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SourcererCC

github.com

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Spec score 6.6 #12 of 18 in Code Duplication Detection Tools

Spec sheet

Purpose
SourcererCC is a token-based code clone detector for very large code bases and Internet-scale project repositories.Read 9 Oct 2026 · github.com
Support
The tutorial invites users to contact the team for technical help, including hardware performance tuning.Read 9 Oct 2026 · github.com
License
The GitHub repository identifies its license as GPL-3.0.Read 9 Oct 2026 · github.com
DéjàVu
The project says SourcererCC supports DéjàVu, a large-scale study of code cloning on GitHub, and describes DéjàVu as a web tool for clone analysis.Read 9 Oct 2026 · github.com
Detection scope
It can detect clones between files, methods, statements, or blocks, in any language.Read 9 Oct 2026 · github.com
File size bounds
The documented file-level clone detection configuration ignores files below 65 tokens or above 500000 tokens by default.Read 4 Oct 2026 · github.com
Getting started
The project provides a virtual machine with instructions and programs for processing source code into a database with clone mappings.Read 9 Oct 2026 · github.com
Granularity
It can detect clones between files, methods, statements, or blocks.Read 4 Oct 2026 · github.com
Input preparation
Source code must first be tokenized, and the documented tokenizer accepts configured file extensions and project paths.Read 4 Oct 2026 · github.com
Input size limits
The documented configuration ignores files below 65 tokens or above 500,000 tokens.Read 9 Oct 2026 · github.com
Language support
The README says it can detect clones in any language, with tokenizer language settings and file extensions configured by the user.Read 4 Oct 2026 · github.com
Languages
The tokenizer can be configured with language comment syntax and a list of file extensions to analyze.Read 9 Oct 2026 · github.com
Notable platform limit
The README says the tokenizer's multiprocessing features do not work on Macs with Python versions later than 3.6 and recommends avoiding Mac for this workflow.Read 4 Oct 2026 · github.com
Parallel processing
The tool splits clone detection across multiple nodes, whose output must be aggregated.Read 9 Oct 2026 · github.com
Platform limitation
The tutorial says the tokenizer requires Python 3.6 on Mac because later versions have multiprocessing incompatibilities.Read 9 Oct 2026 · github.com
Processing
Source code must be tokenized before SourcererCC runs, and the repository provides a tokenizer for that step.Read 9 Oct 2026 · github.com
Similarity threshold
The documented default flags clones at 80% similarity, and the threshold can be changed.Read 9 Oct 2026 · github.com
VM artifact
The project describes a virtual machine artifact with pre-programmed steps from raw source code to a database with clone mappings and says it is an easy way to get started.Read 4 Oct 2026 · github.com
Web tool
The README describes DéjàVu as a supporting web tool for quick and simple clone analysis.Read 4 Oct 2026 · github.com

Where Specifiction places it

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