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Head-to-head · Code Clone Detection Tools

NiCad vs @kongyo2/similarity-ts

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score NiCad #4 in Code Clone Detection Tools 8.8/10 Free plan Free plan✓ 1 of 3 features Visit NiCad
@kongyo2/similarity-ts #6 in Code Clone Detection Tools 8.6/10 Free plan Free plan✓ 2 of 3 features Visit kongyo2

NiCad leads on 0 checks, @kongyo2/similarity-ts on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNiCad · 8.8/10
  • Free planboth
  • Most features@kongyo2/similarity-ts · 2 of 3

NiCad scores higher on our rubric for code clone detection tools: 8.8 against 8.6 out of 10; our editors rank them #4 and #6.

On clone detection method, NiCad gives you Hybrid where @kongyo2/similarity-ts offers Ast.

NiCad is the better fit for research-grade configurable clone detection. @kongyo2/similarity-ts is the better fit for typeScript repositories needing CI clone gates.

  • NiCad fits best

    Research-grade configurable clone detection

  • @kongyo2/similarity-ts fits best

    TypeScript repositories needing CI clone gates

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Side by side

Feature NiCad 8.8/10 Visit ↗ @kongyo2/similarity-ts 8.6/10 Visit ↗
At a glance
Editor score 8.8 8.6
Ranking #4 in Code Clone Detection Tools #6 in Code Clone Detection Tools
Best for Research-grade configurable clone detection TypeScript repositories needing CI clone gates
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted
Built for Solo, Small business, Mid-market Solo, Small business
Features NiCad 1/3 · @kongyo2/similarity-ts 2/3
CI integration Not checked yet ✓ (best)
IDE integration Not checked yet —
Self-hosted option ✓ ✓
Specs
Clone detection method Hybrid Ast
Scan scope Repository Repository
Supported languages Not checked yet Not checked yet
Our review
Pros
  • Detects exact and near-miss clones across repositories
  • Supports configurable normalization, abstraction, filtering, and thresholds
  • Produces clone-pair and clone-class reports in XML and HTML
  • AST scoring compares functions, types, and classes structurally
  • Thresholds, exclusions, and scan-scope rules support tailored checks
  • JSON output and CI failure gating fit automated quality workflows
Cons
  • Command-line workflow may require Unix-like environments
  • Language availability varies by version and distribution
  • Self-hosted operation requires local setup and maintenance
  • Focused on TypeScript and related file extensions
  • No IDE integration is specified
  • Self-hosted CLI workflows require local setup and maintenance
Our verdict

NiCad is a free, open-source command-line tool for detecting exact and near-miss code clones in software systems. It is aimed at researchers, engineering teams, and developers who need configurable repository analysis rather than a hosted…

Read the review →

@kongyo2/similarity-ts is an open-source TypeScript code-similarity CLI and library for finding duplicate or structurally similar code. It is aimed at teams maintaining TypeScript repositories, especially those that want clone detection as…

Read the review →
  1. NiCadCode Clone Detection Tools 8.8Free plan
  2. @kongyo2/similarity-tsCode Clone Detection Tools 8.6Free plan

Strengths and trade-offs

  • NiCad — where it wins

    • Detects exact and near-miss clones across repositories
    • Supports configurable normalization, abstraction, filtering, and thresholds
    • Produces clone-pair and clone-class reports in XML and HTML

    Where it doesn't

    • Command-line workflow may require Unix-like environments
    • Language availability varies by version and distribution
    • Self-hosted operation requires local setup and maintenance

  • @kongyo2/similarity-ts — where it wins

    • AST scoring compares functions, types, and classes structurally
    • Thresholds, exclusions, and scan-scope rules support tailored checks
    • JSON output and CI failure gating fit automated quality workflows

    Where it doesn't

    • Focused on TypeScript and related file extensions
    • No IDE integration is specified
    • Self-hosted CLI workflows require local setup and maintenance

More comparisons

All code clone detection tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update