Chords in time
Follow every chord change directly on the timeline.
Audio to chords, instantly
Turn any song into chords in seconds.
Upload an audio file. See the chords in time, detect the key and BPM, and follow a lead sheet with chords above the lyrics.
Drop your song here
MP3, WAV, OGG, M4A or FLAC · max 50 MB · 15 min
No account neededNo signup neededNo installationUp to 50 MB
Example result
AmFCGAmFCG
0:000:150:300:451:00
KEYC majorSample value
TEMPO96 BPMDetected speed
TIME SIGNATURE4/4Sample meter
AmWhen the city
Flights are glowing
CWe find our
Gway back home
AmEvery little
Froad we take
CIs another
Gstep to make
AmWhen the city lights
Fare glowing
CWe find our way
Gback home
Sample original lyrics; actual lyrics may finish processing after chords.
Chord analysis complete
Key: C major · 96 BPM · 4/4 · Sample display only. Real results come from your API.
Sample UI · not an analyzed recordingChordPro available · PDF/MIDI planned
KEY—
TEMPO—
METER—
One cell per bar. Click a bar to jump there.
Adding lyrics to your lead sheet…
The chords are already here. The words appear automatically when processing finishes.
No lyrics were detected in this track, so the sheet shows the chords bar by bar.
Chords are detected automatically. Check them by ear.
Everything in one place
From audio to a playable chord chart
A clean workspace built around the music, not a wall of controls.
Key, BPM & meter
Get the musical context of your recording.
Chords above lyrics
Read an optional lead sheet as you practice.
Export ChordPro
Save a structured chord sheet for later use.
Practice tools
Loop, transpose and PDF/MIDI export are on the roadmap.
Three simple steps
Hear it. Understand it. Play it.
Go from your audio to a useful chord chart without installing anything.
Upload a song
Choose a supported audio file, up to 50 MB and 15 minutes.
We detect the chords
Get chord changes, key, tempo and beats. Lyrics can arrive separately.
Follow your music
Read the synced sheet, inspect the timeline and export ChordPro.
Proposed plans · pricing is not final
Start free. Go further when you need to.
Try the results first, then decide how much music you want to work with.
Free preview
No accountGet an instant taste of your song.
$0
- First 60 seconds of chords
- Key and BPM
- No registration required
Free account
Your first complete songs, saved.
$0
- 3 full-song analyses
- Save to your library (planned)
- Access them again later (planned)
Song pack
For occasional covers and practice.
$2.99 / 10 songs
- 10 complete analyses
- Credits never expire (proposed)
- One-time purchase (planned)
Pro
Most flexibleFor regular practice and arranging.
$4.99 / month
- Unlimited songs (planned)
- PDF, MIDI & practice tools (planned)
- ChordPro export
These plans are a proposal and may change. Accounts and checkout are not available yet.
Frequently asked questions
The essentials before analyzing your first song.
Which audio files are supported?
MP3, WAV, OGG, M4A and FLAC, up to 50 MB and 15 minutes.
Will I see the chords before the lyrics?
Yes. Chord analysis can be ready earlier; a separate indicator shows when lyric processing is still running.
Can I export my results?
You can download your chord sheet as a ChordPro (.cho) file or copy it to the clipboard. PDF, MIDI, loop and transposition are planned.
Is it free?
Chord Detector is in early development. Accounts, billing and the 60-second preview limit are not available yet, so analysis is currently free to try. The plans above are a proposal and may change.