Chord Library vs ChordProgressions.org
| Chord Library | ChordProgressions.org | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | Yes |
| Reverse chord lookup | Yes | Yes |
| Progression generator | Yes | Yes |
| Voicing explorer | Yes | Yes |
| Supported instruments | guitar, ukulele | guitar, piano |
| Chord chart export | Yes | Yes |
| Chord audio playback | Yes | Yes |
Both are listed in Best Chord Finder Software. On Inferse, ChordProgressions.org scores higher on our published basis.