Free browser-based audio tools for finding and changing song key and BPM
Compact music player for Windows 11 with gapless FLAC playback and synchronized lyrics
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free plan includes Key & BPM Finder and Changer, Audio Cutter and Joiner, BPM Tapper and Metronome, Voice Recorder, and local processing tools with files saved for 6 hours. Plus plan: $9.90/month with 1,000 credits per month and files saved for 7 days. Pro plan: $19.90/month with 2,500 credits per m
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Key features
Detect song tempo, musical key, scale and Camelot code
Change key and BPM independently and export as WAV
Cut and join audio segments
Record voice and tap beat timing
Practice with online metronome
Remove vocals from songs
Split songs into instrument stems
Enhance audio quality with AI
Convert audio to editable MIDI
Gapless playback for consecutive tracks in the same format
Synchronized lyrics from .lrc files and embedded lyrics
Taskbar controls and mini-player
Multiple library views: playlists, artists, albums, folders in grid or list layouts
Drag-and-drop queue reordering
WASAPI Exclusive output as add-on
Discord activity integration as add-on
Queue persistence across restarts
What makes it different
Process audio locally in browser without uploading to servers
No file storage or account required for free tools
All free tools with privacy-first design
Direct export from browser without server processing
Local-first design keeps your music library on your PC
Compact interface that doesn't take over your screen
Music continues playing after closing the window
Precise seek bar with format information read from the file
Add-ons unlock optional features without affecting core functionality
Key & BPM Lab