Stop fixing tags.
Start mixing.

One scan, your entire library sorted. Clean metadata, smart crates, zero duplicates. Built by a DJ who got tired of the mess.

Get Library DJ See features

€45 · one-time · all updates included

Another Sunday afternoon lost to fixing broken ID3 tags instead of actually mixing. 16,000 tracks. Half tagged wrong. Duplicates everywhere. Three different spellings of "Afrobeats."

So I built the tool I wished existed. One scan, everything sorted. No cloud. No subscription. No AI that thinks it knows your genre better than you. Just clean metadata and smart crates, ready for the next gig.

— Dago

Eight tools. One app.

Everything a DJ needs to keep a library clean.

Full Library Scan

Point to your music folder. 16,000 tracks in under a minute. Reads ID3, Vorbis, APE tags and generates MD5 fingerprints for every file.

Tag Fixer

Catches junk URLs, watermarks, promo tags. Normalizes featuring credits. Batch-fix hundreds of issues at once.

Duplicate Killer

Detects by audio fingerprint, not filename. Compare side-by-side. Your files are never deleted.

Discogs Lookup

Auto-fill genre, label, year from Discogs. No API key needed.

AI Genre Hints

Gemini suggests genres from metadata. Needs internet.

Smart Crates & DJ Map

Auto-generated crates by genre, moment (warmup/main/close), or energy level. Export as M3U. See your DJ identity at a glance.

Backup & Restore

One-click ZIP backup. Restore in seconds. Music files never touched.

6 Audio Formats

MP3, FLAC, WAV, AAC, AIFF, M4A.

Track browser with search and inline editing

Track Browser SEARCH + EDIT

Smart crates auto-generated from your library

Smart Crates AUTO + M3U

€45, once.

No tiers. No subscription. One payment, done.

✓All 8 tools included
✓All future updates free
✓macOS 12+ (Apple Silicon + Intel)
✓Windows coming soon

30-day money-back guarantee. No questions asked.

Download

Enter your code to get Library DJ.

Apple Silicon Intel Mac

macOS 12+ required. ~4MB download.

If macOS says "Library DJ is damaged", open Terminal and run: xattr -cr /Applications/Library\ DJ.app

Questions

Does it delete my music?: Never. Library DJ only edits metadata tags. The duplicate finder removes database entries, not files.
Does it work offline?: Yes, fully. Discogs lookup and AI genre hints are optional and the only features that need internet.
How many tracks can it handle?: Tested with 16,000+. Virtual scrolling keeps the UI fast. SQLite with WAL mode under the hood.
Free trial?: No trial, but 30-day money-back guarantee. Full refund, no questions.
Windows?: Coming soon. Built with Tauri so Windows support is native. Mac first because that's what most DJs use.
How does the AI work?: Gemini suggests genres from track name and artist. Audio files are never uploaded anywhere.

Stop fixing tags.Start mixing.