Ever spent an hour on YouTube digging for the right beat, found it, and then lost the file somewhere in Downloads? Kyoku grew out of exactly that. It's a cross-platform that pulls songs and beats off YouTube and keeps them where you can find them again
Paste a link, get a track
Drop in a video, or a whole playlist, from YouTube or YouTube Music. Pick MP3, M4A, Opus, FLAC or WAV and watch the progress bar do its thing. Each track lands in your library with its title, artists and cover. If a beat's title says "140 BPM" or "F#m", Kyoku writes that down too
A library that stays tidy
Already have a music folder? Point Kyoku at it, and at as many others as you like. Unplug a drive and its tracks are marked missing, not forgotten. Search by title or artist, filter by genre, or sort by BPM and key when you need a beat that fits. Sort tracks into albums and playlists, tag them however you like, and edit a whole batch at once. Twenty titles ending in "(Official Video)"? One click and it's gone from all of them
For the curious ear
Is that FLAC really lossless? Kyoku measures sample rate, bitrate, loudness and frequency cutoff, and a low cutoff gives away a file that started life as an MP3. Need another format? Convert a copy, or replace the original
No terminal required
Under the hood it's yt-dlp and ffmpeg. Kyoku downloads and verifies both on first run, so you never touch a command line. Tracks open in the player you already use
Kyoku (曲, /kyoh-koo/) is Japanese for a piece of music. /Ikkyoku/ means "one song", and it's never just one
End-to-end