kucherenko/jscpd
by Various
Copy/paste detector for source code. 220+ languages, Rust engine, SARIF/HTML/badge reporters, GitHub Action, MCP server for AI agents.
MCP
kucherenko/jscpd
Added 21 Sept 2026
Overview
Copy/paste detector for source code. Supports 220+ languages with a Rust engine. Reports via SARIF, HTML, and badges. Integrates as a GitHub Action and MCP server for AI agents.
Best for
Best for
Teams that want to automate duplicate code detection across many languages
Use cases
- Detect duplicated code in CI pipelines
- Generate HTML reports for code review
- Expose duplication metrics to AI agents via MCP
How to use
Install
npx jscpd .Tools exposed
jscpd-rs
Tested with
VS Code
Notes
Copy/paste detector for source code. Supports 220+ languages with a Rust engine. Reports via SARIF, HTML, and badges. Integrates as a GitHub Action and MCP server for AI agents.
6,251 stars on GitHub. Last updated 2026-09-21. Licensed MIT.
Use cases
- Detect duplicated code in CI pipelines
- Generate HTML reports for code review
- Expose duplication metrics to AI agents via MCP
Pros
- Fast Rust engine
- Broad language support
- Multiple output formats
Cons
- Requires configuration for false positive control
- Primarily detects exact or near-exact duplication, not semantic similarity
- MCP server may require additional setup
Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.
Pros
- Fast Rust engine
- Broad language support
- Multiple output formats
Cons
- Requires configuration for false positive control
- Primarily detects exact or near-exact duplication, not semantic similarity
- MCP server may require additional setup
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