Credits
Hitbox Fixer is written and maintained by @Garey27.
This is a third-party project, not a ReHLDS organization one. It is documented here because it is widely deployed alongside ReHLDS and because it is the actively maintained replacement for the organization's own deprecated hitboxtracker. Support requests belong in its own issue tracker, not in the ReHLDS one.
Project links
License
Hitbox Fixer is distributed under the GNU General Public License v3.0.
Valve, Half-Life, Counter-Strike, and related names and assets belong to their respective owners.
How to help
Run it on your server and report hit registration problems through the issue tracker, including your engine (ReHLDS version or HLDS build), the mod, and a demo or reproduction steps if you can. The author notes that support for additional mods can be requested there. Pull requests are also welcome.