NextGEN Gallery is unusual among WordPress gallery plugins because it stores its data in dedicated tables rather than in wp_posts: wp_ngg_gallery for galleries, wp_ngg_pictures for individual image rows with file, alt text, description, and tag references, and wp_ngg_album for album bundles. The default NextGEN admin shows each table on its own screen with limited cross-filtering, and the picture list is paginated per gallery rather than as a unified library.

SleekView reads ngg_gallery, ngg_pictures, and ngg_album directly. A gallery view shows title, picture count, preview image, last modified, and view count. A picture view spans every gallery with file, alt text, description, exclude flag, and tag list as filterable columns. Saved views like 'pictures missing alt text across all galleries', 'galleries with under 5 images', or 'pictures excluded from display' load with one click.

Inline edits cover gallery title, picture exclude flag, alt text, and description. Edits go through NextGEN's own save path so any cache layer, image map regeneration, or addon hook fires normally. NextGEN Pro addons such as Image Manager and ProofGen write to the same tables when active, and their additional columns surface automatically. The plugin keeps managing the catalog; SleekView just makes it queryable as one screen.

NextGEN Gallery has been a staple of WordPress photography sites for over a decade, and its decision to store galleries, pictures, and albums in dedicated custom tables paid off at scale: queries run against indexed columns, large catalogs stay performant, and the data model survives WordPress upgrades. The cost is that the catalog lives in tables the standard WP admin does not surface. The default NextGEN admin shows each table on its own screen and the picture list is paginated per gallery, so cross-cutting questions like 'how many pictures across the entire library are missing alt text' or 'which galleries imported from the legacy import still have placeholder thumbnails' need either custom SQL or hours of clicking.

SleekView reads the same custom tables and gives the catalog one queryable workspace. Photographers run delivery audits in seconds, editorial teams close accessibility gaps across thousands of pictures in a single pass, and agencies maintaining legacy sites finally have the migration audit surface a long-running catalog deserves. The plugin keeps managing the data; SleekView just turns it into the screen the data has always been suited to.