EarChord vs BPMKeyFinder

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

EarChord compared with BPMKeyFinder
Detail	EarChord	BPMKeyFinder
What it does	Chord detection in your browser	Not given
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Free
Pricing	Not given	Free to use with no daily analysis quota, account requirement or paid plans.
Key features	Chord progression detection Key identification using Krumhansl-Schmuckler profiles Tempo/BPM detection from onset envelope Interactive timeline of detected chords Roman numeral chord notation Export chord list as text or file Supports MP3, WAV, M4A, AIFF, FLAC and OGG files	Local audio processing with no server uploads BPM, musical key and Camelot code detection Support for MP3, WAV, FLAC, M4A, AAC, OGG and AIFF formats No daily analysis quota or account required Major and minor mode detection Works on desktop and mobile browsers
What makes it different	Runs entirely in browser with no uploads or server processing Completely free with no daily limits or account required Uses transparent signal processing instead of hidden machine learning Shows actual detection results so you can see where it guesses	Professional-grade analysis using Essentia.js trusted by researchers worldwide Completely free with no subscriptions, daily limits or account requirement Works on any device with a browser supporting JavaScript and HTML5
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	10 no change since last check
Trust Flow (Majestic)	8	6
Citation Flow (Majestic)	23	24
Referring domains (Majestic)	11	47

3 details filled in for both companies.