Minecraft Whitelist Manager
Add player usernames, automatically fetch their UUIDs from Mojang, and generate a properly formatted whitelist.json file.
Add Players
How to Use the Whitelist Manager
The whitelist.json file controls which players are allowed to connect to your Minecraft server when whitelisting is enabled in server.properties. Each entry requires both the player username and their UUID (Universally Unique Identifier). The UUID is what Minecraft actually uses to identify players. If you enter the wrong UUID, the player will not be able to join even if their username is listed.
This tool automates the UUID lookup process. Enter one or more player usernames in the text area, either one per line or comma-separated, then click the fetch button. The tool queries the Mojang API to resolve each username to its official UUID. Successfully resolved players show a green dot and their player avatar. Names that could not be found show a red dot.
Common Use Cases
Private servers and SMP communities that want to restrict access to a known list of players use whitelisting. Instead of adding players one at a time with the /whitelist add command in-game, this tool lets you build the entire list at once from a roster of names. This is especially useful before a server launch when you have a list of accepted players from an application form.
The generated whitelist.json follows the exact format Minecraft expects. Download the file and place it in your server root directory alongside server.properties. Make sure white-list is set to true in your server.properties and restart or run /whitelist reload. The server will then only allow listed players to connect.