Send your library to a real Rockbox iPod.
Your Navidrome, your iPod, your files. NaviBeat asks your own server to transcode the tracks and resize the cover art, lays the files out in folders Rockbox understands, and writes proper .m3u8 playlists with correct on-device paths. Nothing leaves your own server. A free NaviBeat theme is installed on first connect as a bonus.
Four things to know about Rockbox Bridge
Your server, your files
The music comes from your own Navidrome. Your server does the transcoding and art resizing. Nothing is uploaded anywhere, and no third-party service is involved.
Send-to, not sync
No background sync, no conflict resolution, no surprises. You right-click a song, album, artist, or playlist and choose Send to RockBox. It copies exactly what you picked.
Art that actually renders
Cover art is re-encoded to a baseline JPEG that Rockbox can read, sized for the iPod screen. This fixes the classic "big art will not show" problem on old hardware.
Read-back through Navidrome
Phase 2 reads plays and ratings back into your Navidrome, which forwards them per your own server config. NaviBeat never scrobbles directly to Last.fm.
How it works
Plug it in, right-click, done.
Rockbox does not use the proprietary iTunes database. It plays files straight from the filesystem and builds its own tag database on the device. So this is an honest "transcode, re-encode art, copy into the right folders, write playlists" pipeline, not a reverse-engineered sync protocol.
Connect over USB
Plug in the Rockbox device. It mounts as a normal USB drive. One time, you grant NaviBeat access to it with a single click. After that, reconnecting is automatic, and a "RockBox Player" entry appears in the sidebar.
Right-click, Send to RockBox
On any song, album, artist, or playlist in your library, choose Send to RockBox. A progress sheet shows each track and can be cancelled at any time.
Your server transcodes
NaviBeat asks your own Navidrome to produce the audio in your chosen format and bitrate (MP3, AAC, Opus, or Vorbis) and to resize the cover art to a baseline JPEG the iPod can read.
Correct on-device paths
Files land as /Music/Artist/Album/Track with sanitized names, a cover.jpg per album, and playlists written as .m3u8 using paths from the device root, the way Rockbox expects.
Pick your quality
A dedicated Rockbox section in macOS Settings lets you choose format, bitrate, and cover-art size, plus what to do on duplicates: skip or overwrite. Set it once and forget it.
Browse and remove
Click the device to see what is on it, grouped All, Albums, Artists, and Playlists, in the same grid you already know. Remove anything you no longer want directly from there.
What it does · What it does not
A clean scope line, drawn on purpose.
Rockbox Bridge is deliberately a one-way push of your own music, plus an optional metadata read-back in Phase 2. It is not a two-way sync engine, and it never touches anything but your own server and your own device.
What it does
- Sends music to the device, transcoded to MP3, AAC, Opus, or Vorbis at the bitrate you choose, with album art re-encoded so it renders.
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Writes correct on-device paths and proper
.m3u8playlists, so browsing and playback just work. - Lets you browse and remove what is on the device, grouped All, Albums, Artists, Playlists.
- Reads plays and ratings back (Phase 2) into your Navidrome, which forwards them per your own server config.
What it does not do
- No two-way sync or conflict resolution. Send-to is intentional and predictable, not a background mirror.
- No direct scrobbling to Last.fm or ListenBrainz. All read-back goes through your Navidrome, honoring NaviBeat's standing policy.
- No firmware work. NaviBeat does not install or update Rockbox itself. Your device already runs Rockbox.
- Audio transfer stays one-way. Phase 2 reads back only metadata: plays, ratings, and playlist definitions, never audio files.
Bonus, free
A NaviBeat theme for your iPod.
On first connect, NaviBeat can install a free Rockbox theme that matches the app: pure black and copper, big readable type, album art, and the NaviBeat mark. No statusbar clutter, just the music.
It ships as two skins over one shared core, so you can keep it clean or go deep.
- NaviBeat: the clean skin. Track, artist, album, a single thicker scrubber that also shows volume the classic iPod way, play mode, and battery.
- NaviBeat Audiophile: a mono variant that adds kHz, bit depth, lossless and bitrate readouts, channels, ReplayGain, and a left-right VU.
Installing the theme is opt-in, and you can switch it on or off in the device's own Theme Settings at any time.
Build roadmap
What is being built, transparently.
Rockbox Bridge is a macOS feature in active development. It is not in the App Store build yet. Here is the order things are being built, with honest status. Orange means actively in development. Gray means planned and queued. No vapor.
Phase 1 · The one-way push
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In development · Phase 1
Paid unlock + Rockbox settings
A one-time in-app unlock (around $5, separate from the base app) opens a dedicated Rockbox section in macOS Settings: format, bitrate, cover-art size, and what to do on duplicates. Includes Restore Purchases.
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In development · Phase 1
Connect over USB
NaviBeat detects the mounted device, grants access with a single click, confirms it is really a Rockbox device, and shows a "RockBox Player" entry in the sidebar. Reconnecting later is automatic, no repeated prompts.
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In development · Phase 1
Server-side transcode + art re-encode
Your own Navidrome produces the audio in the format and bitrate you chose, and resizes the cover art to a baseline JPEG that Rockbox can read. No third-party service, no uploads.
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In development · Phase 1
Send to RockBox
Right-click a song, album, artist, or playlist to send it, with a cancelable progress sheet. Files are laid out as
/Music/Artist/Album/Trackwith acover.jpgper album, and playlists are written as.m3u8with device-root paths. -
In development · Phase 1
Browse and remove on device
Click the device to browse its contents grouped All, Albums, Artists, and Playlists, mirroring the library grid you already use. Remove items you no longer want, and affected playlists update.
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In development · Bonus
NaviBeat Rockbox theme
A free theme installed on first connect: two skins (clean and Audiophile) over one shared core, drawn for the iPod screen in pure black and copper. Opt-in, switchable on the device at any time.
Phase 2 · Read-back, through your Navidrome
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Planned · Phase 2
Plays back into Navidrome
When you reconnect, NaviBeat reads the plays Rockbox logged on the device and, after you review and confirm, submits them to your Navidrome. Navidrome updates your play counts and forwards to Last.fm or ListenBrainz per your own server config. Nothing is submitted silently, and NaviBeat never scrobbles directly.
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Planned · Phase 2
Ratings back into Navidrome
Star ratings you set on the iPod can be read back and written to your Navidrome, with a conflict policy you control: device wins, server wins, or only fill in the blanks. Reviewed and confirmed before anything is written.
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Planned · Phase 2
Device-made playlists back into Navidrome
Playlists you built on the device can be resolved against your library and recreated in Navidrome, with any unmatched tracks listed plainly rather than guessed.
Phase 1 is the one-way push and ships first. Phase 2 is the metadata read-back and can follow in a later update without holding up Phase 1. The theme is independent and lands whenever its on-device export is finished. Final format and price details are still being set.
Why build this at all?
Because you should be able to own your music on real hardware. A Rockbox iPod is a beautiful, single-purpose player with physical buttons and long battery life. The only annoying part is getting your library onto it in a format and art layout it likes.
That is the gap NaviBeat closes on the Mac you already use. Your Navidrome, your iPod, your files. The transcoding happens on your own server, the files land in folders Rockbox understands, and the playlists carry the right paths. Privacy is the default, not a setting: nothing leaves your own server, and there is no third-party service in the loop.
Get NaviBeat now, Rockbox Bridge is on the way.
NaviBeat is on the App Store today as one $5.99 Universal Purchase for every Apple device. Rockbox Bridge is a macOS feature in active development and will arrive as a separate paid unlock (around $5) in a future update. It is not available to download yet.