NukoGallery: NAS Media Viewer

NukoGallery lets you browse the photos and videos in a shared folder on your home NAS or PC, the way you browse your phone's gallery.
It was made for everyone tired of slow thumbnails from the NAS, big videos that keep loading forever when you seek, and external players that stall halfway.

■ Galleries from the folders you choose
• Gather folders from anywhere on your NAS into galleries such as Travel, Family or Hobbies
• The same folder can be in several galleries
• Swipe left and right on the home screen to switch
• Albums or by date, chosen per gallery
• One gallery free, unlimited with Pro

■ Lists that appear right away
• Folders are remembered in an index on the phone, so after the first visit lists show without waiting for the NAS
• Thumbnails are cached on the phone. Synology's @eaDir thumbnails and the small previews inside photos are used when present, so the NAS is read as little as possible
• NAS folders rarely change, so folders are re-checked only when you tap Refresh (or at an interval you choose)

■ Videos that don't stall
• The built-in player reads only the parts of the file it needs, so seeking and moving to the next video are quick even for big files
• MX Player-style gestures (brightness and volume on the left and right, swipe to seek, double-tap to skip 10 s)
• Resume where you left off, orientation lock, control lock
• Or open videos in another player

■ Get to what you want
• Albums or by date, pin to top, fast scrolling
• Favorites, tags, search by file or album name
• A map of where photos were taken (OpenStreetMap)
• Slideshow, full resolution when you zoom in, embedded previews for RAW files
• Details of each photo and video (path, size, dimensions, date taken, location)

■ Tidy up
• Copy, move and delete (several at once). The app writes to the NAS only when you do this

■ Servers
• SMB 2/3 (Windows file sharing, Samba and most NAS: Synology, QNAP, Buffalo, I-O DATA…)
• SFTP (Raspberry Pi, Linux servers)
• WebDAV (HTTP/HTTPS)
• FTP / FTPS

■ Pro (one-time purchase)
• Multiple galleries (free: 1)
• No ads
• Thumbnails made ahead of time (on Wi-Fi while charging)
• App lock and private albums (with your phone's screen lock)
• Smart albums (collect items by name, tags, photos or videos)

■ Privacy
• Photos and videos travel only between your phone and your own server — never to the developer
• Passwords are encrypted on the device with the Android Keystore
• Tags and favorites stay on the device too

Note: to browse your NAS away from home, the phone needs to reach your home network through a VPN (Tailscale and the like).