Onlyplayer

OnlyPlayer Browser Extension
OnlyPlayer is a Chromium-compatible browser extension that turns any modern browser into local media workstation. It focuses on fast directory browsing, rich playback controls, and a customizable UI so users on locked-down machines can still enjoy a full-featured player without installing native software. The interface is icon-first: virtually every action is represented by glyphs, while the limited textual hints auto-localize to the browser language.

Key Experiences
Directory-first playback - pick local folders via the File System Access API, auto-index supported audio/video formats, and build smart playlists represented by icon badges (audio note, film reel, favorites star, etc.).
Unified media core - one player component handles audio and video with seamless switching, shared shortcuts, unified icon-based transport controls, and consistent theming.
PotPlayer-inspired tools - quick bookmark jump list, A-B repeat, playback speed presets, frame-step, audio EQ, subtitle search/loading, and snapshotting to browser storage, each surfaced through glyph-led toolbars with translated tooltips.
Always-on controls - floating mini-player, global media keys (Media Session API), picture-in-picture, and background playback managed by the extension service worker with symbol-only overlays.
Stateful experience - per-file resume points, last-played folders, user-defined profiles (e.g., "Movie mode", "Podcast mode"), and syncable settings via chrome.storage, with locale-aware labels wherever text is required.