Free software for maps
Coordinates Converter
A lot of fish in a shoal, in a gigantic scientific ocean.
Truncated power series algebra
Get map grid (raster) information: size, value summaries, frequencies
Reclassify Map Grids (rasters)
Reclassify raster maps
OpenStreetMap tile downloader
Create a variety of visualisations from high-resolution DTM
A simple (but growing) calculator for many electronic laws