JJ Mods + Assassin Tools

60 free DayZ server tools, ready in your browser

A growing collection of free DayZ tools for server owners and map builders. Work with common XML and JSON files, organize map objects, edit loot settings and prepare server configurations without installing desktop software.

Browse all 60 toolsRead the getting started guide

Tools for common DayZ server tasks

XML and economy tools

Validate and organize configuration files, adjust types and spawnable types, and work with server economy data.

Map and object editors

Build or edit map content, work with coordinates and locations, and use map-focused editors for supported DayZ files.

JSON tools and converters

Check JSON files, convert supported formats, split data, and prepare files for use in server workflows.

Free and browser-based

Open the tool you need on desktop or mobile. The collection is being expanded with more tools and improvements.

How to use the DayZ tools

  1. Choose a tool from the collection.
  2. Import or enter the file data the tool supports.
  3. Review the result, then download or copy the output.

Always keep a backup of your original server files before applying changes.

Browse all 60 tools

Search by tool name, task, or category, then open the relevant editor.

Open the DayZ tools collection

Frequently asked questions

Are the JJ Mods DayZ tools free?

Yes. The listed browser-based tools are available free to use. Some tools may support different file types or have tool-specific limitations shown on their page.

Do I need to install software?

No desktop installation is needed for the browser-based collection. Use a current browser and keep a backup of your original files.

Which DayZ files can I work with?

The collection includes tools for supported XML and JSON configuration workflows, map objects, economy settings and related server tasks. Check each tool’s page for its exact supported inputs and outputs.

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