CloneWorks
CloneWorks: A configurable, self-hosted token-based detector for repository-scale clone analysis. Ranked #15 of 23 in Code Clone Detection Tools by our editors (7.7/10); pricing: Free plan; best for large-scale configurable token-based scans.
At a glance
- Editor score7.7 / 10
- PricingFree plan
- Best forLarge-scale configurable token-based scans
- Free planYes
- Paid fromFree
- Clone detection methodToken
- Facts checked20 Sep 2026
Where it wins
- Configurable normalization, transformation, filtering, and thresholds
- Block, function, and file-level code-fragment extraction
- Partitioning and partial indexes support large-scale scans
Where it doesn't
- Requires local installation and self-hosted operation
- Documented input support covers Java, C, C++, C#, and Python
- Custom licensing requires review for project fit
Our verdict on CloneWorks
CloneWorks is a free, open-source code clone detection tool for large-scale repository analysis and clone detection experiments. It runs locally on Linux and macOS, using token-based comparison across source files. The tool is aimed at researchers and engineering teams that need control over clone preparation, similarity settings, scan organization, and result output rather than a hosted, guided workflow.
Its main strength is configurability. CloneWorks can normalize, transform, and filter source code before comparison, then extract fragments at block, function, or file granularity. Detection uses a modified Jaccard similarity metric, with configurable similarity and clone-size thresholds. Sub-block filtering and partial-clone indexes support near-miss analysis, while input partitioning addresses memory-constrained large-scale scans. Pluggable code-fragment and term processors add another layer of control, and results can be formatted for machine processing or human inspection.
CloneWorks is distributed free of charge under the project’s custom license, with no paid tier structure described. Its local installation and self-hosted model fit teams that can manage configuration and processing on their own systems. The documented language coverage is focused rather than broad: Java, C, C++, C#, and Python are supported. Choose CloneWorks when configurable token-based analysis, repository-scale processing, and research-oriented control matter most. A hosted product or a wider language range may suit teams that want less local setup or broader input coverage.
Your product? Our editors can test CloneWorks in depth and publish a review, labelled as paid · from $149/mo →
CloneWorks pricing
CloneWorks fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Clone detection method | Token |
| Scan scope | Repository |
| CI integration | Not verified |
| IDE integration | Not verified |
| Self-hosted option | Yes |
| Supported languages | Not verified |
| Deployment | Self-hosted |
| Platforms | Linux, macOS |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to CloneWorks
- jscpdA broad, self-hosted clone detector with strong CI, reporting, and history analysis.9.4
- art-duplA focused, self-hosted clone analyzer for Go teams building duplication checks into CI.9.2
- PMDA strong open-source choice for teams pairing clone detection with broad static analysis.9.0
See all CloneWorks alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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