If the country of origin of your passport is mentioned in one of the three columns Tourist Visa Exemption Scheme you can depending on your history of living or visiting Thailand get the 30 day Visa Exempt Entry.
*************************************************************
%20on%20Arrival/VOA.pdf?fbclid=IwAR3kf0DO56pjhnPXGnXmV6w-udVcnJ4vHBWn9vljtDHweaA_k8GCdsEqUOQ