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Best Fallow Alternatives in 2026

Freemium#4 of 18 in Code Duplication Detection Tools

The top Fallow alternatives are jscpd, PMD and Avidemux: 15 code duplication detection tools our editors would look at instead of Fallow, in our ranking order.

6.9/10Editor score
Fallow6.9 Visit Fallow

Fallow: A free TypeScript and JavaScript duplication scanner with CI gates and optional paid runtime insights. Where it falls short: analysis is limited to TypeScript and JavaScript projects.

Switching from Fallow? For most code duplication detection tools buyers the best Fallow alternative is jscpd, built for teams needing broad, CI-ready clone analysis. JPlag offers the most supported languages (20).

Why People Look for a Fallow Alternative

  • Analysis is limited to TypeScript and JavaScript projects
  • Near-miss detection is limited to function-scoped clones with small structural edits
  • Production function-call data requires the separate paid Runtime service
  • Supported languages: 2 — up to 20 with JPlag

Quick Picks by What You Need

All 15 Fallow Alternatives, Ranked

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

  1. jscpd

    Best forTeams needing broad, CI-ready clone analysis

    • Better than Fallow:
    • Editor score 8.8 vs 6.9

    A self-hosted, open-source clone analyzer with broad format support and CI reporting.

    Open source Our jscpd verdict → Visit jscpd
    8.8/10★★★★☆
    Visit jscpd
  2. PMD

    Best forTeams wanting static analysis with CPD

    • Better than Fallow:
    • Editor score 8.5 vs 6.9

    PMD combines configurable static analysis with CPD copy-paste detection across development workflows.

    Free plan Our PMD verdict → Visit PMD
    8.5/10★★★★☆
    Visit PMD
  3. Avidemux

    Best forBasic video editing on a desktop

    • Better than Fallow:
    • Editor score 7.0 vs 6.9

    Avidemux handles basic video processing, but it is not a code-duplication detector.

    7.0/10★★★★☆
    Visit Avidemux
  4. art-dupl

    Best forGo teams wanting AST-based CI checks

    A self-hosted Go and Templ duplication checker with AST matching and CI workflows.

    6.8/10★★★☆☆
    Visit art-dupl
  5. JPlag

    Best forAcademic or multi-language similarity analysis

    • Better than Fallow:
    • Supported languages: 20 vs 2

    A free, syntax-aware tool for pairwise program-similarity analysis across 20 languages.

    • Near-duplicate detection
    Free plan Our JPlag verdict → Visit JPlag
    6.7/10★★★☆☆
    Visit JPlag
  6. Best forBroad-language duplicate checks in build pipelines

    • Better than Fallow:
    • Supported languages: 19 vs 2

    A configurable, language-agnostic duplicate checker for build pipelines.

    • Duplication gates
    • Near-duplicate detection
    6.6/10★★★☆☆
    Visit Simian
  7. NiCad

    Best forResearchers needing configurable clone analysis

    A configurable command-line tool for finding exact and near-miss code clones.

    Free plan Our NiCad verdict → Visit NiCad
    6.5/10★★★☆☆
    Visit NiCad
  8. CCFinderX

    Best forLinux users analyzing six legacy languages

    • Better than Fallow:
    • Supported languages: 6 vs 2

    A Linux-focused, open-source clone detector for six languages, with AST-based matching and GUI analysis.

    • Near-duplicate detection
    6.4/10★★★☆☆
    Visit CCFinderX
  9. Best forDevelopers wanting real-time editor clone diagnostics

    An open-source language server for configurable, real-time duplicate-code diagnostics.

    • Near-duplicate detection
    6.3/10★★★☆☆
    View CCDetect-lsp
  10. Duplo

    Best forSimple repository duplicate checks with GitHub Actions

    A focused, configurable scanner for repository duplicate checks and GitHub Actions.

    Free plan Our Duplo verdict → Visit Duplo
    6.2/10★★★☆☆
    Visit Duplo
  11. dcd

    Best forFuzzy text clone checks with CI exit codes

    A focused, self-hosted detector for fuzzy code clones and CI threshold checks.

    Free plan Our dcd verdict → Visit dcd
    6.1/10★★★☆☆
    Visit dcd
  12. Dolos

    Best forSchools comparing programming assignment submissions

    Dolos compares programming submissions and groups similar code in visual reports.

    Free plan Our Dolos verdict → Visit Dolos
    6.0/10★★★☆☆
    Visit Dolos
  13. Best forEnterprises needing web-based clone review

    A cloud clone-analysis tool for reviewing modified duplicates across versions and codebases.

    • Near-duplicate detection
    5.9/10★★★☆☆
    Visit site
  14. CloneDR

    Best forWindows teams needing detailed clone reports

    A Windows desktop analyzer for teams that need detailed reports on exact and near-miss clones.

    • Near-duplicate detection
    5.8/10★★★☆☆
    Visit CloneDR
  15. Deckard

    Best forSelf-hosted tree-based clone research

    • Better than Fallow:
    • Supported languages: 4 vs 2

    A self-hosted command-line tool for tree-based clone research and HTML reporting.

    Open source Our Deckard verdict → Visit Deckard
    5.7/10★★★☆☆
    Visit Deckard

Fallow Alternatives: Common Questions

What is the best alternative to Fallow?

jscpd: #1 in our Code Duplication Detection Tools ranking, with an editor score of 8.8 out of 10. A self-hosted, open-source clone analyzer with broad format support and CI reporting.

Is there a free alternative to Fallow?

Yes. jscpd, PMD, Avidemux, art-dupl and JPlag have a free plan or a free tier (13 of the 15 alternatives on this page).

Why do people look for Fallow alternatives?

Analysis is limited to TypeScript and JavaScript projects; Near-miss detection is limited to function-scoped clones with small structural edits; Production function-call data requires the separate paid Runtime service.

Which Fallow alternative has the most supported languages?

JPlag, with 20.

How do I switch from Fallow?

Export your data from Fallow (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Fallow.

How to Switch from Fallow

  1. Export your data from Fallow (most tools have an export in their settings).
  2. Sign up for the alternative; start on its free plan or trial if it has one.
  3. Import your export and set up the integrations your team relies on.
  4. Run both side by side for a short while, then cancel Fallow.

Fallow vs Each Alternative

#ToolFree planPaid fromScore
4FallowYes$20/seat/mo6.9
1jscpdFree8.8
2PMDYesFree8.5
3AvidemuxYesFree7.0
4art-duplFree6.8
5JPlagYesFree6.7
6Simian Similarity AnalyzerYesFree6.6
7NiCadYesFree6.5
8CCFinderXYesFree6.4
9CCDetect-lspYesFree6.3
10DuploYesFree6.2
11dcdYesFree6.1
12DolosYesFree6.0
13Pattern Insight Clone Detection5.9
14CloneDRNo5.8
15DeckardFree5.7

Head-to-Head

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update