Side by side
JPlag vs Simian Similarity Analyzer
Both stand on code duplication detection tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Visit JPlag 
Free plan LinuxMacWindows
Choose Simian if you need an open-source, configurable duplicate-code scanner that can run locally or in a build pipeline. It requires a Java runtime, and users seeking IDE integration should consider that the listed integration options do not include one.
Visit Simian Similarity AnalyzerThe facts
| JPlag | Simian Similarity Analyzer | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Linux, Mac, Windows |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | jplag.github.io | simian.quandarypeak.com |
| On code duplication detection tools | #14 of 18 | #10 of 18 |
JPlag: what it does well
Simian Similarity Analyzer: what it does well
- Scans source code, markup, stylesheets, Markdown, and plain text.
- Lists support for many languages, including Java, Python, and TypeScript.
- Can run locally, in scripts, or in build pipelines.
- Offers plain text, XML, YAML, and editor-friendly results.
- Configuration includes file patterns and duplicate-line thresholds.
What to know first
- Requires the Java Virtual Machine; the generated JAR requires JDK 8 or newer.
- The maker directs users to Stack Overflow for support.
- No IDE integration is listed.
Alternatives to JPlag Alternatives to Simian Similarity Analyzer The whole list