Metadata Remote is a browser-based audio tag editor designed specifically for headless music servers, enabling collectors to fix ID3 tags, embed high-resolution cover art, and match releases against MusicBrainz without moving files off their NAS. Navidrome, Jellyfin, and Plex administrators can browse mounted directories directly from any browser, inspect standard and extended metadata fields, and apply single-file or bulk folder-wide updates in one click. Clicking an empty or incomplete field activates the smart inference engine, which analyzes filenames, directory hierarchy, and sibling tracks alongside live MusicBrainz queries to present candidate values ranked by confidence percentage, including specialized matching rules for classical works, multi-artist compilations, and live bootlegs. Built-in audio streaming lets you audition MP3, FLAC, OGG, OPUS, M4A, M4B, WMA, WAV, and WavPack files inside the interface to verify mysterious tracks before renaming files or folders inline. A dedicated long-form text editor automatically opens for lyrics and liner notes exceeding 100 characters, while the album art manager previews image dimensions, bulk-embeds covers across entire albums, and repairs corrupted artwork headers automatically. Every single-track edit, custom field creation, and batch folder operation is tracked in a 1,000-step undo and redo history with full keyboard-only navigation. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.