E-VOA is a tourist visa for short trips to Indonesia.
It is processed online in advance: you pay for the visa remotely and receive it before your flight.

Upon arrival in Indonesia, there is no need to process or pay for anything; simply show the ready visa to an officer or pass through the automatic gates (if you have a biometric passport).

The visa is valid for 30 days and can be extended once for another 30 days.
The total period of stay is up to 60 days. The visa is canceled upon departure from the country.

Processing time is 1 business day.