FAQ
General Questions
What is Nicasa?
Nicasa is a modern desktop image viewer and screenshot tool designed exclusively for macOS. It provides fast, intuitive navigation through your image collections with a clean, responsive interface and powerful AI editing capabilities.
Is Nicasa free?
The Chrome extension is completely free to download and use. The macOS app requires a one-time purchase of $4.99 for full access to all features.
Which operating systems are supported?
Nicasa is currently available exclusively for macOS 10.13 or later. Windows and Linux versions are not available at this time.
How do I update Nicasa?
Updates are handled through the Mac App Store. You'll receive notifications when updates are available, and can update directly through the App Store application.
Usage Questions
How do I take screenshots with Nicasa?
- Launch Nicasa
- Click the screenshot button in the toolbar or use
Cmd+S - Select the area you want to capture
- The screenshot will open in Nicasa for immediate editing
Does Nicasa work with web images?
Yes! Install the free Nicasa Chrome extension to:
- View all images from any website in one place
- Extract and browse images instantly
- Open images directly in Nicasa for enhanced viewing
What AI editing features are available?
Nicasa includes powerful AI tools:
- Auto Enhance: Automatically improve image quality
- Smart Crop: Intelligent cropping suggestions
- Inpainting: Remove unwanted objects intelligently
- Color Correction: AI-powered color adjustments
- Noise Reduction: Remove noise and grain
How does Transparent Overlay Mode work?
Perfect for designers and artists:
- Pin images above all windows with adjustable transparency
- Use for tracing, reference work, or UI comparison
- Maintains position across all applications
Technical Questions
Why do I need to grant screen recording permission?
Screen recording permission is required for the screenshot functionality. This allows Nicasa to capture your screen when you use the screenshot tool.
Can I use Nicasa offline?
Yes. The macOS app works fully offline for local image files. Web image extraction through the Chrome extension requires an active internet connection.
Which macOS versions are supported?
Nicasa supports macOS 10.13 or later. It is optimized for Apple Silicon and runs natively on M-series chips.
What permissions does the Chrome extension need?
The extension requests access to page content solely to extract image URLs. No browsing history is read or stored.
Is my data uploaded anywhere?
No. All processing happens locally on your device. Nicasa does not collect, transmit, or store your images.
How do I backup my settings?
Your settings are stored locally. To backup:
- Go to Nicasa > Preferences
- Export your settings if available
- Or manually backup the application preferences folder
Settings are stored in the application data folder. Copy this folder to backup your preferences.
Is there a portable version?
A portable version is available for Windows. Download it from our website.
Development Questions
Can I contribute to Nicasa?
Visit our GitHub repository to contribute code, report issues, or suggest features.
How do I build Nicasa from source?
See our developer documentation on GitHub for build instructions.
What technologies does Nicasa use?
Nicasa is built with modern web technologies including Electron for the desktop wrapper and Vue.js for the interface.
Privacy Questions
Does Nicasa collect any data?
No, Nicasa does not collect or transmit any personal data. All image processing happens locally on your device.
Are my images safe?
Yes, Nicasa only accesses images you explicitly open. It doesn't upload or share your files.
What permissions does Nicasa need?
Nicasa needs access to your file system to read images and save settings. It doesn't require internet access to function.
Still Have Questions?
If you can't find the answer here, please:
- Check our full documentation
- Search our GitHub issues
- Create a new issue if needed
We're here to help!