Yes, you can legally watch Tamil 4K Ultra HD video songs for free, but you usually cannot download them to keep forever. Here are the best official sources:

Legal and ethical notes

Both platforms offer music videos. While their primary focus is audio, many video songs are available in HD/4K if the artist provides it. The free tier is ad-supported.

: This OTT platform offers a dedicated section for movie video songs in 4K with Dolby Audio. Users can find recent hits and remastered classics on Sun NXT .

: The primary hub for Tamil music. Major labels like Sony Music South, Think Music India , and Aditya Music Tamil frequently upload high-budget tracks in 4K.