Sonosano is an open-source P2P song player for preserving, archiving, sharing, analysing and listening to music.
MPV Shim
Plex MPV Shim sends media from Plex mobile and web apps to the mpv player through an unofficial client.

About MPV Shim
MPV Shim is an unofficial, open-source Plex client that casts media from the Plex mobile and web apps to the mpv player. It runs on Windows, Linux and macOS, and is described as a lightweight alternative to a Chromecast for Plex: media is meant to Direct Play, and subtitle handling includes tools for changing tracks. The client does not require logging in or separate configuration — you launch it and cast from another Plex application.
During playback a menu (opened with c on a computer or the home button in the Plex mobile apps) allows adjusting transcoding quality, changing audio and subtitle tracks with their names, applying those changes to a whole series, and configuring shader packs and SVP profiles. Casting from the Plex web app requires being on the same network as a Plex server, or installing the MPV Shim Local Connection user script. The on-screen mpv controller cannot change audio or subtitle track settings for transcoded media or load external subtitles; those changes must be made through the menu or the casting app.
Key features
- Casts media from Plex mobile and web apps to mpv
- In-player menu for transcoding quality and default transcoder settings
- Change audio and subtitle tracks, including series-wide changes
- Shader packs with FSRCNNX and Anime4K profiles preconfigured
- Optional SVP integration configurable without exiting the player
- Custom keyboard shortcuts for skipping, watched status and seeking
- Open source and does not require logging in to the client or setting it up
- Media is intended to Direct Play, with subtitle tools and per-series track changes
- Shader packs and SVP integration are configurable from within the player
- Unofficial client, so compatibility with Plex is not guaranteed
- Casting from the Plex web app requires being on the same network as a Plex server or installing a user script
- The on-screen mpv controller cannot change audio or subtitle tracks for transcoded media or load external subtitles
MPV Shim at a glance
- Category
- Software & Utilities › Linux & Mac Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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MPV Shim FAQ
Do I need to log in or configure the client before using it?
Can I cast from the Plex web app?
How do I open the in-player menu?
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