I’ve recently came across this collection of few white-noise audio freely available on the Archive.org’s Community Audio:
→ https://archive.org/details/whitenoiseloops
The collection includes 3 versions (Waterfall, Thunderstorm & Waves) and its loops so can be played (or use) on repeat over and over!
Published that way on Archive.org get the benefits of:
The sounds looks unlicensed and the uploader used a burner email address so doesn’t seems interested to be contacted. So, just my humble opinion but feel free to enjoy and use them in your projects if you find them helpful.
It’s always gonna be better than using some random proprietary “noise” app, who can disappear overnight. Download and own your shit.