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EarChord vs KATALOG

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 KATALOG
DetailEarChord logo EarChord KATALOG
What it doesChord detection in your browser A library manager for large, owned music collections
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free trial
PricingNot given Free 30-day trial. Support license: $30 one-time payment, no subscription. All basic features are free.
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
  • Four layouts: Play for DJing with AI mixing, Prep for building sets, Studio for comparing versions, Desk for release management
  • DJ Flow automatic mixing with harmonic matching by key and tempo
  • Works with Serato, rekordbox, Traktor, Engine, VirtualDJ, Mixxx and Apple Music in both directions
  • Writes artwork, lyrics, tags, tempo and beatgrids into audio files
  • Find fake bitrates, duplicates and missing files
  • Search in plain English for complex queries across the library
  • Live FX with echo, roll, filter, gate, crush, flanger and sample pads
  • Mini player and menu bar controls
  • Smart crates, hot cues, loops and A/B comparison that holds playhead
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
  • Local-first: nothing uploaded, no cloud, no telemetry, no account needed
  • Files never moved, renamed or re-encoded; your library stays yours
  • Reads existing Music, Serato and rekordbox libraries without altering files
  • Metadata embedded in files travels to any other app or machine
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last check1 +1 (up) since last check
Trust Flow (Majestic)822
Citation Flow (Majestic)2318
Referring domains (Majestic)1113

4 details filled in for both companies.

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