whitelist.json and ops.json generator

Type the player names, one per line. The tool finds each player's UUID and gives you the whitelist.json (or ops.json) to put in the server folder. Useful when the server is off, or when you want to add many players at once.

File Server mode

Player names, one per line

Add to my old file (optional)

Paste your current whitelist.json or ops.json. Players already in it stay, new ones are added.

Online or offline UUIDs

online-mode=true (the normal setting): every Minecraft account has one fixed UUID. The tool looks it up by name through the public playerdb.co service, so only the player names leave your browser.
online-mode=false: the server makes the UUID from the name itself (OfflinePlayer: + the name). The tool does the same calculation here, with no lookup. Spelling matters: Steve and steve get different UUIDs.
A wrong UUID is why a player is "not white-listed" even though the name is in the file. Pick the mode your server.properties really has.

How to use the file

Stop the server (it rewrites the file when it shuts down, and would undo your change).
Put whitelist.json or ops.json in the server folder, next to server.properties, in place of the old one.
For a whitelist, set white-list=true in server.properties, then start the server.

While the server runs you can also use /whitelist add Name and /op Name, and /whitelist reload after editing the file.

Something wrong or missing here? Tell me, requests decide what I add next. More tools: all tools.