How to Apply for a UK ETA

Applicants can complete the process online by providing passport details, personal information, contact details, and travel plans. A recent photograph may also be required. For How to Apply for a UK ETA, complete the digital form carefully, pay the applicable fee, and submit it for review. Most decisions are sent electronically, so check your email and ensure your passport details match exactly.

https://united-kingdom-visa.com/apply-for-united-kingdom-eta/