This is QGIS 3.x plugin.
It exports all or selected vector polygons to poly-files used by Osmosis, Osmconvert (and probably other OSM-related tools) for cliping OpenStreetMap data.
About Poly format: http://wiki.openstreetmap.org/wiki/Osmosis/Polygon_Filter_File_Format
This program is licensed under GNU GPL v2 or any later version
Need to fix a bug or add a feature to OSMPoly_export? We provide custom development and support for this software. Contact us to discuss options!