Mod LabsEarly Access

A production workbench for HOI4 localization.

Mod Labs helps Hearts of Iron IV mod creators turn tedious localization files into a cleaner, safer workflow: compare languages side by side, catch issues early, and export game-ready files without breaking the mod. Request early access to get considered for the next controlled batch before the workspace opens more broadly.

Bring your project files

Mod Labs works with your existing localization files, in a workspace shaped around how HOI4 mods are already built.

Work side by side

Compare source and target text side by side, inspect missing keys, and clean formatting issues before they reach the mod.

Leave with mod-ready output

Export localization files ready to move back into your mod, without adding another layer of manual repair.