Minecraft プレイヤーのUUIDを調べる方法
JavaまたはBedrock版プレイヤーのUUID、XUID、Floodgate UUID、名前履歴、スキンを取得するステップバイステップガイド。
プレイヤーを検索試す： Notch · jeb_ · Technoblade · Dream · Grian
その他： スキンダウンロード · マントギャラリー · API · JSONジェネレーター · キャッシュ済みプレイヤー · サーバーステータス
ガイドの特徴
Minecraft UUIDとは？
UUID = Universally Unique Identifier — 変更されない32桁の16進文字列。
Every Java Edition player has a UUID assigned by Mojang. It looks like 853c80ef3e3740fdaa867b06307a3d4f (no hyphens) or 853c80ef-3e37-40fd-aa86-7b06307a3d4f (with hyphens).
Why it matters: Usernames can change. UUIDs cannot. Servers use UUIDs for banned-players.json, whitelist.json, and ops.json so bans and whitelists stay correct even when a player renames.
853c80ef3e3740fdaa867b06307a3d4f (32 hex chars, no hyphens) or 853c80ef-3e37-40fd-aa86-7b06307a3d4f (with hyphens). Both work.XUID（Bedrock）とは？
XUID is the unique ID for Bedrock Edition players — Xbox, mobile, Windows 10, Nintendo Switch. It's a long decimal number (e.g. 2535412345678901).
Floodgate UUID: For GeyserMC cross-play servers, Bedrock players get a special Floodgate UUID that starts with 00000000-0000-0000. Our lookup returns both XUID and Floodgate UUID for Bedrock players.
ステップバイステップ：UUIDを調べる
4つの簡単なステップ。アカウント不要、APIキー不要、制限なし。
Notch, Technoblade), Bedrock gamertag, or an existing UUID to reverse-lookup. banned-players.json, whitelist.json, or ops.json. For Bedrock: use our JSON List Wizard to generate permissions.json, allowlist.json, banned-players-bedrock.json. GET https://vrc.lol/api?username=Notch returns JSON with the UUID.- Always use UUID for bans — Never ban by username. If a player renames, a username-based ban won't work.
- Java vs Bedrock — Java uses UUID; Bedrock uses XUID. They're different. Our lookup returns both when available.
- GeyserMC cross-play — Use the Floodgate UUID for Bedrock players joining Java servers via GeyserMC.
- Banning by username — Bans won't persist if the player renames. Always use UUID.
- Mixing Java and Bedrock IDs — UUID for Java servers, XUID for Bedrock. Don't use them interchangeably.
- Wrong file format — Java uses
banned-players.json; Bedrock usesbanned-players-bedrock.json. Different structure.
使用例
Minecraft UUIDでできること：
- Ban a player — Add UUID to
banned-players.json. The ban persists even if they change their username. - Whitelist — Add UUID to
whitelist.jsonso only approved players can join. - Ops — Add UUID to
ops.jsonto grant operator permissions. - Plugins & mods — Many plugins need UUID to identify players (economy, permissions, etc.).
- Discord bots — Link Discord accounts to Minecraft via UUID.
- Leaderboards — Store UUID instead of username so name changes don't break stats.
JSONリスト & Bedrockサーバー
Our JSON List Wizard builds server config files from lookups. No manual editing.
Java Edition
Export to banned-players.json, whitelist.json, or ops.json. One click adds a player with correct UUID format.
Example banned-players.json entry: { "uuid": "853c80ef3e3740fdaa867b06307a3d4f", "name": "jeb_", "source": "Server", "expires": "forever", "reason": "Banned" }
Example whitelist.json entry: { "uuid": "853c80ef3e3740fdaa867b06307a3d4f", "name": "jeb_" }
Where files go: Place in your server's root folder (same level as server.properties). Restart the server or use /whitelist reload / /banlist to apply.
Bedrock Edition
Generate permissions.json (operator, member, visitor), allowlist.json, and banned-players-bedrock.json. Enter Xbox gamertags — we fetch XUIDs automatically. Add Floodgate UUID for GeyserMC cross-play.
Bedrock Dedicated Server用のJSONファイルを無料で生成できるサイトは他にありません。
よくある質問
Minecraft UUIDとは何ですか？
A UUID (Universally Unique Identifier) is a 32-character hex string that uniquely identifies a Java Edition player. It never changes, even if the player changes their username.
Bedrock版のXUIDとは？
XUID is the unique ID for Bedrock Edition players (Xbox, mobile, Windows 10). Our tool returns it in both decimal and hexadecimal formats.
Floodgate UUIDとは？
A Floodgate UUID is used by GeyserMC Floodgate to represent Bedrock players on Java servers. It starts with 00000000-0000-0000 and includes the player's XUID. We provide it for cross-play setups.
無料ですか？
はい。プロフィール検索とJSONジェネレーターは完全無料です。登録不要、APIキー不要、制限なし。
banned-players.jsonにプレイヤーを追加するには？
Look up the player at vrc.lol/player, then use the JSON List Wizard to add them with one click. Or copy the UUID and add it manually.
名前を変更するとUUIDは変わりますか？
いいえ。Java版のUUIDは変わりません。サーバーがBANやホワイトリストにUUIDを使う理由です。
名前とUUID、どちらでBANすべき？
Always use UUID. Usernames can change; UUIDs cannot. A ban by username will fail if the player renames. Our JSON List Wizard adds the correct UUID automatically.
プレイヤーが存在しない場合は？
スペルを確認してください。Java版の名前は3〜16文字です。アカウントが無効かBedrock版専用の可能性があります。
UUIDはハイフン付き？なし？
Both work. 853c80ef3e3740fdaa867b06307a3d4f (no hyphens) and 853c80ef-3e37-40fd-aa86-7b06307a3d4f (with hyphens) are valid. Minecraft accepts both.