Go MaxMind DB Writer

This is a Go writer for the MaxMind DB format.

This is still a work in progress and does not support all of the features of the Perl writer. The API is subject to change.

Examples

See the examples folder for examples of how to use this library or our blog post, Enriching MMDB files with your own data using Go.

Copyright and License

This software is Copyright (c) 2020-2026 by MaxMind, Inc.

This is free software, licensed under the Apache License, Version 2.0 or the MIT License, at your option.