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Core Keeper
Free tools

Core Keeper Tools

Here you'll find all the free Core Keeper tools we've built so far — from the World Map Viewer for your explored world to the server configuration generator for your ServerConfig.json.

World Map Viewer

Upload your Core Keeper world file and explore the entire map with biomes, pan, and zoom — all in your browser, with no upload to a server.

Built by Justin Schuessler

Server Configuration Generator

Describe your ServerConfig.json settings to the ZapX AI Agent in your own words, or set each option manually—with a live preview for your rented Core Keeper server.

Built by Florian Galz

Savegame Editor

Upload your Core Keeper character file to view skills, talents, inventory, and character details, then edit it directly. Adjust items, health, avatar appearance (including gender), and discoveries, and export the file. All in your browser, with no upload to a server.

Built by Justin Schuessler

Seed Generator

Enter a Core Keeper world seed and instantly preview the terrain and biomes in authentic game colors—without owning or exploring the world.

Built by Justin Schuessler

FAQ

Frequently asked questions

Brief answers about our free tools.

Two free tools: the World Map Viewer lets you upload your world file and view, pan and zoom around the full explored map and its biomes; the server configuration generator creates your ServerConfig.json.

No — Core Keeper completely ignores password values in ServerConfig.json. Password, port, and IP binding are set exclusively through startup parameters, not the configuration file.

No. The World Map Viewer reads and renders the file entirely in your browser — no server request transfers or stores it.

Core Keeper stores each world in its own folder with multiple files, including one or more "*.mapparts.gzip" files — upload those files to the World Map Viewer.

Yes, we're continually expanding the collection. If there's a Core Keeper tool you'd like to see, let us know through support.

Yes. You can place custom markers with notes and icons directly on the map, for example to mark bases, resources, or danger zones. They're stored locally in your browser. You can also use the download button to save the entire map as a high-resolution PNG, including all enabled overlays.

No. These platforms do not allow file access to world data — the World Map Viewer works only with the Steam version (Windows and Linux/Steam Deck).

Any more questions?

Contact Support