Plex Collection & Metadata Manager
MediaAegis is a native macOS app to manage your Plex collections and metadata — build curated collections that update themselves as your library grows, automate labels and content ratings, and explore your metadata to inform the rules that drive them. No YAML, no config files.
Collection Builder — rule-based collections
Define the criteria that make a collection, and let MediaAegis keep it up to date. As new media arrives and gets scanned, matching items are automatically included — no manual curation required.
- Create collections based on genre, label, rating, year, resolution, and more
- Collections update automatically as your library grows
- Combine multiple conditions for precise filtering
- Preview collection membership before applying
- Manage collection sort order and artwork*
Collections Library
Skip the manual curation entirely. The Collections Library ships with ready-made, data-backed collections — starting with the Academy Awards — so you can build accurate award collections from the films you already own.
- Pick an award, a ceremony year (or a range of years), and the categories you want
- Builds collections automatically from the films already in your library
- Completeness view shows exactly which nominated films you’re missing
- Winners-only option, plus custom-poster support per collection
TMDB Collections and Lists
Turn any collection or list on The Movie Database into a Plex collection, matched to the movies you already own. The Marvel Cinematic Universe and DC Extended Universe are built in — and you can add your own from any TMDB collection or list ID. Best of all, MediaAegis shows you exactly which films you’re missing, so a collection doubles as a want-list for completists.
- Built-in Marvel and DC templates, kept current straight from TMDB
- Add your own from any TMDB collection or list — the ID type is detected automatically
- Completeness view shows every film you own and every one you don’t
- Builds from the movies already in your library; you supply the poster
Requires a free TMDB Read Access Token. Movies only in this release — TV support is planned.
Library Research
Explore your library data with a searchable field index. Quickly look up values across your metadata to inform collection rules, diagnose issues, and understand your library at a deeper level.
- Search across all metadata fields in any library
- Field index shows every unique value and its frequency
- Discover the exact values to use in collection and policy rules
- Export results to CSV — something Plex doesn’t offer natively
- Troubleshoot metadata inconsistencies quickly
* Collection posters are managed in the Poster Studio.