Code Similarity Checker

Compare two documents or code files to detect similarities using the MOSS algorithm

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About This Tool

The MOSS Online Checker is a powerful tool that implements the Stanford MOSS (Measure of Software Similarity) algorithm to detect similarities between two documents or code files. Upload two files (text documents, source code, essays, etc.) and configure analysis parameters to get a detailed similarity report showing matching sections, percentage similarity, and highlighted differences. This tool is perfect for educators checking student assignments, developers comparing code, or anyone needing to detect potential plagiarism.

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How to Use

Upload the first document/file in the 'Document 1' area
Upload the second document/file in the 'Document 2' area
Configure analysis options (language, sensitivity, etc.)
Click 'Check Similarity' to process
View the detailed similarity report with highlighted matches

Frequently Asked Questions

Find Quick Answers

What types of files can I compare?

You can compare text-based files including .txt, .doc, .docx, .pdf, .java, .py, .cpp, .js, .html, .css, and other programming language files. The tool extracts and analyzes text content.

How accurate is the similarity detection?

The tool uses the proven MOSS algorithm which is highly accurate for detecting structural and textual similarities. It's widely used in academic institutions for plagiarism detection.

Is my data secure?

Yes, all uploaded files are processed securely and temporarily. No files are stored permanently on our servers after processing completes.

What languages does it support for code analysis?

The tool supports all major programming languages including Python, Java, JavaScript, C++, C#, PHP, Ruby, and more through language-specific parsing.

Can I compare more than two files?

Currently, the tool compares exactly two files at a time. For comparing multiple files, you would need to run multiple pairwise comparisons.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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