nswtopo is open-source software for creating detailed topographic maps of New South Wales, Victoria and Tasmania. Maps can be made in both vector and raster formats.
Code for nswtopo is available on GitHub.
Make maps of any areas you want using the lastest government topographic data. Add extra layers such as shaded relief, grid lines and your own GPS data.
Messing with software isn't for everyone. If you just need some quick topos for your phone or tablet, nswtopo has you covered.
Then use this site to find the maps you need. Click or tap the maps to purchase them from the App Store or Google Play. Download the maps to your device and you're good to go.
Maps are available for NSW, VIC, TAS, WA and SA at scales of 1:25 000 or 1:50 000 according to area. Each map set is created from official government topographic data for that state.