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jscpd vs Simian Similarity Analyzer

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jscpd

7.4#1 in code clone detection toolsFree plan
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What both publish

FactjscpdSimian Similarity Analyzer
LicenseThe project and its published packages use the permissive MIT license.Simian Similarity Analyzer is licensed under the Apache Software License, Version 2.0.
MakerThe site credits Andrey Kucherenko and contributors; it does not state a headquarters or founding year in the pages opened.Quandary Peak Research is described on its about page as a Los Angeles-based consulting group.
Purposejscpd scans source code for duplicate code and can fail a build when duplication exceeds a configured threshold.Simian scans source files and reports duplicated blocks of code across codebases.

jscpd plans

  • jscpdFree
  • jscpd open-source distributionFree

Simian Similarity Analyzer plans

  • Simian Similarity AnalyzerFree

Pick jscpd if…

jscpd suits developers who want to identify repeated code in repositories during local work or CI/CD. Its threshold checks and CI integrations may be useful for teams that want builds to flag excess duplication.

Pick Simian Similarity Analyzer if…

Simian suits developers who want repository-level duplicate-code checks that can run locally, from scripts, or in a build pipeline. It may also fit teams seeking configurable text-based clone detection without a paid license.

Charts they share