> For the complete documentation index, see [llms.txt](https://g3m.gitbook.io/g3mwiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://g3m.gitbook.io/g3mwiki/main/g3mlib/g3mlib.md).

# G3MLib

G3MLib is a .NET library for reading and editing GameMaker DATA, compiling and decompiling GML, exporting resources, creating and applying patches, merging changes, and generating difference reports.

The package version is **1.0.1** and its target framework is **.NET 10**. It has no application window or game launcher. An application using the library supplies its own interface, paths, progress display, and script interaction.

| Task                                      | Guide                                                                      |
| ----------------------------------------- | -------------------------------------------------------------------------- |
| Add the package and read a file           | [Getting started](/g3mwiki/main/g3mlib/getting-started.md)                 |
| Edit the DATA model and save it           | [DATA files](/g3mwiki/main/g3mlib/apis-and-examples/data-files.md)         |
| Create, validate, or apply a patch        | [Patch API](/g3mwiki/main/g3mlib/apis-and-examples/patches.md)             |
| Combine patches or compare resources      | [Merge and diff](/g3mwiki/main/g3mlib/apis-and-examples/merge-and-diff.md) |
| Export/import resource files              | [Resource API](/g3mwiki/main/g3mlib/apis-and-examples/resources.md)        |
| Decompile or compile game code            | [GML editing](/g3mwiki/main/g3mlib/apis-and-examples/gml.md)               |
| Work with a serialized resource project   | [Projects and scripts](/g3mwiki/main/g3mlib/apis-and-examples/projects.md) |
| Connect logs, progress, cache, and xdelta | [Host integration](/g3mwiki/main/g3mlib/apis-and-examples/hosting.md)      |
| Check common limitations                  | [FAQ](/g3mwiki/main/g3mlib/apis-and-examples/faq.md)                       |

Source and license notices are available in [the repository](https://github.com/y114git/G3MLib). G3MLib is GPL-3.0-only and includes code with GPL-3.0 and MPL-2.0 notices. Review the package's license files when distributing an application that includes it.


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