Quickstart to get up and running with GeoTools in minutes:
The GeoTools user guide is available online:
Tutorials, module reference and examples illustrating the uses of GeoTools. Updated with build instructions and advanced tutorials and integration instructions.
The user guide is available for download as a zip file.
See the Get Involved page for the Developer’s Guide, issue tracking and how to join the GeoTools community.
For the impatient, please read at least the contributor guidelines before start working on your code contributions to the project.