DJ Music Library Software
The DJ app that unifies your entire music library — import from Spotify, enrich BPM & metadata automatically, and acquire tracks from your favorite sources.
Kombiner collapses all of that into one pipeline.
Every DJ workflow fits the same shape. Kombiner automates each stage — and lets you extend any of them with plugins.
Your music, flowing in automatically from every source.
Every field filled in — BPM, key, genre, label — from the best source available.
Buy and download tracks without leaving the app.
Push your library directly into your DJ software.
Every stage is powered by plugins — swap services, add sources, and export to any software.
From the first import to the final file — Kombiner handles the tedious parts of every stage so you can spend more time on the music.
Spotify, Beatport, local folders — one track table, no duplicates. New tracks appear automatically.
Adding a new source is a plugin. No app update required.
Multiple sources, one result. Beatport brings the label. Spotify brings listens count. The audio file brings the true BPM.
Each enrichment plugin stores results independently. Run them in any order, at any time.
Found a track on Beatport, SoundCloud, and Discogs? Kombiner stores all the links on the same track row. Click any icon to open it — no searching, no copy-pasting URLs between tabs.
Hover any track row to start a preview from the one-minute mark. Expand the player for a full spectrogram view. Kombiner reads BPM and key directly from the audio when the metadata is missing or wrong.
The track is already in your library with metadata filled in. Kombiner handles the last step: getting the actual file. Buy from Beatport, grab free downloads from Bandcamp, convert formats — all in one place.
When your library is complete — enriched, acquired, curated — Kombiner exports it to your DJ software with all metadata intact. No re-importing, no re-tagging.
The App
Every track you've ever liked, bought, or downloaded — unified, enriched, and ready to export. No extra windows, no extra apps.
The platforms every DJ actually touches — already wired in. More on the way, and anything else is a short plugin away.
Kombiner's core is intentionally minimal. Every import source, every enrichment service, every export format is a small script. Install community plugins, write your own, or swap out any service without waiting for an update.
Poll any source on a schedule. When a new track appears, Kombiner imports it automatically. No manual sync.
local-import watches a folder on disk spotify-import polls your liked songs beatport-import pulls your wishlist · roadmap Each enrich plugin writes its results independently. Install a new Discogs plugin today and run it against your entire existing library — your Beatport enrichment stays untouched. Per-track status shows exactly what's been run.
file-tags reads BPM, key, genre from audio tags beatport-enrich BPM, key, genre, label spotify-enrich listens count Acquire plugins know how to find the purchase or download page for a track and initiate the download — using the service links Kombiner already has stored. Go from wishlist to file without touching a browser.
beatport-buy adds tracks to the cart, opens checkout, downloads bandcamp-download downloads free / pre-owned tracks · roadmap Export plugins take your library — or a filtered subset — and write it in the format your DJ software expects. Playlist structure, cue points, metadata tags: all preserved exactly.
rekordbox-xml Rekordbox XML export · roadmap traktor-nml Traktor collection NML · roadmap serato-crate Serato crate files · roadmap // enrich_myservice/main.rhai
fn run_enrich(track) {
let meta = http_get("https://api.myservice.com/track/" + track.isrc);
#{
bpm: meta["bpm"],
key: meta["key"],
label: meta["label"],
}
}A complete enrichment plugin in under 10 lines. Scripts are sandboxed — they can only call the APIs you explicitly allow.
Kombiner ships in focused milestones. Here's what's already in your hands and what's coming next.
From scattered collection to clean library — import, enrich, acquire, and push files to your decks.
More import sources and richer enrichment — so no track falls through the cracks.
Organise your music into playlists, enrich tracks with more metadata, and enjoy a smoother, more refined experience from top to bottom.
Recommendation, harmonic mixing, and intelligent set-building — powered by the data you've already collected.
Try every feature free — upgrade only when your library grows past 100 tracks.
Free forever. No credit card needed.
Free forever. No credit card needed.
Billed monthly. Cancel any time.
Billed $32.99/year. Cancel any time.
Launch-week subscribers get
2 months free + 50% off forever.
Claim the launch offer →
Launch Week
Claim a serial number this week for two months of Pro free, then 50% off forever. Offer ends when the window closes.
No credit card during your free period · macOS & Windows
Kombiner is a desktop app for DJs that handles everything between discovering a track and having it ready to play. It imports your library from streaming services and local folders, enriches every track with BPM, key, genre, and label data from multiple sources, helps you buy and download files, converts formats, and exports to your DJ software — all in one place, mostly automatically.
The short version: it's the layer that sits between your streaming services and Rekordbox / Traktor / Serato.
No — and that's intentional. Kombiner handles everything before you load tracks into your DJ software. Think of it as the preparation layer: by the time a track reaches Rekordbox, it already has the right BPM, the right key, the right genre, and the actual audio file on disk.
Rekordbox, Traktor, and Serato are great at what they do. Kombiner does the hours of prep work that currently happens in five different browser tabs.
macOS and Windows at launch — both fully supported. Linux support is on the roadmap. Kombiner is built with Tauri, which runs natively on all three platforms, so it's a matter of testing and packaging rather than a fundamental limitation.
Kombiner is free up to 100 tracks — no credit card required. Beyond that, plans start at $3.29 / month (or $32.99 / year). During launch week, downloading the beta gets you 2 months free plus 50% off for life.
No developer account needed. Kombiner connects to Spotify using your regular account and polls your liked songs on a schedule you choose (every 5 minutes, every hour, or manually). When you like a new track on Spotify, it appears in Kombiner automatically — no "sync now" button.
Note: Spotify doesn't provide audio files, only metadata and links. Kombiner stores the Spotify URL alongside the track so you can find and buy the actual file later.
Kombiner deduplicates automatically. The track appears as a single row in your library regardless of how many sources know about it. All service links (Spotify URL, Beatport URL, local file path) are attached to that one row. You get one unified view, not three duplicates.
Yes. The local folder import works completely offline and requires no accounts. Just point Kombiner at your music folder — it reads the audio file tags and builds your library from there. Streaming service integrations are optional additions, not requirements.
The database is designed for desktop-scale libraries — up to roughly 100,000 tracks performs well. Folder scanning is incremental (it doesn't re-read files it's already seen), and search and filtering use indexed queries so they stay fast as the library grows.
Libraries above 100k tracks are untested in the current build — if you have one, we'd genuinely like to hear from you.
Each enrichment plugin stores its result independently — Beatport's BPM lives in the Beatport enrichment, Spotify's BPM lives in the Spotify enrichment. Kombiner shows you a single display value but you can see every source's value in the track detail panel and override any of them.
Rule of thumb: audio-detected BPM (analysed directly from the file) is usually the ground truth. Service-sourced BPM is a good starting point when you don't have the file yet.
Yes to both. Double-click any cell in the track table to edit inline. For bulk edits, select multiple tracks (checkboxes or Cmd+click) and use the bulk actions bar — set genre, key, label, or any other field across hundreds of tracks at once.
No. Each enrichment plugin writes to its own result store. If you've manually set a BPM value, re-running an enrichment plugin won't touch your manual override — it updates the plugin's result, which you can then choose to apply or ignore.
No code needed to use Kombiner. Plugins are what power the import sources, enrichment services, and export formats under the hood — but they come pre-installed and pre-configured for the most common services. You just enable them in Settings and enter your credentials.
If you want to write a plugin for a service Kombiner doesn't support yet, they're short Rhai scripts (a Rust-native scripting language). A complete enrichment plugin is typically under 100 lines of code.
Two paths: check the roadmap (Discogs, Bandcamp, YouTube Music, and several others are already planned for v0.2), or write a plugin yourself. A new service can be added without waiting for a Kombiner update — check existing plugins as a starting point. Detailed plugin authoring guide will be available later.
Kombiner's plugin host runs scripts in a Rhai sandbox — plugins can only call the specific functions Kombiner exposes (HTTP requests, database reads/writes for their own enrichment data, file path access). They cannot access arbitrary files, execute system commands, or make API calls Kombiner hasn't explicitly permitted.
That said, treat community plugins with the same care you'd give any third-party software — stick to well-reviewed plugins from trusted sources.
Everything is stored locally on your machine in ~/.kombiner/ — an embedded database with no external server or cloud
dependency. Kombiner doesn't have a backend; there's nothing
to send your library data to.
The only network traffic Kombiner generates is the API calls made by the plugins you've enabled (e.g. fetching metadata from Spotify or Beatport on your behalf).
The core app — library viewing, search, filtering, audio playback, manual editing — works fully offline. Enrichment and import plugins that fetch from online services obviously require an internet connection, but they fail gracefully (with a clear error status per track) and retry automatically when connectivity is restored.
Playback and analysis: MP3, FLAC, WAV, AIFF, AAC, OGG Vorbis. Format conversion handles MP3, FLAC, WAV and AIFF. Audio decoding is handled by a pure-Rust implementation — no external codecs or FFmpeg installation required.
