Many independent Korean artists or smaller labels offer "name your price" options. You can often enter $0 to download high-quality FLAC files for free while still having the option to support the artist later.
If you are looking for specific mainstream hits, some specialized tools and sites can help: kpop flac download free
Some producers and artists offer a "Free Download" link directly on their tracks. Always check the description of K-Pop remixes or original tracks for these official links. How to Get High-Quality K-Pop Lossless Files Many independent Korean artists or smaller labels offer
A curated library of legal, Creative Commons-licensed music. While less focused on mainstream "Idol" K-Pop, it’s a great source for Korean indie and alternative tracks in lossless quality. kpop flac download free