What DJ software does Music Library Doctor support?

Music Library Doctor natively supports Rekordbox, Serato DJ, and VirtualDJ (including VirtualDJ Favorite Folders). Engine DJ and Traktor support are coming soon. Unlike other tools that require XML exports, we read your library directly.

Does Music Library Doctor work with video files? What formats are supported?

Yes. Music Library Doctor is file-format independent because it fixes the links inside your DJ software database. If a file is in your library, we can repair its path. That includes audio (MP3, WAV, FLAC, AIFF, AAC) and video (MP4, MOV, AVI, etc.).

Does Music Library Doctor work on Windows?

Yes! Music Library Doctor works on both Windows 10+ and macOS. We support Apple Silicon (M1/M2/M3/M4) and Intel Macs, as well as Windows 64-bit systems.

How much does Music Library Doctor cost?

Music Library Doctor offers a Free tier, Pro Monthly at $4.99/month, and Lifetime access at $49 (one-time payment). This is 3x cheaper than competing DJ software tools that charge $150 or more.

Can Music Library Doctor fix missing tracks in my DJ library?

Yes! Music Library Doctor automatically detects missing tracks, broken links, and offers smart suggestions to fix them. You can fix issues individually or use batch operations.

Music Library Doctor

Name: Music Library Doctor
Author: Music Library Doctor

Import any playlist. Catch fake-320 MP3s. Fix your library.

For DJs and music collectors who care about quality

3x Cheaper Than Alternatives Windows + macOS Native Integration 100% FREE Library Conversion NEW · Track Matcher (Spotify & YouTube Music)

Rekordbox

Serato

VirtualDJ

Half your 320 kbps MP3s are probably fake. Music Library Doctor scores every track with FFT analysis, catches acoustic duplicates across formats, and can swap worn-out files for cleaner versions in one click. Works with Rekordbox, Serato, and VirtualDJ — or with no DJ software at all. Local-first, Mac & Windows.

Download Free $19 Founding Price

Browse 100+ guides and how-tos →

Local-first · no cloud upload

Free tier · full library scan

Mac & Windows native

New in v3.0 · Track Matcher

Turn any playlist into a ready-to-spin crate

Paste a Spotify or YouTube Music URL. Drop in a text list or an .m3u file. Music Library Doctor matches every track against your library, sends a finished crate into Rekordbox, Serato or VirtualDJ — and completes what's missing automatically.

①

Import

Spotify public playlist (no sign-in). YouTube Music search or URL (no account). Text list or .m3u file. Whatever you've got.

②

Match

Smart title + artist scoring against your whole library. False-positive guards keep "feat." chains and look-alike filenames from outranking the real match.

③

Send + Complete

Real crate into Rekordbox / Serato / VirtualDJ. Anything missing lands as a placeholder. One click on Fix & Upgrade All restores the rest from YouTube Music.

✓ No sign-in ✓ Lifetime license, not subscription ✓ Native VirtualDJ .vdjfolder ✓ Source URL embedded in DJ database ✓ Auto-restore missing tracks (Pro)

Supported sources & targets

Import from:

♫ Spotify public playlists — no sign-in
▶ YouTube Music (search or URL) — full pagination, 300+ tracks
≡ Plain text track lists
≡ .m3u / .m3u8 files

Send into:

⇪ Rekordbox (native master.db)
⇪ Serato (native crate)
⇪ VirtualDJ (native .vdjfolder)
⇪ M3U / CSV / PDF for backups & print

See Track Matcher in action Get Music Library Doctor

Live demo · audio + visual

Hear & see the difference

Real 320 kbps preserves the full frequency content up to ~22 kHz — the high-frequency "air" of cymbals, hi-hats, and breathy detail. A fake 320 (re-encoded from a lower-bitrate source) has a brick-wall spectral cliff around 14 kHz. Listen to the hi-hat shimmer in REAL vs the muffled version in FAKE — the same physics Music Library Doctor scans for at library scale.

0 Hz 5 kHz 10 kHz 15 kHz 20 kHz

MLD Quality Score

— Click a button above to scan —

Demo · illustrative score on a synthesised signal. The real MLD scoring engine analyses the actual audio file on your disk.

Half the 320 kbps MP3s in a typical DJ library are fakes like this one. MLD scores every file 0–100 and surfaces them in minutes.

Audit your own library → Download Free

Pick the path that matches you

Music Library Doctor serves two libraries equally well — DJs with crates and playlists, and music collectors with folders full of MP3s and FLACs.

🎧

For DJs

Cross-app path repair, free playlist conversion between Rekordbox, Serato, and VirtualDJ, acoustic duplicate scan, and fake-320 detection — across every DJ database on your machine.

+ Engine DJ, Traktor

Explore DJ features

📁

For Music Collectors

Find fake-320 MP3s and fake FLACs with FFT analysis, catch acoustic duplicates across formats, organize scattered folders, and swap worn-out tracks for cleaner versions — no DJ software required.

iTunes / Music.app Plex Navidrome Roon

Explore collector features

No DJ software? No problem.

Music Library Doctor's Folder Library mode auto-detects your ~/Music, iTunes Media, Apple Music, and Downloads folders on first launch. Scan for duplicates, find fake-320 MP3s, audit audio quality, and upgrade worn-out tracks — all without installing or owning Rekordbox, Serato, or VirtualDJ.

Wedding DJ or running a multi-op team?

Standardize music prep across your whole team and cut hours off every event. One-time lifetime license — license every DJ, no per-seat fee. See how it works for wedding DJ teams →

Why DJs and Collectors Choose Music Library Doctor

3x More Affordable

$49 Lifetime vs $150 for similar tools

Save $100+

Multi-Platform Support

Rekordbox + Serato + VirtualDJ

Transfer playlists between all platforms

Windows + macOS

Works on any computer

Not macOS-only

Features

🔍

Real Audio Quality Score

FFT spectrum analysis scores every track 0–100 and flags fake-320 MP3s and fake FLACs — the files whose tags claim high quality but whose audio was up-encoded from a lower-bitrate source.

Learn more →

🎯

Acoustic Duplicate Scan

Chromaprint fingerprints catch the same recording across different formats, bitrates, and tag spellings. Quality-aware grouper recommends which copy to keep. Deletes go to Trash — never hard-delete.

Learn more →

↗️

Smart Source Upgrade

Swap worn-out tracks for cleaner versions in-app, one click. Original goes to Trash, reversible at every step.

Pro feature; you are responsible for ensuring you have rights to obtain replacement content.

📁

Folder Library Mode

No DJ software? No problem. Folder Library mode auto-detects your ~/Music, iTunes, Apple Music, and Downloads folders so anyone with a music collection can use the quality scoring and duplicate scan.

Learn more →

NEW · PRO

🪄

Sound Recognition

Got files named track01.mp3 or unknown.flac? Sound Recognition listens to a short sample, identifies the actual song, and renames it — artist, title, and album metadata written to the tag, the file system, and your Rekordbox / Serato / VirtualDJ database in one step.

Pro feature; requires an online connection. Daily quota applies.

Learn more →

🎵

Playlist Tree View

Organize your music collection hierarchically. Navigate through playlists and folders with ease.

🔍

Smart Track Search

Find tracks across all playlists instantly. Advanced search with filters and quick results.

🛠️

Fix System

Detect missing tracks, broken links, and duplicates. Get smart suggestions to fix issues.

📊

Analytics

Track statistics, genre distribution, and playlist insights. Know your collection inside out.

💾

Export & Backup

Export playlists to various formats. Backup your collection securely.

🔄

Playlist Transfer

Transfer playlists between Rekordbox, Serato, and VirtualDJ seamlessly. Convert your entire library from one platform to another with a few clicks.

🌐

Cross-Platform

Works on Windows and macOS. Same experience everywhere.

⚡

Lightning-Fast Performance

Startup in under a second. Process thousands of tracks instantly. Uses 90% less memory than web-based alternatives. Built for speed, optimized for efficiency.

🔒

Enterprise-Grade Security

Bank-level encryption. Server-side key management. Mathematically proven security architecture. Your data and license information are protected with military-grade cryptography.

📦

Minimal Footprint

Tiny installation size (~15-20MB vs 100-150MB for alternatives). Low memory usage. Fast downloads. No bloat, just pure performance.

🎵

Media Player

Preview tracks directly in the app. Play, pause, and control volume without leaving Music Library Doctor.

Knowledge base

100+ guides for DJs and music collectors

Playlist migration between every DJ app, fake-320 / fake-FLAC detection, library repair, audiophile workflows, and more. Browse by category or jump straight to a topic.

↗ 56 guides

Library Migration

Move between Rekordbox, Serato, VirtualDJ, Engine DJ, Traktor, Mixxx, djay Pro.

🔧 10 guides

Library Repair

Fix missing tracks, broken paths, corrupted databases — Rekordbox, Serato, VirtualDJ.

🎯 5 guides

Duplicate Detection

Acoustic fingerprint matching across formats and bitrates — the dedupes filename matchers miss.

🔍 7 guides

Audio Quality Analysis

FFT spectrum scoring — catch fake-320 MP3s and fake-FLACs at library scale.

📁 4 guides

Library Organization

Consolidate scattered folders, merge DJ libraries, organize large music collections.

💿 13 guides

Folder Library Mode

For music collectors — Plex, Navidrome, Roon, audiophile workflows. No DJ software needed.

🎚️ 3 guides

DJ Software Setup

External drives, USB prep, club-ready libraries, hardware best practices.

⚖ 4 guides

Alternatives & Comparisons

MLD vs Lexicon, Mixo, Cratehackers, MLT — features, pricing, workflows compared.

Popular guides

★ New in v3.0

Track Matcher — Spotify & YouTube Music → DJ apps

Import

Spotify playlist into Rekordbox

Import

YouTube Music playlist into Serato

How-to

How to detect fake 320 kbps MP3 files

Migration

Rekordbox to Serato DJ playlist transfer

Comparison

Best DJ library tool 2026 — side-by-side

Repair

Fix missing tracks in Rekordbox

Audiophile

Audiophile library tools — Plex, Navidrome, Roon

Blog

Why fake-320s exist and why they matter

Browse all guides →

or read the blog for deeper methodology dives

Download Music Library Doctor

Available for Windows and macOS

Apple Notarized

Code Signed

Secure Download

macOS (Apple Silicon)

For M1/M2/M3/M4 Macs

Download (.dmg)

macOS 11+ • Apple Silicon • v...

macOS (Intel)

For Intel-based Macs

Download (.dmg)

macOS 10.15+ • Intel x64 • v...

Windows

For Windows users

Download (.exe)

Windows 10+ • 64-bit • v...

Secure Download

🔄 Automatic Updates: Music Library Doctor automatically checks for updates and notifies you when a new version is available.

Current Version: v... | Automatic updates enabled

DJ Software Support

Native integration with all major DJ software platforms

⚡

Direct Native Integration

Unlike other tools that require XML exports, Music Library Doctor reads your DJ library directly. No manual exports, no sync issues—just instant access to your entire collection.

✓ Native

Rekordbox

✅ Full Support

Native library access

No XML needed!

✓ Native

Serato

✅ Full Support

Native crate access

Direct integration!

✓ Native

VirtualDJ

✅ Full Support

Native folder format

Favorite Folders supported

Direct access!

Coming Soon

Engine DJ

🚧 In Development

Denon/Engine support

Coming Soon

Traktor

🚧 In Development

NI collection files

Upgrade Your Lowest-Quality Tracks

Spot a low-bitrate track in your library? Find a cleaner version and swap it in — without breaking your playlists, cue points, or beat grids.

✓ Side-by-side preview. Hear the original and every candidate before you commit. No guessing.
✓ Real quality score. Spectral analysis reports the actual quality of each candidate — not just the bitrate the file claims to have.
✓ One-click replace. Your playlists keep pointing to the right track. The old file is moved to the Trash, never permanently deleted.
✓ Pick your format. 320 kbps MP3 for maximum compatibility, or original-quality M4A — your call.
✓ Lightning-fast search. Results land in under two seconds. Quality scores fill in as they're ready — no more staring at spinners.

🎚️

From 128 kbps to crisp

That 12-year-old 128 kbps file you've been spinning at gigs? Swap it for a cleaner version in under a minute — without losing your playlists, cue points, or beat grids.

Pro feature. Right-click any track to start.

Coming Soon

Exciting features we're working on

Coming Soon

Engine DJ Integration

Full support for Denon DJ's Engine DJ software. Manage your Engine library and USB drives.

• Native database access
• USB drive support
• Playlist management

Coming Soon

Traktor Integration

Native support for Native Instruments Traktor. Work with collection files and playlists directly.

• Collection file parsing
• Playlist management
• Metadata sync

Coming Soon

📈

Advanced Analytics

Deep insights into your music collection. Genre analysis, BPM distribution, key detection, and more.

• BPM analysis
• Key detection
• Genre distribution

How It Works

Select Your DJ Software

Simply choose your DJ software (Rekordbox, Serato, VirtualDJ, and more). Music Library Doctor reads your library directly—no XML exports or manual imports needed. True native integration.

Instant Analysis & Detection

Music Library Doctor automatically scans your entire collection for missing tracks, broken links, and duplicates. Powered by native performance, analysis happens in seconds—not minutes like web-based alternatives.

Smart Fix Suggestions

Get intelligent, context-aware suggestions to fix broken paths instantly. Apply fixes individually or wait for our upcoming batch fix feature to resolve multiple issues at once.

Transfer Playlists Between Platforms

Switch between DJ software without losing your playlists! Transfer playlists from Rekordbox to Serato, Serato to VirtualDJ, VirtualDJ to Rekordbox, and more. Preserve your playlist hierarchy and structure. Perfect for DJs who use multiple platforms or are switching software.

VirtualDJ Favorite Folders are transferred like playlists, so your folder-based sets move with you.

Unmatched Performance & Security

Experience desktop-class performance that web-based applications simply cannot match. Start in under a second (vs 3-5 seconds for alternatives). Use 90% less memory (10-20MB vs 100-200MB). Process thousands of tracks instantly. All while maintaining enterprise-grade security with bank-level encryption and server-side key management. Your data is protected, your workflow is accelerated.

Pricing

Choose the plan that fits your needs. All plans include automatic updates and cross-platform support.

Free

Perfect for trying out

✓ Playlist viewing
✓ Basic track search
✓ Missing track detection

Download Free

🔥 67 spots left

Lifetime

Founding DJ Price — first 100 only

$49

$19

One-time · no subscription

✓ Fix missing tracks automatically
✓ Bulk Fix All — hundreds at once
✓ Duplicate Finder
✓ Rekordbox, Serato, VirtualDJ
✓ Lifetime updates
✓ Engine DJ, Traktor (coming soon)

Claim Your $19 Spot →

Monthly

$4.99/mo

If you prefer monthly billing

✓All PRO features
✓Cancel anytime

Subscribe — $4.99/mo

Contact & Feedback

Have questions, suggestions, or found a bug? We'd love to hear from you!

Join Our Community

WhatsApp Group

Connect with other DJs, get tips, share feedback, and be the first to hear about new features.

💬 Join WhatsApp Group

We typically respond within 24 hours

Frequently Asked Questions

Everything you need to know about Music Library Doctor

Ready to Organize Your Music?

Join DJs worldwide who trust Music Library Doctor to manage their Rekordbox, Serato, and VirtualDJ collections. Transfer playlists between platforms, fix missing tracks, and keep your library organized.

Download Now