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Finds the code your AI wrote twice. Fast, offline duplicate-code detector: scan, history chart, CI gate. No AI required.
30 starsRust
Dupehound – find the code your agent wrote twice (no AI required)
by rafaepta·Jun 11, 2026·2 points·0 comments
AI Analysis
●●SolidSolve My ProblemBig Brain
History chart shows exactly when your code duplication spiked — SonarQube doesn't do this.
Strengths
- •Tree-sitter + winnowing catches renamed identifiers and changed literals, not just text matches.
- •Git history analysis reads blobs directly — no checkouts needed to track duplication over time.
- •CI gate names the original file to reuse instead of just failing the build.
Weaknesses
- •Code duplication detection already well-served by SonarQube, CodeClimate, and IDE plugins.
- •No IDE integration mentioned — requires running CLI or CI step to find issues.
Category
Target Audience
Engineering teams, backend developers
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SonarQube · CodeClimate · jscpd
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