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czk

A CLI wrapper around czkawka_cli focused on usability and easier analysis of duplicate images and videos.

Features

  • Dry-run and live deletion modes with colorized, grouped terminal output
  • CSV and JSON reports per run
  • Interactive SQL analysis via DuckDB
  • Self-contained HTML visual report with inline image/video previews, search, and pagination

Requirements

  • macOS or Linux
  • czkawka_cli — duplicate detection engine
  • duckdb CLI — required for czk analyze
  • Python + uv

Installation

# From PyPI (recommended)
uv tool install czk-tool
# or with pip
pip install czk-tool

# From source
uv tool install --editable .

Usage

czk test <directory>      # Dry run — scan for duplicates, no deletion
czk execute <directory>   # Delete duplicates (AEB strategy)
czk analyze <directory>   # Interactive DuckDB SQL session over scan results
czk viz <directory>       # Generate a self-contained HTML visual report

czk check is an alias for czk test; czk analyse is an alias for czk analyze.

Options

Flag Description
--media {both,images,videos} Media type to scan (default: both)
-s, --similarity-preset Image similarity preset: Original, VeryHigh, High, Medium, Small, VerySmall, Minimal (default: High)
-c, --hash-size {8,16,32,64} Perceptual hash size for images (default: 32)
-g, --hash-alg Hash algorithm for images: Mean, Gradient, Blockhash, VertGradient, DoubleGradient, Median (default: Gradient)
-z, --image-filter Resize filter for images: Lanczos3, Nearest, Triangle, Faussian, Catmullrom (default: Nearest)
-t, --tolerance 0..20 Similarity tolerance for videos (default: 10)
--top N Limit duplicate groups in previews (default: 50)
--all Show all duplicate groups, overrides --top
--out-dir <path> Output directory (default: <system-temp>/czk-reports)
--no-color Disable colored output

Output

Each run writes timestamped artifacts to the output directory:

  • <base>-<media>-<YYYYMMDD-HHMMSS>.json
  • <base>-<media>-<YYYYMMDD-HHMMSS>.csv
  • <base>-viz-<YYYYMMDD-HHMMSS>.html (czk viz only)

CSV columns: index, file_to_keep, files_to_remove, count

Disclaimer

Parts of this project were assisted by AI tooling. Review all commands carefully before running, especially deletion workflows. This software is provided "as is" without warranties of any kind. The authors are not liable for any data loss or other damages resulting from use.

Release files for czk-tool 1.0.10

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