QuickNFO

macOS QuickLook extension for previewing .nfo files. Select any .nfo file in Finder and press Space to see a rendered preview with classic CP437 block characters.

Supports both preview (full content) and thumbnail generation.

Screenshots

Preview

Thumbnails

Requirements

• macOS 15.0 (Sequoia) or later
• Xcode 16+ and XcodeGen (only for building from source)

Installation

Homebrew (Recommended)

brew tap vigo/quicknfo
brew install --cask vigo/quicknfo/quicknfo

Manual Download

1. Download QuickNFO-v{version}.zip from GitHub Releases
2. Extract and move QuickNFO.app to /Applications
3. Remove the quarantine attribute:

   xattr -cr /Applications/QuickNFO.app

4. Launch QuickNFO.app once to register the QuickLook extensions

Build from Source

brew install xcodegen  # if not already installed
make build
make install

Usage

1. Open Finder and navigate to a folder with .nfo files
2. Select a .nfo file
3. Press Space to see the QuickLook preview

Unsigned App Notice

QuickNFO is not signed with an Apple Developer ID. macOS Gatekeeper will block the app on first launch. To resolve this:

xattr -cr /Applications/QuickNFO.app

The Homebrew cask runs xattr -cr automatically after installation.

Upgrading from Previous Versions

The old .qlgenerator plugin (v1.x) is no longer supported on modern macOS. QuickNFO v2.0 uses the App Extension architecture introduced in macOS 15.

If you have the old plugin installed, remove it:

rm -rf ~/Library/QuickLook/QuickNFO.qlgenerator

Then install the new version using one of the methods above.

Contributing

# Clone and build
git clone https://github.com/vigo/QuickNFO.git
cd QuickNFO
brew install xcodegen
make build

# Run the app locally
open build/QuickNFO.xcarchive/Products/Applications/QuickNFO.app

License

This project is available under the MIT License. See the original repository for details.