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CodeMatch
What it is
CodeMatch is a Windows program from SAFE Corporation that compares source files across two directories, including subdirectories, to surface possible plagiarism. It ranks file pairs by correlation scores from 0 to 100, helping an examiner narrow many combinations to a smaller review set. Matching methods examine statements, comments and strings, instruction sequences, and identifiers. Detailed HTML reports show the material behind high correlations, while a database can produce an HTML summary report. SAFE also describes uses such as finding open-source code inside proprietary software, assessing common authorship, and identifying shared standard algorithms. Listed languages include C, C++, C#, Java, JavaScript, Python, SQL, Swift, Verilog, and VHDL; SAFE says requested languages can usually be added within days. The maker says CodeMatch assists expert review rather than precisely pinpointing plagiarism. A press release allows no-charge comparison of up to 1 megabyte, while the product is also described as paid with a free trial.
For and against
For
- Ranks file pairs from 0 to 100
- Compares directories and subdirectories
- Detailed HTML evidence reports
- Multiple matching methods
- Supports many programming languages
Against
- Does not precisely pinpoint plagiarism
- Windows platform only
- No CodeMatch price is listed
- Free use limited to 1 megabyte
The verdict
CodeMatch provides ranked similarity results and report details for expert source-code review. It can narrow investigations across many files, but its own limitation means conclusions still require an examiner.
Who it suits
It suits examiners and reviewers comparing repositories or directories for possible code reuse. Windows users can use its ranked scores and reports to focus expert analysis.
On the record
- Comparison methods
- CodeMatch uses statement, comment/string, instruction-sequence, and identifier matching algorithms to score file similarity.safe-corp.com · read 8 Oct 2026
- Directory comparisons
- CodeMatch compares files across two directories and can include their subdirectories.safe-corp.com · read 8 Oct 2026
- Download availability
- The maker’s software download page offers downloads for CodeSuite, CodeSuite-LT, CodeSuite-AC, DocMatch, HTML Preprocessor, and CodeMeasure, but does not list CodeMatch.safe-corp.com · read 8 Oct 2026
- Free usage limit
- A SAFE press release says CodeMatch can be used at no charge to compare up to 1 megabyte of source code.safe-corp.com · read 8 Oct 2026
- Intended users
- SAFE describes CodeMatch as a tool for lawyers, technical experts, and expert witnesses investigating potentially copied source code.safe-corp.com · read 8 Oct 2026
- Interpretation limit
- SAFE says CodeMatch helps experts find possible plagiarism but does not precisely pinpoint plagiarized code.safe-corp.com · read 8 Oct 2026
- Language requests
- SAFE says supporting new languages is simple and quick and that it will usually add a requested language within days.safe-corp.com · read 8 Oct 2026
- Languages
- The product page lists support for languages including C, C++, C#, Java, JavaScript, Python, SQL, Swift, and TypeScript, and says new language support can usually be added within days on request.safe-corp.com · read 8 Oct 2026
- Limitation
- The maker says CodeMatch assists an expert in finding potentially plagiarized code and does not precisely pinpoint plagiarism.safe-corp.com · read 8 Oct 2026
- Maker
- The product page identifies SAFE Corporation as the maker through its site branding and product navigation.safe-corp.com · read 8 Oct 2026
- Matching methods
- The algorithms page describes statement, comment and string, instruction sequence, and identifier matching methods.safe-corp.com · read 8 Oct 2026
- Other uses
- The maker says CodeMatch can help find open-source code in proprietary code, determine common authorship, and discover shared standard algorithms.safe-corp.com · read 8 Oct 2026
- Platform
- A SAFE press release states that CodeMatch runs on a personal computer using Windows.safe-corp.com · read 8 Oct 2026
- Pricing availability
- The maker’s sales page lists license purchase links for CodeSuite, CodeSuite-LT, CodeSuite-AC, and DocMatch, but does not list CodeMatch pricing.safe-corp.com · read 8 Oct 2026
- Purpose
- CodeMatch compares source code files across directories and subdirectories, ranking the most highly correlated file pairs to help locate possible plagiarism.safe-corp.com · read 8 Oct 2026
- Reports
- CodeMatch creates a database exportable to an HTML summary report, with detailed HTML reports showing the statements, comments, strings, identifiers, or instruction sequences behind high correlations.safe-corp.com · read 8 Oct 2026
- Scoring
- CodeMatch assigns file pairs correlation scores from 0 to 100 and ranks pairs by score for review.safe-corp.com · read 8 Oct 2026
- Support
- The maker invites users to contact it if a needed programming language is not listed and says it will usually add support within days.safe-corp.com · read 8 Oct 2026
