* [NextTrace v1.7.0](https://github.com/nxtrace/NTrace-core) – Lightweight visual routing tool developed in Golang.

* [MaxMind DB Reader for Go v2.3.0](https://github.com/oschwald/maxminddb-golang) – Go library for reading MaxMind DB format geolocation databases with performance-optimized features.

* [GeoIP CLI 202605191104](https://github.com/Loyalsoldier/geoip) – CLI tool for customizing and releasing various GeoIP file formats including V2Ray dat, MaxMind mmdb, and multiple ruleset files.

* [GeoIP for V2Ray 202605120112](https://github.com/v2fly/geoip) – Monthly releases of GeoIP files and a CLI tool for customizing GeoIP files used in routing.

* [Merged IP Database 2026.05.26](https://github.com/NetworkCats/Merged-IP-Data) – Tool that merges multiple IP geolocation databases into a single MMDB using priority-based field-level merging.