Free browser-based audio tools for finding and changing song key and BPM
Free Mac screen recorder with built-in editor and AI-assisted editing
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
Not given
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
Free version with full recording and editing, small badge on exports. One Mac license: $29 one-time. Three Macs license: $49 one-time. Next batch: $39 for One Mac, $59 for Three Macs.
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
Record full display, window or region with outline
Separate audio tracks for screen, camera, microphone, system audio and voiceover
Cut and split on timeline, remove pauses automatically
Zooms with depth choice and eased motion
Push-to-talk voiceover re-recording
Captions transcribed locally on Mac
AI editing through Claude, ChatGPT, Codex or Cursor via MCP
Export as MP4 in five aspect ratios, GIF, audio-only or captions
Non-destructive edits with raw capture never overwritten
Camera in multiple shapes with blur and resize after recording
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
12.1 MB installed, native Swift app with no browser engine
One-time $29 lifetime license instead of monthly subscription
Recordings and projects stay local on your Mac, never uploaded
AI can edit projects through MCP server integration
Key & BPM Lab
Screen Records