No Telemetry
by kb1000
No Telemetry turns off the usage data collection that Minecraft began sending from version 1.18, a feature players cannot disable in the vanilla game.
What it does
Starting with the snapshot 21w38a, the game sends usage data when a singleplayer world is loaded or when a client connects to a multiplayer server. The mod stops that transmission entirely, so no telemetry leaves the client. It does not add a settings toggle; it removes the sending behavior itself.
The collected data includes a launcher identifier, the player's Xbox user identifier (XUID), a client session identifier that changes on each restart, a world session identifier reused for later events, the game version, the operating system name and version, and the Java runtime version. The author notes that the XUID is sent in plain text and can be traced back to a user, which is why the change matters to privacy-minded players.
The feature has a history: an earlier collection system was removed from the game and later returned. Its return is the reason this mod exists. The project is open source under the Mozilla Public License 2.0, and its source code and issue tracker are public.
Key features
Telemetry disabled
The mod prevents the game from sending usage data on world load and server connection.
Covers all listed fields
Launcher, XUID, session identifiers, game version, operating system and Java runtime data are all blocked.
Single-player and multiplayer
The mod blocks the transmission in both world types, so the same data is not sent from either mode.
Toggle missing from the game
The vanilla game offers no option to turn this collection off, so the mod supplies the change itself.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Privacy-minded players
Players who do not want their Xbox user identifier and system details sent to Mojang can run the mod on their own installation.
Offline or restricted networks
Players on networks that block outgoing connections can keep the game from attempting telemetry transmission.
Who it’s for: Players who want telemetry disabled on their own client, in single-player or multiplayer, without changing anything on the server.
Questions
Does No Telemetry need to be installed on the server?
Which loaders does No Telemetry support?
Does the mod work on snapshots?
More from kb1000
What the author says
Disables the usage data collection, aka telemetry, introduced in Minecraft 1.18 (snapshot 21w38a). The feature previously existed from Minecraft 1.3.1 to 1.12 as Snooper, but was removed in 1.13 (snapshot 18w21a) as it did not comply with European Union's General Data Protection Regulations.
Official listing
- Modrinth page
- modrinth.com/mod/no-telemetry
- Owner
- kb1000
- Published
- 2021-09-24
- Updated on Modrinth
- 2026-01-09
- Facts verified
- 2026-10-15