For alternative NBT libraries in Java, please see ViaNBT (derived from an earlier version of OpenNBT) or CloudburstMC's NBT implementation (what MCProtocolLib now uses). Both have active maintenance as of the time of this repository's archival.
OpenNBT is a library for reading and writing NBT files and stringified NBT, with some extra custom tags added to allow the storage of more data types.
OpenNBT uses Maven to manage dependencies. Simply run 'mvn clean install' in the source's directory.
Please join us at https://discord.gg/geysermc under #mcprotocollib for discussion and support for this project.
OpenNBT is licensed under the MIT license.