Our verdict: Harmonoid is a good-looking, light music player for people with their own music files, and it is not another Electron app. It plays nearly every format through mpv and FFmpeg. The code is public but not open source, and crossfade, artist images, the tag editor and lyrics translations are premium features.
About Harmonoid
Harmonoid is a music player and library manager by Hitesh Kumar Saini, built with Flutter and following Material Design 3 and 2. It indexes your music folders, reads tags, shows albums, artists and genres, and plays through an mpv and FFmpeg backend, so it supports practically all audio formats.
Playback options include gapless playback, speed and pitch adjustment, volume boost, ReplayGain and exclusive audio. It also has lyrics from files or online, playlists, Last.fm scrobbling and Discord Rich Presence. According to the release notes, crossfade, artist images, the tag editor and lyrics translations are premium features for people who support the project on Patreon. The source is published under the PolyForm Strict License, which is not an open-source license.
What it does well
- Fast music library. Indexes local folders and reads tags quickly, with multiple artist and genre support.
- mpv/FFmpeg playback. Plays practically every audio format.
- Audio controls. Gapless, speed, pitch, volume boost, ReplayGain and exclusive mode.
- Lyrics. LRC files, embedded tags or online lyrics, shown in sync.
- Premium extras. Crossfade, artist images and a tag editor for Patreon supporters.
Who it is for
Good fit
People with a local music collection who want a modern, lightweight player.
Look elsewhere
Streaming service users, or anyone who requires an OSI open-source license.
Pros and cons
Pros
- Modern Material Design interface
- Plays nearly every audio format
- Low memory use, not Electron
- Portable version available
Cons
- Source-available, not open source
- Crossfade, tag editor and artist images are premium
- Windows builds are not code signed
How to install Harmonoid
The download button gets the latest Windows x64 installer linked from harmonoid.com; a portable ZIP and Arm64 build are on the same page. Windows builds are not code signed, so SmartScreen may warn on first launch. Add your music folders in Settings after the first start.
Questions about Harmonoid
Is Harmonoid free?
Yes, the player is free to download and use. Crossfade, artist images, the tag editor and lyrics translations are premium features for people who support the developer on Patreon.
Is Harmonoid open source?
No. The code is public but licensed under PolyForm Strict 1.0.0, which does not allow modification or redistribution like an open-source license.
Does Harmonoid stream music?
No. It plays and manages music files stored on your device.
