Good to go if
the term of your stay in Thailand is less
than 30 days. If for any reason you are planning to stay longer than 30 days, please apply for tourist visa with extended duration of stay (one tab down on the left).
, anything else?
Confirm if transit visa is required for any connections.
Check with your airline in case you have connecting flights overseas as part of your journey to Thailand. It may be the case that countries you pass through en route to your destination may require a separate transit visa. Please refer to visa requirements of the specific country.