Node.js script to create GeoJSON file with grid of MGRS zones for EPSG:4326 (WGS 84) coordinate system
It's not finished yet and has some hardcoded values which currently generate MGRS grid for country of Georgia.
Please refer to the source of mgrs.js to modify it for your needs.
You can view example MGRS grid on map at https://mgrs-wgs84.patrykkalinowski.com
To run example on your machine, download the project and run yarn run dev