art-dupl vs JPlag

art-dupl6.8Visit JPlag6.7Visit

Higher score art-dupl #5 in Code Duplication Detection Tools 6.8/10 Open source ✓ 1 of 4 features Visit art-dupl

vs

JPlag #6 in Code Duplication Detection Tools 6.7/10 Free plan Free plan✓ 2 of 4 features Visit JPlag

• art-dupl fits best

  Go teams wanting AST-based CI checks

• JPlag fits best

  Academic or multi-language similarity analysis

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Side by side

Feature	art-dupl 6.8/10 Visit ↗	JPlag 6.7/10 Visit ↗
At a glance
Editor score	6.8	6.7
Ranking	#5 in Code Duplication Detection Tools	#6 in Code Duplication Detection Tools
Best for	Go teams wanting AST-based CI checks	Academic or multi-language similarity analysis
Pricing model	Free	Free
Starting price	Open source	Free plan
Free plan	Not checked yet	✓ (best)
Free trial	—	—
Deployment	Self-hosted	Self-hosted
Support	Docs, Community	Community
Integrations	3 integrations	1 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features art-dupl 1/4 · JPlag 2/4
Near-duplicate detection	Not checked yet	✓ (best)
Duplication gates	Not checked yet	—
Trend visualisation	Not checked yet	—
Open-source option	✓	✓
Specs
Supported languages	Not checked yet	20
CI/PR reporting	Not checked yet	None
Our review
Pros	Semantic, exact, and structural matching for clone detection Baselines flag newly introduced clones in CI Reports include SARIF, metrics, and health grades	Syntax-aware matching across 20 supported languages Handles some obfuscation and code modifications Free, open source, with CLI and Java API access
Cons	Source analysis is limited to Go and Templ Deployment is self-hosted rather than managed Support is through documentation and community	Focused on pairwise analysis rather than duplication gates No CI pull-request reporting or trend visualisation Self-hosted setup relies on community support
Our verdict	art-dupl is an open-source command-line tool for finding duplicated code in Go and Templ projects. It suits developers and teams that want repository scans on their own machines or automated checks in CI/CD. Its AST-based approach compares… Read the review →	JPlag is a free, open-source tool that compares programs pairwise to identify source-code similarity. It is primarily suited to programming education, where instructors review student submissions, and it can also help examine duplicated… Read the review →

Strengths and trade-offs

• art-dupl — where it wins

  • Semantic, exact, and structural matching for clone detection
  • Baselines flag newly introduced clones in CI
  • Reports include SARIF, metrics, and health grades

  Where it doesn't

  • Source analysis is limited to Go and Templ
  • Deployment is self-hosted rather than managed
  • Support is through documentation and community

• JPlag — where it wins

  • Syntax-aware matching across 20 supported languages
  • Handles some obfuscation and code modifications
  • Free, open source, with CLI and Java API access

  Where it doesn't

  • Focused on pairwise analysis rather than duplication gates
  • No CI pull-request reporting or trend visualisation
  • Self-hosted setup relies on community support

• art-dupl6.8/10 · Open source

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

  Visit art-duplFull verdict →
• JPlag6.7/10 · Free plan

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

  Visit JPlagFull verdict →