How long is the Romanian Digital Nomad Visa valid and can it be extended?

As a long-stay visa it functions as your entry document, after which you obtain a residence permit. The digital nomad status is generally granted for one year.

It can then be extended for an additional year by applying through the immigration authority while you are in Romania. This gives a realistic window of around two years of remote living, subject to continuing to meet the conditions.

If you want to stay longer term, you would need to look at how time on this status counts toward other routes, since the digital nomad visa is designed for temporary remote stays rather than permanent settlement on its own.