CrateSync mirrors your music folders directly into Serato crates — automatically, non-destructively, and in seconds. No dragging. No manual sorting. Just sync.
What is CrateSync?
Serato DJ organizes tracks in crates — but keeping them in sync with the folders on your hard drive is a constant chore. Every time you add, move, or delete a track, you have to update the crate manually.
CrateSync solves this with a simple idea: you define the relationship between a folder and a crate once, and CrateSync keeps both in step — automatically.
Your audio files are never touched. CrateSync only reads folder contents and writes the crate index. That's it.
Core features
Link any folder on your drive to a Serato crate. CrateSync watches the relationship and keeps both sides in sync — every time you hit "Mirror now!" or trigger it from the menu bar.
Have a deeply nested music library? CrateSync reads your folder hierarchy and recreates it as an identical crate structure in Serato — automatically, in one click. No manual crate setup. Ever.
Bridge the gap between Serato and other music-playing apps you use. Export any crate as a standard playlist file or drop in a playlist to create a new Serato crate.
CrateSync can snapshot your Serato crate structure at any moment and restore it with a single click. Peace of mind when trying out a new crate sorting in Serato or backing up everything before and after big changes to your library.
How the sync feature works
01
Choose any folder on your drive and map it to an existing Serato crate. One-time setup — no repeated configuration needed.
02
CrateSync scans your folder and updates the crate: new tracks get added, removed tracks get dropped. Runs in seconds, even with large libraries.
03
Your crates are up to date. Launch Serato DJ and find exactly what you expect — clean, organized, ready for the night.
Under the hood
Everything you need. Nothing you don't.
Tracks added to a folder are added to the crate. Tracks removed from the folder are removed from the crate. Always in step.
CrateSync never moves, renames, or deletes audio files. It only reads your folders and writes Serato's crate index files. Your music is untouched.
Run CrateSync silently in the background. Trigger a sync run from the menu bar without ever opening the main window.
A full log of every sync run — which tracks were added, which were removed, and any folders that were unreachable. Full transparency.
Let CrateSync scan your existing sync folders and generate all folder-crate mappings automatically. Setup in one click.
If a mapped folder is on an unmounted drive, CrateSync skips it and leaves the crate untouched. No accidental deletions when gear is off.
Why CrateSync?
Genre, artist, BPM — your folder structure already reflects how you think about music. CrateSync just makes Serato agree.
After a download session, a folder rename, or a library cleanup, your Serato crates are immediately out of date. CrateSync fixes that in seconds.
Nested crate structures are fully supported. Mirror entire subtrees of folders into matching Serato subcrates with no extra effort.
CrateSync can save a full snapshot of your current Serato crate structure — the crate names, nesting, and track assignments. Audio files on disk are not a part of this backup, because they're never touched in the first place - the backup captures the organization, not the music itself. If anything ever goes sideways, you can restore exactly how your crates were arranged before - with just one click!
Built with Swift and SwiftUI. Fast, lightweight, and feels right at home on your Mac. No Electron, no web wrappers.
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Free for macOS. No account required.
No subscription. Just drag it in and sync.