Mapcrafter is a high performance Minecraft map renderer written in C++. It renders Minecraft worlds to a bunch of images which are viewable like a Google Map in any webbrowser using Leaflet.js.
It runs on Linux and other Unix-like operating systems like Mac OS and has also an experimental support for Windows (see Windows). The renderer works with the Anvil world format and the Minecraft 1.6 resource packs.
Mapcrafter is free software and available under the GPL license. You can access the latest source code of Mapcrafter on GitHub: https://github.com/mapcrafter/mapcrafter
There are a few example maps of the renderer on the GitHub Wiki. Please feel free to add your own map to this list.
If you find bugs or problems when using Mapcrafter or if you have ideas for new features, then please feel free to add an issue to the GitHub issue tracker.
You can contact me in IRC (#mapcrafter on Freenode). Use the webclient if you are new to IRC. I will be there most of the time, but please bear in mind that I can’t be available all the time. If I’m not there, wait some time or try another time of the day.