Game ID & Region Checker

What this checker can and cannot do

This tool validates the format of popular game IDs before you top up: Mobile Legends User ID and Zone ID, Free Fire Player ID, and Genshin Impact UID. A simple typo in an ID is the most common reason a game top-up fails, so a five-second format check can save you a refund ticket.

Everything runs locally in your browser using published format rules; your ID is never sent to any server. Be aware of the limits: without an official publisher API, the result is an indication of format validity and, for Genshin, the server your UID prefix maps to. It is not a lookup of your actual account data or nickname.

How to check your game ID

1. Choose your game from the dropdown.
2. Enter the ID exactly as shown in your game profile. For Mobile Legends, enter both the User ID and the Zone ID shown in brackets.
3. Press Check ID. The tool validates the digit count and pattern instantly.
4. For Genshin Impact, the first digit of your UID also indicates the server region (America, Europe, Asia, or TW/HK/MO), which is shown in the result.

Tips before you top up

• In Mobile Legends your full ID looks like 123456789 (1234): the number in brackets is the Zone ID, and a top-up needs both numbers.
• Genshin UID prefixes: 6 = America, 7 = Europe, 8 = Asia, 9 = TW/HK/MO, and 1-5 = China. Ten-digit UIDs starting with 18 are also America.
• Free Fire Player IDs do not encode a region; pick your region manually in the top-up form and always double-check the nickname preview before paying.

Frequently Asked Questions