TilemapExtended
Provides you with everything needed to quickstart your projects utilizing Unity Tilemaps
Flexible
TilemapExtended is easy to integrate and doesn't force a workflow on you unlike bigger frameworks. It's just a tool to support you with specific time consuming tasks.
Modular
Scripts are structured to be as independent as possible. Only interested in grid methods without saving data? Just use the static GridUtility classes and implement your own data store. Built to be extendable.
Easy to use
Auto-detect Grids and Tilemaps. TilemapExtended looks through different Tilemap layers and detects the correct grid type automatically - different grids, same methods.