Enter two gamertags and this tool looks up both public Xbox Live profiles at once, then lines up their Gamerscore, Account Tier, Reputation, and current Online Status side by side. Any field a profile doesn't expose is shown as unavailable — never guessed or estimated. Gamerscore itself has become enough of a milestone that Microsoft now shows tiered badges for it directly on console and in player profiles (Xbox Wire), which is part of why comparing it head-to-head is worth doing. The tool reads the same public profile information and adds no scoring system of its own, so the numbers are Xbox's numbers. Keep in mind that achievements and Gamerscore can take up to 72 hours to sync, per Xbox Support, so a very recent unlock may not appear yet.

Opening two separate profile pages and mentally lining up the numbers is slow, and it's easy to lose track of which Gamerscore, tier, or reputation belonged to which player. When you compare Xbox Gamertags with this tool, both lookups run at the same time and land in one shared view, so the higher Gamerscore, the matching Account Tier, and the current Online Status are all visible at a glance instead of split across two browser tabs. This is especially handy for settling a friendly rivalry, checking who's ahead going into a new season of achievement hunting, or simply seeing how a friend's account stacks up against your own before a squad night. If you ever want to change a gamertag before running a fresh comparison, Xbox Support's official guide covers the process, including the naming rules and the fee for changes after your first one: how to change your Xbox gamertag.