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Head-to-head · Code Clone Detection Tools

NiCad vs QuickDup

  • 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
QuickDup #7 in Code Clone Detection Tools 8.5/10 Open source ✓ 2 of 3 features Visit QuickDup

NiCad leads on 0 checks, QuickDup 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 planonly NiCad
  • Most featuresQuickDup · 2 of 3

NiCad scores higher on our rubric for code clone detection tools: 8.8 against 8.5 out of 10; our editors rank them #4 and #7.

NiCad is the better fit for research-grade configurable clone detection. QuickDup is the better fit for teams reviewing clones in GitHub pull requests.

  • NiCad fits best

    Research-grade configurable clone detection

  • QuickDup fits best

    Teams reviewing clones in GitHub pull requests

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Side by side

Feature NiCad 8.8/10 Visit ↗ QuickDup 8.5/10 Visit ↗
At a glance
Editor score 8.8 8.5
Ranking #4 in Code Clone Detection Tools #7 in Code Clone Detection Tools
Best for Research-grade configurable clone detection Teams reviewing clones in GitHub pull requests
Pricing model Free Free
Starting price Free plan Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Self-hosted Self-hosted
Platforms Windows, macOS, Linux Windows, macOS, Linux
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market
Features NiCad 1/3 · QuickDup 2/3
CI integration Not checked yet ✓ (best)
IDE integration Not checked yet —
Self-hosted option ✓ ✓
Specs
Clone detection method Hybrid Hybrid
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
  • Combines structural fingerprints with token-similarity scoring
  • Adds Git diff, commit-range, caching, and threshold controls
  • Publishes findings as GitHub Actions pull-request annotations
Cons
  • Command-line workflow may require Unix-like environments
  • Language availability varies by version and distribution
  • Self-hosted operation requires local setup and maintenance
  • No IDE integration
  • Findings are candidates, not definitive semantic classifications
  • Requires self-hosted command-line and CI setup
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 →

QuickDup is an open-source command-line tool for detecting likely code clones in source directories or individual files. It is aimed at developers and engineering teams that review duplication across repositories, particularly teams using…

Read the review →
  1. NiCadCode Clone Detection Tools 8.8Free plan
  2. QuickDupCode Clone Detection Tools 8.5Open source

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

  • QuickDup — where it wins

    • Combines structural fingerprints with token-similarity scoring
    • Adds Git diff, commit-range, caching, and threshold controls
    • Publishes findings as GitHub Actions pull-request annotations

    Where it doesn't

    • No IDE integration
    • Findings are candidates, not definitive semantic classifications
    • Requires self-hosted command-line and CI setup

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