The research shortlist
Page updated
KrokietTop pick
Open-source duplicate and disk-cleanup GUI
Metadata checked Aug 18, 2026
Rank 1: closest to Gemini’s GUI workflow and feature breadth, with active development, current macOS binaries, and similar-media matching.
The maintained Krokiet frontend scans exact duplicates and near-duplicates across images, videos, music, and ordinary files, then groups results for review and cleanup.
- 01Exact duplicate detection by name, size, or hash
- 02Similar image, video, and music matching
- 03Grouped results with previews and selection controls
- 04Delete, move, rename, and hardlink actions
- 05Prebuilt macOS binaries for Intel and Apple Silicon
- Use Krokiet; the older GTK frontend is now legacy and receives no new binaries.
- Choose the correct Intel or Apple Silicon build; Similar Videos additionally requires ffmpeg.
Evidence sources (16)
- Official Czkawka repositorySource available ·
- Krokiet GPL-3.0 application licenseLicense ·
- Krokiet MIT code licenseLicense ·
- Czkawka 12.0.1 releaseRelease ·
- Krokiet installation and macOS supportDocumented macOS path ·
- Free and open-source project statementFree at review time ·
- Project-owned Krokiet iconScreenshots ·
- GitHub REST repository APISource available ·
- Latest macOS release assetFree at review time ·
- Krokiet source directory and project frontendSource available ·
- Repository commit history; latest push activitySource available ·
- Official tags; latest stable version and tag dateSource available ·
- Krokiet installation instructions with macOS support and prebuilt binariesDocumented macOS path ·
- Krokiet macOS Apple Silicon release binaryFree at review time ·
- Project-owned Krokiet logo SVGScreenshots ·
- Krokiet/Czkawka 12.0.0 releaseRelease ·
fclones
Fast, scriptable duplicate finder
Metadata checked Aug 18, 2026
Rank 2: strongest CLI fit for large trees and automation, with dry-run/reporting, link-based deduplication, and current Homebrew macOS bottles; the lack of a mature GUI lowers its rank.
Full review — capabilities, 3 caveats, evidence
A Rust command-line tool that produces inspectable duplicate reports and can remove, move, or replace redundant files with links, including dry-run and structured-output workflows.
- 01Parallel scanning and hash-based grouping
- 02Dry-run before filesystem changes
- 03Remove, move, hardlink, symlink, or reflink data
- 04Text, CSV, and JSON reports with extensive filters
- 05Current Homebrew bottles for Apple Silicon and Intel macOS
- CLI only; it does not provide Gemini-style visual browsing.
- The project notes that Linux receives some optimizations unavailable on macOS.
- It identifies identical files, not visually similar media.
Evidence sources (6)
- Official fclones repositorySource available ·
- fclones MIT licenseLicense ·
- fclones v0.35.0 releaseRelease ·
- Current Homebrew macOS bottlesDocumented macOS path ·
- GitHub REST repository APISource available ·
- GitHub license metadataLicense ·
fdupes
Mature command-line duplicate finder
Metadata checked Aug 18, 2026
Rank 3: trusted and current exact-match engine with the simplest macOS installation path; it ranks below the GUI and fclones because it lacks similar-file analysis and graphical review.
Full review — capabilities, 2 caveats, evidence
A small terminal utility for exact duplicate sets, with recursive scans, cached signatures, sorting, interactive deletion, and a no-prompt mode.
- 01Recursive directory scans
- 02Signature caching for faster comparisons
- 03Interactive or no-prompt deletion
- 04Symlink and hardlink handling
- 05Current Homebrew bottles for Apple Silicon and Intel macOS
- CLI only; there is no GUI, preview browser, or similar-media matching.
- Review deletion behavior carefully when using symlinks or repeating directory arguments.
Evidence sources (8)
- Official fdupes repositorySource available ·
- fdupes MIT licenseLicense ·
- fdupes 2.4.0 releaseRelease ·
- fdupes 2.4.0 source downloadFree at review time ·
- Current Homebrew macOS bottlesDocumented macOS path ·
- GitHub REST repository APISource available ·
- Official comparison showing commits through 2026-04-14Source available ·
- Homebrew formula metadata for the public MIT-licensed packageFree at review time ·
Specifications, side by side
| Attribute | 1 · Krokiet | 2 · fclones | 3 · fdupes |
|---|---|---|---|
| License | GPL-3.0-only | MIT | MIT |
| Platforms | macOS, Windows, Linux | macOS, Windows, Linux | macOS, Linux |
| Status | Checked | Checked | Checked |
| Version | v12.0.1 | v0.35.0 | v2.4.0 |
| Stars | 32.8k | 2.9k | 3.0k |
| Last push | |||
| Caveats | 2 | 3 | 2 |
About Gemini
Gemini — Find and remove duplicate files on Mac. Free up space by deleting similar content.
Setapp listing: Find and remove duplicates
