As of 6:30 p.m., 338,308 people had flagged problems with the video platform, Downdetector data shows.
The majority of reported issues involved the YouTube app, accounting for 56% of complaints, according to Downdetector. Website problems made up 18% of reports, while login issues accounted for 15%.
Search activity for phrases related to YouTube being down surged Tuesday evening, according to Google Trends.
Many users quickly turned to X to confirm whether the platform was experiencing an outage (or just to post a gif).
It was not immediately clear what caused the reported issues.
Click here to follow Daily Voice and receive free news updates.