Quick File Hasher

Verify your files with speed and confidence.

Quick File Hasher is a modern Nautilus (GNOME Files) extension and standalone GTK4/libadwaita application for computing file hashes, featuring a polished UI and seamless clipboard integration.

Features

• Nautilus context menu integration: Right-click files/folders and select "Quick File Hasher".
• Modern GTK4/libadwaita UI: Responsive, animated, and user-friendly interface.
• Batch Processing: Quickly calculate hashes for multiple files and folders in parallel.
• Copy/Compare: Copy results to clipboard or compare file hash with clipboard contents.
• Progress bar & cancel: See progress and cancel long jobs.
• Drag & Drop: Drop files/folders into the app.

Installation

1. Install dependencies:

#Ubuntu
sudo apt-get install python3-nautilus

#Arch Linux
sudo pacman -S nautilus-python

#Fedora
sudo dnf install nautilus-python

2. Copy the extension manually:

mkdir -p ~/.local/share/nautilus-python/extensions
cp quick-file-hasher-app.py ~/.local/share/nautilus-python/extensions/

3. Or use the Makefile for easy install:

make install

4. Restart Nautilus:

nautilus -q

Usage

• From Nautilus:
  • Select files/folders, right-click, and select "Quick File Hasher".
• From command-line:
  • Run directly: python3 quick-file-hasher-app.py [file1] [file2] [folder1] ...
• From overview:
  • After running make install, a desktop shortcut will be created. You can then launch the app from your system application overview. (Press the Super key and search for "Quick File Hasher")
• Drag-and-drop:
  • Drag files/folders into the app window to compute their hashes.
• Filter results:
  • Click the search icon in the header bar or press Ctrl+F to show the search bar. Filter results instantly as you type.
• Multi-Hash:
  • This feature enables selection of additional hashing algorithms for the given file.

Arguments

You can also run the app with additional command-line arguments for more control:

python3 app.py [file1] [file2] ... [folder69] [--recursive] [--gitignore] [--max-workers 4] [--algo sha256]

Type --help for more information.

Preferences

The Preferences dialog allows you to customize the application's behavior.

• Recursive Traversal
  • Enable this to process files within subdirectories.
• Respect .gitignore
  • When enabled, files and folders listed in the .gitignore file will be skipped.
• Max Workers
  • Sets the maximum number of parallel hashing operations. Adjust this value to optimize performance based on your systems capabilities.
• Hashing Algorithm
  • Select the default hashing algorithm from the list.
  • Available options include (hashlib): md5, sha1, sha256, sha512, blake2b, blake2s and more. The default is sha256.
• Output Style
  • Select the output format for checksum display.
  • Available options are the app’s default style, sha256sum, and BSD.

Note: Changes to these settings are only saved across sessions when the Persist button is clicked. Additionally, command-line arguments can override these preferences at startup.

Screenshot

Uninstall

1. Remove the extension manually:

rm ~/.local/share/nautilus-python/extensions/quick-file-hasher-app.py

2. Or use the Makefile for easy uninstall:

make uninstall

3. Restart Nautilus:

nautilus -q

Tested Platforms

This extension has been tested on:

• Ubuntu 24.04 LTS
• Ubuntu 25.04
• Fedora 42
• CachyOS

License

MIT