Buddhist Era ↔ Gregorian

Read a Baht amount aloud in Thai words (อ่านจำนวนเงินเป็นตัวอักษร) for invoices and cheques.

Convert between ISO, Unix timestamps, UTC, and local time.

Create a Thai PromptPay QR from a phone number or national/tax ID, with an optional amount.

Check a 13-digit Thai national ID (เลขบัตรประชาชน) / personal tax ID and decode it.