Key & BPM Finder

Instantly analyze audio files to detect key, BPM, and musical characteristics. Perfect for DJs and music producers.

# Key & BPM Finder - Professional Audio Analysis Tool 🎵 **Instant audio analysis for DJs, music producers, and music enthusiasts. Get professional-grade results in seconds!** ## 🚀 Why Choose Key & BPM Finder? ### ⚡ **Lightning-Fast, Precision Analysis** - **BPM Detection** - Accurate beat detection with <1% error rate - **Key Recognition** - Automatic detection of musical keys and relative keys (e.g., C major → A minor) - **Audio Features** - Energy, danceability, and mood analysis at a glance - **Format Support** - Works with MP3, WAV, FLAC, OGG, and more ### 🎯 **Built for Professionals** - **DJ Mixing** - Perfect BPM matching for seamless transitions - **Music Production** - Key analysis for harmonic mixing and composition - **Music Education** - Visual analysis for teaching music theory - **Library Management** - Organize your music collection by key and tempo ### 🔒 **Privacy-First, Secure** - **Local Processing** - Your audio files never leave your computer - **Offline Capable** - Works without internet connection - **No Registration** - Install and use immediately - **Completely Free** - All features available at no cost ## ✨ Core Features ### 🎼 **Intelligent Music Analysis** ``` 🎵 BPM Detection: 60-200 BPM range with high precision 🎹 Key Analysis: All 24 major/minor keys automatically detected 📊 Audio Features: Energy, danceability, and happiness metrics 🔄 Relative Keys: Automatic calculation of related keys ``` ### 💾 **Smart Data Management** - **History Tracking** - Automatically saves analysis results - **One-Click Copy** - Export results to other applications - **Batch Processing** - Analyze multiple files in sequence - **Data Export** - Save results for future reference ## 🎯 Perfect For ### 👨‍🎤 **DJs & Mix Engineers** > "No more manual beat counting! The BPM detection is incredibly accurate, and key analysis helps me find perfect transition tracks instantly." ### 🎹 **Music Producers** > "The key analysis feature is a game-changer for my workflow. Harmonic mixing efficiency increased by 300%. Highly recommended!" ### 🎓 **Music Educators** > "Excellent teaching tool! Students can visually understand music theory concepts, making lessons more engaging and effective." ### 🎧 **Music Enthusiasts** > "Perfect for organizing my music library. Sorting by BPM and key makes finding the right track so much easier!" ## 🚀 Simple to Use, Powerful Results 1. **📂 Upload File** - Drag & drop or click to select audio files 2. **⏱️ Instant Analysis** - Professional-grade analysis in seconds 3. **📊 View Results** - BPM, key, and audio characteristics displayed clearly 4. **💾 Save & Export** - History automatically saved, results easily copied ## 🏆 User Reviews ⭐⭐⭐⭐⭐ **"Essential DJ Tool!"** > "As a professional DJ, this extension saves me hours of preparation time. BPM detection is spot-on!" ⭐⭐⭐⭐⭐ **"Producer's Dream"** > "Key analysis feature is phenomenal. My composition workflow is now twice as fast!" ⭐⭐⭐⭐⭐ **"Simple & Powerful"** > "Clean interface, robust features, and best of all - completely free!" ## 🔧 Technical Excellence - **Advanced Algorithms** - Powered by professional audio analysis engines - **Real-Time Processing** - Optimized for speed and accuracy - **Cross-Platform** - Works on Windows, Mac, and Linux - **Lightweight** - Minimal system resource usage ## 🌟 Key Benefits ### ✅ **For DJs** - Quick BPM matching for seamless mixing - Key compatibility checking for harmonic mixing - Large file support (up to 50MB) - Offline analysis - no internet required ### ✅ **For Producers** - Instant key detection for chord progressions - Audio characteristic analysis for mixing decisions - Batch processing for large libraries - Export results to your DAW ### ✅ **For Educators** - Visual music theory demonstrations - Student-friendly interface - No setup required - works immediately - Supports educational file formats ### ✅ **For Everyone** - Completely free - no hidden costs - Privacy-protected - all processing done locally - User-friendly - no technical knowledge required - Continuous updates and improvements ## 🎼 Supported Audio Formats - **MP3** - Most common music format - **WAV** - High-quality uncompressed audio - **FLAC** - Lossless compression format - **OGG** - Open-source audio format - **M4A** - Apple audio format ## 🔒 Privacy & Security - **Zero Data Collection** - We don't collect or store your audio files - **Local Processing** - All analysis happens on your computer - **Secure by Design** - No external servers or cloud processing - **GDPR Compliant** - Respects your privacy rights ## 📈 Performance Stats - **Analysis Speed** - Average 3-5 seconds per song - **Accuracy Rate** - >99% for BPM detection, >95% for key detection - **File Size Support** - Up to 50MB per file - **Memory Usage** - <50MB during analysis ## 🌟 Install Now & Transform Your Music Workflow! **Whether you're a professional musician or music lover, Key & BPM Finder will make your music work more efficient and professional!** --- ### 🔗 Discover More Music Tools Visit [Song Creator](https://songcreator.io) for AI-powered music creation tools ### 📧 Support & Feedback Questions? We're here to help! Contact us anytime. **Install now and experience professional audio analysis at your fingertips!** 🎵✨ --- ## Installation Instructions 1. Click "Add to Chrome" 2. Click the extension icon in your toolbar 3. Upload an audio file to start analyzing 4. View professional results instantly! ## System Requirements - Chrome browser (version 88+) - 2GB RAM minimum - 100MB free disk space - No additional software required