Benchmarks

How jscpd v5 compares to other copy/paste detectors — speed, format coverage, and token efficiency.

jscpd v5 is benchmarked against five other copy/paste detection tools (jscpd-rs, Duplo, Simian, PMD CPD, and Fallow) across three dimensions:

Detection Speed — jscpd@5 completes in 84ms: the only tool under 100ms, 428× faster than PMD CPD
Multi-Format Detection — duplicate detection across Vue, Svelte, Astro, and Markdown blocks
AI Token Efficiency — the ai reporter uses ~79% fewer tokens than the default console output

All benchmarks include full methodology and raw data.

OpenMetrics Reporter

Generate OpenMetrics reports for GitLab CI metrics integration.

Detection Speed

Benchmark comparison of jscpd@5 vs 5 other CPD tools — speed and detection accuracy.