AI-Powered BPM Correction

Fix BPM Mistakes.
Automatically.

AI-powered analysis catches half-time, double-time, and tricky BPM errors in your DJ collection — with 95%+ accuracy and full dry-run safety before touching a single file.

1 in 5 Tracks Affected
95%+ Accuracy
NVIDIA GPU Accelerated
Download for Windows Download for macOS

Safe by default: dry-run preview + automatic backups. Supports Traktor, Serato & Rekordbox.

Features

Everything your collection needs.
Nothing it doesn't.

Built for working DJs who care about precision. Every feature designed to fit into your existing Traktor workflow.

Detection

Multi-Engine AI Analysis

Multiple independent AI engines analyze every track. Consensus voting resolves disagreements for 95%+ accuracy. ~1 in 5 tracks in any collection has a wrong BPM - half-time, double-time, or tricky tempo.

Safety

Safe by Default

Every run starts in dry-run mode — a full preview of all changes before anything is written. Automatic backups created before any modification. Analysis Lock respected.

Integration

Playlist-Aware

Works with Traktor, Serato, and Rekordbox collections. Filter analysis by playlist, crate, or the entire library. Bulk-fix a set or target just one playlist's problem tracks.

Performance

GPU Acceleration

Full CUDA support for NVIDIA GPUs dramatically reduces analysis time on large collections. Falls back gracefully to CPU with multi-core parallelism when no GPU is available.

Intelligence

Genre-Aware Priors

Configurable genre-specific BPM priors guide the cascade. Drum & Bass tracks are expected in 170-180 BPM range; house in 120-130 BPM. Reduces false positives dramatically.

Reports

Export Reports

Generate CSV, JSON, or HTML reports of detected errors, confidence scores, and applied corrections. Great for auditing large collections or sharing findings with other DJs.

Workflow

Up and running in
three steps.

No complex setup. No plugins. No Traktor restarts. Just point, analyze, and fix.

01

Open Collection

Point double-half-bpm at your DJ collection. Supports Traktor, Serato, and Rekordbox. Parses the full library, playlists, and crates automatically.

Works on Windows and macOS. Reads collection files directly without launching your DJ software.

02

Run Analysis

Select a scope — full collection, a playlist, or individual tracks. Multiple AI engines analyze simultaneously. GPU-accelerated when available.

Configure genre priors, confidence thresholds, and engine settings. Results are stored locally for instant review.

03

Review & Fix

Review detected errors in the GUI. Each track shows engine estimates, confidence scores, and the recommended correction. Approve all or cherry-pick.

Dry-run previews changes before any file is modified. Automatic backups created. Optionally export a report before fixing.

Interface

Designed for working DJs.

A clean PySide6 desktop app that stays out of your way. Dark-native, fast, keyboard-friendly.

Main Dashboard

Collection overview with BPM error heatmap, status indicators, and quick-filter controls.

Analysis Results

Per-track confidence breakdown with AI analysis results, octave detection, and one-click corrections.

Review & Export

Side-by-side before/after comparison, batch approval, and report export in CSV, JSON, or HTML.

UI previews are illustrative wireframes. Final interface may vary.

Pricing

Try free, upgrade when ready.

Scan 25 tracks for free. Upgrade to unlock your full collection.

Free
$ 0

No credit card required.

Download Free
Full Access
Pro
$ 4 /mo
or $40/yr Save 17%

Cancel any time.

Feature Free Pro
Collection scanning 25 tracks Unlimited
Multi-engine AI analysis
Consensus BPM correction
Dry-run preview
Apply corrections —
Traktor, Serato & Rekordbox Traktor only All 3
Export reports —
Genre-aware priors —
Playlist & crate filtering —
GPU acceleration —
Priority support —
Cancel any time. Subscription renews at listed price.
Secure payment. License locked to one machine. Contact support for transfers.
Download

Ready to fix your collection?

Download the desktop app and analyze your first tracks in minutes. Subscription required after free trial.

v1.0.1

Windows

10 / 11 · x64

.exe ~180 MB
Download for Windows

Windows installer with Start Menu & desktop shortcuts.

macOS

12+ (Intel & Apple Silicon) · Universal

.dmg ~210 MB
Download for macOS

Universal binary — same file for Intel and Apple Silicon.

System Requirements

Windows
  • Windows 10 / 11 (x64)
  • Python 3.11+ (bundled)
  • 8 GB RAM minimum, 16 GB recommended
  • NVIDIA GPU optional (CUDA 11.8+)
  • Traktor, Serato, or Rekordbox
macOS
  • macOS 12 Monterey or later
  • Intel or Apple Silicon (universal binary)
  • 8 GB RAM minimum, 16 GB recommended
  • Metal GPU acceleration on Apple Silicon
  • Traktor, Serato, or Rekordbox