01
Hear the whole album
Audio is decoded in Rust, with gapless playback within an album and native sample rates whenever the device accepts them.
Symphonia → cpalA local-first music player
Your library,
in its element.
Harmonia is a small, fast desktop player for people who still care how an album feels. Browse beautifully, hear every transition, and keep your music exactly where it is.
Harmonia
Library / Albums
Recently added12 tracks
#TitleArtistAlbumTime
Genre station
Late-night classical
Built from the tags already in your library.
Spring, I. AllegroThe Four Seasons · Antonio Vivaldi
1:12 / 3:28
Public-domain demo library · original CSS artwork
LOCAL BY DEFAULTALBUMS WITH ROOM TO BREATHEMADE FOR LISTENING
A better relationship with your library
Less catalog.
More connection.
Local libraryReady to play
~/Music/Albums24 albums
The Four SeasonsAntonio Vivaldi · 4 tracks
Indexed
GymnopédiesErik Satie · 3 tracks
Indexed
Water MusicGeorge Frideric Handel · 6 tracks
Indexed
Indexed locally0 uploads
The best music apps help you get out of the way. Harmonia makes your own collection feel immediate again: cover art first, tags close at hand, and a player bar that never loses the thread.
Point it at a folder. Harmonia indexes your files, groups albums thoughtfully, and leaves the source untouched unless you explicitly ask to edit a tag or cover. No upload step. No account. No cloud-shaped detour.
See what it understandsThe details add up
Built for people
with real libraries.
02
Keep albums intact
Album-artist tags, folder structure, multi-disc sets, and cover art all work together so your collection reads like your collection.
Album-first browsing03
Edit without collateral damage
Batch tag edits only write fields you touch. Add a cover once and Harmonia embeds it across the album for other players to see.
Conservative metadata tools04
Tag radio02:16
Late-night classical
Make discovery feel personal
Playlists, a simple crate for favorites, queue reordering, and radio stations built from the genre tags already in your library.
Bring the collection with you
Many formats.
One calm home.
Harmonia keeps codec support explicit, so an M4A can tell you whether it is AAC or ALAC and your list never fills up with files that cannot play.
MP3FLACAACALACWAVAIFFOgg VorbisMatroska
3platforms
0uploads required
1source of truth
Windows · macOS · Linux
Music is already the interesting part. Harmonia gives it a place to land.
Local-first, album-aware, and intentionally small.
Ready when you are
Make room for
the whole library.
Harmonia runs on Windows, macOS, and Linux. Point it at a folder and start listening.
A desktop player for your local files • No copyrighted recordings are embedded in this preview