CopyPaste vs QuickDup

CopyPaste is a free, local-first clipboard manager for Windows and macOS. It saves clipboard history for text, images, files, folders, links, audio and video, with previews tailored to the content. Full-text search, pins, custom labels and colors, and filters by content, category and item type help organize saved items; it also supports snippets and rich text. The project says history stays on the device, without cloud storage, servers, syncing, telemetry, analytics or accounts. CopyPaste works offline and excludes passwords and clipboard content from password managers such as 1Password and Bitwarden. The standalone version checks for updates without sending user data. Windows requirements are Windows 10 version 1809 or later, or Windows 11 on x64. On macOS, it requires Ventura 13.0 or later and has a universal binary for Apple Silicon and Intel. Linux support ended after v2.11.0, and those builds receive no fixes, security updates or new features. CopyPaste is open source under GPL-3.0; redistributing it within another product requires separate terms.

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.