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UCSF ChimeraX: Contact Us

For inquiries into commercial licensing, please see ChimeraX Commercial Licensing.

We welcome feedback about UCSF ChimeraX:

To ask a question about using ChimeraX, discuss features, or suggest improvements:

Please send e-mail to the ChimeraX user list,
This list is monitored by the ChimeraX developers and other list subscribers, and responses are usually quick and thorough. You can subscribe to the list, or view/search the archive.

To report a problem with ChimeraX:

If possible, please use Help... Report a Bug in the ChimeraX menu. Otherwise (for example, if ChimeraX will not start), send e-mail to, making sure to include any information needed to reproduce the problem: program version, specific data, actions/steps taken, etc. The information will be publicly accessible, so do not include data or descriptions that you wish to remain private.

ChimeraX announcements list:

The ChimeraX announcements list is used by the ChimeraX team to inform users of major new features, new releases, and upcoming events such as workshops.

Although you cannot send messages to the chimerax-announce mailing list, you can subscribe to it.