• Adaptive layout mode, light/dark mode
• Convenient file management (similar to Finder)
• Right-click gestures, quickly find the previous/next folder with images/videos
• Performance optimizations for directories with a large number of images
• High-quality scaling (reduces moiré and other issues)
• Support for video thumbnails
• Recursive mode

• macOS 11.0 and Later

• Open source
• No Internet connection
• Provide unsigned official builds

Initial Installation

brew tap netdcy/flowvision
brew install flowvision --no-quarantine

Upgrade ('--no-quarantine' must be added when upgrading or reinstalling)

brew update
brew upgrade flowvision --no-quarantine

• Double-click to open/close the image
• Hold down the right/left mouse button and scroll the wheel to zoom
• Hold down the middle mouse button and drag to move the window
• Long press the left mouse button to switch to 100% zoom
• Long press the right mouse button to fit the image to the view

• Right/Left: Switch to the next/previous folder with images/videos (logically equivalent to the next folder when sorting all folders on the disk)
• Up: Switch to the parent directory
• Down: Return to the previous directory
• Up-Right/Up-Left: Switch to the next/previous folder with images at the same level as the current folder
• Down-Right: Close the tab/window

• W: Same as the right-click gesture Up
• A/D: Same as the right-click gesture Left/Right
• S: Same as the right-click gesture Down

Q1: Why can't I open the application? I see a warning saying the app is not trusted.

A1: This happens because the app is not notarized by Apple. Please follow the instructions provided in Apple support article to open the app.

Q2: Why isn't the application notarized?

A2: Notarizing an app requires an annual $100 fee to Apple. To keep the software free, we haven't notarized it. If you prefer, you can build the app yourself from the source code.

Xcode 15.2+

• https://github.com/arthenica/ffmpeg-kit
• https://github.com/attaswift/BTree
• https://github.com/sindresorhus/Settings

1. Clone the source code of the project and libraries.

2. For ffmpeg-kit, it need to be built to binary first. If you want to save time, you can directly download its pre-built binary, named like ffmpeg-kit-full-gpl-6.0-macos-xcframework.zip (not LTS version). Unzip it, then execute this in terminal to remove its quarantine attribute:

   sudo xattr -rd com.apple.quarantine ./ffmpeg-kit-full-gpl-6.0-macos-xcframework
   

3. Organize the directory structure as shown below:

   ├── FlowVision
   │   ├── FlowVision.xcodeproj
   │   └── FlowVision
   │       └── Sources
   ├── ffmpeg-kit-build
   │   └── bundle-apple-xcframework-macos
   │       ├── ffmpegkit.xcframework
   │       └── ...
   ├── BTree
   │   ├── Package.swift
   │   └── Sources
   └── Settings
       ├── Package.swift
       └── Sources
   

4. Open FlowVision.xcodeproj by Xcode, click 'Product' -> 'Build For' -> 'Profiling' in menu bar.

5. Then 'Product' -> 'Show Build Folder in Finder', and you will find the app is at Products/Release/FlowVison.app.

This project is licensed under the GPL License. See the LICENSE file for the full license text.