Orra Audio just dropped Orra Key, a free key-finding plugin that actually puts the result to work. Drop it on a loop, press play, and within seconds it names the key, the relative major or minor, and the DJ key code, with a MATCH percentage so you know how much to trust it.
Then comes the fun part: the chords of that key show up as tiles you can click to preview and drag straight into your DAW as MIDI clips, at your session tempo and time signature. There is also a transpose strip covering -6 to +6 semitones, plus a tuning readout against A440 for samples that need a small fix.
Free for Mac and Windows in VST3, AU, and AAX formats, and one free license key covers three computers.
Get it free here: https://www.orraaudio.com/products/orra-key
Spotted via Bedroom Producers Blog