CCFinderSW vs QuickDup
CCFinderSW
github.comQuickDup
github.comSide by side
| Figure | CCFinderSW | QuickDup |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 1 | 0 |
| Spec score · Code Clone Detection Tools | 8.6 (#1) | 6.9 (#20) |
| License | The repository license file includes the MIT License for CCFinderSW and a BSD 3-clause license for ANTLR components. | QuickDup is released under the MIT License. |
| Purpose | CCFinderSW is a token-based code clone detection tool that detects similar code fragments and outputs clone pairs. | QuickDup is a structural code clone detector that finds duplicate code patterns using indent-delta fingerprinting and is designed to generate candidates for AI-assisted code review. |
Plans
In their own words
CCFinderSW
CCFinderSW is a free, open-source command-line tool that detects similar code pairs through token-based clone matching. It takes a source directory, a language, and an output file as command-line arguments. The default minimum clone-token threshold is 50 and can be changed with the -t argument. Output can use CCFinder, CCFinderX, CCFinderSW text, or JSON formats, and clone-pair results can be read by Gemini or CCFX. A comment rule file is required for the target language; a reserved-word list is optional but recommended. Without that list, the tool detects type 1 clones; with it, it detects type 1 and type 2 clones. It excludes pairs containing inserted or deleted sentences. The implementation is Java-only, and the project recommends Java 8 or later. Windows is the listed platform, with Windows 10 Pro named as its test environment. The repository offers a CCFinderSW-1.0.zip download and includes an MIT license for the project; bundled libraries use Apache License 2.0.
QuickDup
QuickDup is a repository code clone detector that finds candidate duplicate patterns using changes in indentation and the first word on each line. It skips comments and blank lines, tokenizes source lines and uses Jaccard similarity to filter patterns below a default 75% threshold. It does not parse abstract syntax trees. Detection options include normalized-indent, word-indent, word-only and inlineable strategies. The README lists comment-prefix detection for languages including Go, C and C++, Java, JavaScript and TypeScript, C#, Python, Ruby, SQL, Lua and MATLAB. QuickDup can emit GitHub Actions annotations for inline pull request comments and restrict them to files changed against a Git reference. Results are written as machine-readable JSON in a .quickdup directory. Incremental caching is available only for the word-indent strategy; other listed strategies re-parse files on each run. The README reports processing about 100,000 lines in about 500 ms on 8 cores. QuickDup is free under the MIT License, with installers for Linux, macOS and Windows, or installation from source with Go.