Oak Viewer

Oak Viewer is a quiet, intentional photo viewer designed for art collectors, photographers, and image lovers.
Discover artwork online, download gallery ZIP files directly in the built-in browser, and explore your images in a calm, distraction-free space. Swipe smoothly between pieces, inspect fine details, and rate your favorites — all while keeping your collection private and fully on-device.
Oak Viewer is designed to feel more like a personal gallery than a utility.

FULL-SCREEN VIEWING
Experience your images the way they were meant to be seen. Swipe fluidly between photos, zoom down to pixel level, and explore every detail with intuitive gestures.
A clean interface keeps the focus on your images while still providing quick access to ratings, metadata, and tools when you need them.
Also supports videos, PDFs, and text files — all in one library.

PRIVATE, ON-DEVICE LIBRARY
Your collection stays on your device.
No accounts. No cloud uploads. Just your collection.
Optional biometric app lock adds an extra layer of protection.

DISCOVER & IMPORT COLLECTIONS
Browse art and photography sites with the built-in private browser.
• Long-press to save images directly
• Import entire ZIP galleries
• Batch import collections
Build your collection effortlessly.

ORGANIZE YOUR GALLERY
Create unlimited folders and nested albums.
Use Smart Folders to automatically gather images by rating — keeping your best work always within reach.
Pin favorites for instant access.

RATE & CURATE
Quickly review your collection with a fluid 1–5 star rating system.
Long-press and slide to rate instantly while browsing — perfect for large collections.

IMAGE INSIGHTS
Dive deeper into every image:
• Full EXIF metadata
• Filename and resolution details
• Real-time RGB and luminance histograms
• Highlight and shadow clipping indicators
• Precise zoom and panning feedback

WIDGETS & QUICK ACCESS
Bring your collection to your Home Screen:
• Picture Frame widget rotates favorite folders
• Resume widget jumps back into your last session

DESIGNED YOUR WAY
Customize your experience:
• Themes and custom app icons
• Custom library backgrounds
• Adjustable grid density and spacing
• Slideshow viewing
• Keyboard shortcuts on iPad
• Configurable trash policies

Whether you’re collecting digital art, studying photography, or simply enjoying images at your own pace, Oak Viewer creates a private space where your collection can breathe.