Free MP3 and WAV analyzer that detects musical key, BPM, and Camelot code in your browser
Instant Guitar Chords for Any Song
Stage
Not given
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Not given
Free: access all catalog songs, add 5 new songs per month, edit charts, songs up to 12 minutes. Song packs: 10 songs ₹49/$2.99, 30 songs ₹99/$5.99, 100 songs ₹249/$12.99 (one-time purchase). FlexChords Pro (coming soon): ₹99/month or ₹799/year ($3.99/month or $29.99/year), includes unlimited songs u
Key features
Analyze MP3 and WAV files up to 40 MB and 10 minutes long
Display multiple key candidates with confidence scores
Tap tempo counter for manual BPM verification
Half and Double tempo options to verify different pulse counts
BPM to milliseconds calculator for delay time conversion
Camelot wheel tool for comparing related keys
Browser-based processing with no file upload required
Automatic chord detection from YouTube videos and audio files
Real-time synced chord playback
Key and tempo detection
Instant chord transposition
Chart editing and customization
Slow down playback without pitch change (Pro)
Capo suggestions and simplified chords (Pro)
PDF export of chord sheets (Pro)
What makes it different
No file upload needed; all analysis happens in your browser for privacy
Shows multiple candidate results instead of forcing a single answer
Free to use with no signup or account requirements
Includes interactive practice tools with synthetic teaching examples
Samples long files from beginning, middle, and end for complete analysis
91% chord accuracy on unseen songs using proprietary model
All catalog songs free to play and transpose
User-editable charts saved to account
Crowdsourced chord library that improves for all users
Find Key & BPM
FlexChords