NoFingerPrint

NoFingerprint is a fabric client-side mod that fixes an exploit in Minecraft’s resource pack downloader.

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fabricgame-mechanicsmanagement

Rent Server with this Mod

About this Mod

NoFingerprint — Resource Pack Fingerprinting Patch

NoFingerprint is a fabric client-side mod that fixes an exploit in Minecraft’s resource pack downloader.
This vulnerability allows malicious servers to fingerprint your Minecraft account by forcing all resource pack downloads to occur in a server-controlled folder path.

Why this matters

Some servers discovered they can:

Track players across sessions

Correlate accounts

Build unique device “fingerprints”

Log download identifiers tied to your account

All without your permission.

This creates a silent privacy leak and has already been weaponized on PvP and cracked servers.

Available Versions

NoFingerPrint 1.0.0release

MC 1.21.4fabric

November 18, 2025

How to Install NoFingerPrint on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).

Install Mod

Open the mod browser in the dashboard and search for "NoFingerPrint". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.4

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

NoFingerPrint server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.4). You can switch loaders with one click in the panel.

Is NoFingerPrint compatible with fabric?

NoFingerPrint officially supports fabric for Minecraft 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with NoFingerPrint – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if NoFingerPrint consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.