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Head-to-head · Code Clone Detection Tools

QuickDup vs semdup

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score QuickDup #7 in Code Clone Detection Tools 8.5/10 Open source ✓ 2 of 3 features Visit QuickDup
semdup #8 in Code Clone Detection Tools 8.4/10 Open source ✓ 2 of 3 features Visit semdup

QuickDup leads on 0 checks, semdup on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreQuickDup · 8.5/10

QuickDup scores higher on our rubric for code clone detection tools: 8.5 against 8.4 out of 10; our editors rank them #7 and #8.

On clone detection method, QuickDup gives you Hybrid where semdup offers Semantic.

QuickDup is the better fit for teams reviewing clones in GitHub pull requests. semdup is the better fit for semantic duplicate detection with local inference.

  • QuickDup fits best

    Teams reviewing clones in GitHub pull requests

  • semdup fits best

    Semantic duplicate detection with local inference

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Side by side

Feature QuickDup 8.5/10 Visit ↗ semdup 8.4/10 Visit ↗
At a glance
Editor score 8.5 8.4
Ranking #7 in Code Clone Detection Tools #8 in Code Clone Detection Tools
Best for Teams reviewing clones in GitHub pull requests Semantic duplicate detection with local inference
Pricing model Free Free
Starting price Open source Open source
Free plan Not checked yet Not checked yet
Free trial — —
Deployment Self-hosted Self-hosted
Integrations 1 integrations 2 integrations
Built for Solo, Small business, Mid-market Solo, Small business
Features QuickDup 2/3 · semdup 2/3
CI integration ✓ ✓
IDE integration — Not checked yet
Self-hosted option ✓ ✓
Specs
Clone detection method Hybrid Semantic
Scan scope Repository Repository
Supported languages Not checked yet Not checked yet
Our review
Pros
  • Combines structural fingerprints with token-similarity scoring
  • Adds Git diff, commit-range, caching, and threshold controls
  • Publishes findings as GitHub Actions pull-request annotations
  • Finds semantic duplicates beyond token-level similarity
  • Supports local CPU or CUDA inference with ONNX
  • Automates repository scans through GitHub Actions
Cons
  • No IDE integration
  • Findings are candidates, not definitive semantic classifications
  • Requires self-hosted command-line and CI setup
  • Self-hosted installation adds deployment responsibility
  • Amazon Bedrock embeddings may incur separate AWS charges
  • Language support is limited to the listed programming languages
Our verdict

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 →

semdup is an open-source command-line tool for identifying near-duplicate source code by comparing semantic meaning rather than token sequences. It indexes functions or code blocks, stores embeddings locally, and reports duplicate clusters…

Read the review →
  1. QuickDupCode Clone Detection Tools 8.5Open source
  2. semdupCode Clone Detection Tools 8.4Open source

Strengths and trade-offs

  • 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

  • semdup — where it wins

    • Finds semantic duplicates beyond token-level similarity
    • Supports local CPU or CUDA inference with ONNX
    • Automates repository scans through GitHub Actions

    Where it doesn't

    • Self-hosted installation adds deployment responsibility
    • Amazon Bedrock embeddings may incur separate AWS charges
    • Language support is limited to the listed programming languages

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