Persistent Storage

Store variables between worlds

361 Downloads

fabriclibrarystorageutility

About this Mod

Extremely simple mod allowing the storage of variables between worlds.
Currently only client side, but could support server in the future.

Adding data-blocked:

PersistentStorage.put(String key, Object value)
PersistentStorage.putTag(String tag)

Accessing data-blocked:

PersistentStorage.get(String key) (Returns JSONElement)
PersistentStorage.getTag(String tag) (Returns true if tag has been set)
PersistentStorage.getBoolean(String key) (Returns true if the specified key

Available Versions

Persistent Storage 1.0.2release

MC 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8fabric

September 6, 2025

How to Install Persistent Storage 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 (1.21.8).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8, 1.21.7, 1.21.6 (+21 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Persistent Storage 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 (1.21.8). You can switch loaders with one click in the panel.

Is Persistent Storage compatible with fabric?

Persistent Storage officially supports fabric for Minecraft 1.21.8, 1.21.7, 1.21.6. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Persistent Storage – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Persistent Storage 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.