text comparison tools available.
Paraphrase Detector - Identify Rewritten Content
Our paraphrase detector is particularly effective at identifying rewritten or paraphrased content. Unlike simple word matching, our algorithms analyze:
- Semantic similarity: Detects similar meaning even with different word choices
- Structural patterns: Identifies similar sentence structures and organization
- Content flow: Analyzes how ideas are presented and connected
This makes our paraphrase checker invaluable for educators detecting AI-generated or paraphrased content in student submissions.
Privacy-First Similarity Checker - Your Data Stays Local
Unlike many similarity checkers that upload your content to external servers, our tool processes all analysis entirely in your browser. This means:
- Complete privacy: Your texts never leave your device
- No registration required: Use the tool instantly without signing up
- No limits: Compare as many texts as you need
- Secure: Perfect for sensitive academic or proprietary content
Free Text Comparison Tool - Perfect for All Use Cases
Our text comparison tool is completely free and suitable for various applications:
- Educators: Check student assignments for plagiarism or AI-generated content
- Content Creators: Verify originality before publishing articles or blog posts
- Writers: Ensure your content is unique and avoid accidental duplication
- Researchers: Compare research papers and documents for similarity
- Businesses: Verify that outsourced content is original
Try our Text Similarity Checker today - the free, privacy-focused tool trusted by educators, content creators, and writers worldwide. Compare texts, detect plagiarism, identify paraphrasing, and ensure content originality, all processed securely in your browser.