I use PureMaps to record coordinates for the objects to be placed in OpenStreetMap later using bookmark feature. I use values shown in "Lantitude:" and "Longitude:" labels to transfer it to the maps using JOSM editor.

Sadly, bookmark coordinates are shown using no more than 4 digits after decimal point.

Result is this kind of "discrete" grid of trees, while it should have been more like spiral:

https://www.openstreetmap.org/way/1273260190#map=18/55.94656/23.34301

I guess adding one decimal point more would increase precision enough to be useful in OSM micro-mapping.