If you have a passport from Singapore, you can apply for the ESTA Visa.
The Electronic System for Travel Authorization (ESTA), created by the U.S. government, is an online process. Its purpose is to prescreen residents, Singapore residents included, who wish to enter the United States but who do not have a regular visa. Before the ESTA was created, citizens of Singapore who wanted to visit the United States had to apply for a visa through the U.S. embassy. This step isn't required anymore if you are approved to travel to the United States through the ESTA. Because Singapore is a Visa Waiver Country, it is part of the Visa Waiver Program (VWP). This means that citizens of Singapore who have a Singaporean passport can apply online for the ESTA Visa. If approved, this allows citizens of Singapore to travel to the United States and to stay for up to 90 days for business, tourism, or medical reasons. The application is simple, and the process is efficient. You need only enter the required information and tap "submit." The ESTA Visa will then be sent to the email address you put on the application in about 72 hours.
Singapore, a country with a well-established economic force in the global economy, has strong ties with the United States. It is important to ensure a steady flow of visitors from Singapore to the United States. Singapore was, therefore, included in the VWP. The ESTA simplifies the travel process by allowing travelers who go between Singapore and the United States to do so just by applying online. This benefits both countries' economies.