Can I extend a 60-day visa exemption or get an ED visa while in Thailand?

Yes, it is possible to extend your 60-day visa exemption in Thailand or apply for an Ed (Education) visa without leaving the country. You can extend your stay by 30 days at immigration, but to apply for an Ed visa, you need to have at least one month left on your visa validity. Although you can obtain an Ed visa locally, it may cost around 10,000 baht, and some suggest that traveling to another country for the application process might be more beneficial.