Key & BPM Lab vs EZAudio

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Key & BPM Lab compared with EZAudio
Detail	Key & BPM Lab	EZAudio
What it does	Free browser-based audio tools for finding and changing song key and BPM	Browser-based audio tools for conversion, editing, enhancement and AI transcription
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 plan: 20 credits per day with 50 bonus credits on registration; Starter: $9/month (1,000 credits/month + 20 daily); Pro: $29/month (5,000 credits/month + 50 daily); Business: $99/month (20,000 credits/month + 100 daily). Pay-as-you-go: 150 credits for $5, 350 for $10, 800 for $20.
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	Audio format conversion to MP3, WAV, FLAC, M4A, OGG Video to MP3 extraction from MP4, MOV, MKV, WebM Audio cutting and trimming Audio compression with bitrate control Audio enhancement for clarity and dynamics AI vocal separation and isolation AI music stem splitting AI transcription with summaries Continue Editing workflow between compatible tools
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	No software installation required; works directly in your browser Mix of browser-based and server-processed tools with clear explanations of what stays local versus uploads Chain results between tools using Continue Editing for multi-step workflows AI tools with transparent credit usage and expiration policies
Community votes	0	0
DR (Domain Rating by Ahrefs)	25 −1 (down) since last check	3 no change since last check
Trust Flow (Majestic)	19	5
Citation Flow (Majestic)	12	27
Referring domains (Majestic)	35	39

5 details filled in for both companies.

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