Chimera/ChimeraX Commercial Licensing

UCSF Chimera and UCSF ChimeraX are each licensed commercially based on a non-exclusive, nontransferable, 3-year license. The two programs are licensed separately. In other words, your company will need to purchase a separate license for each.

Licensing costs are based on the number of users per Company's Site Location:

These non-refundable fees are assessed per entity and do not include a company's affiliates or subsidiaries. Each affiliate or subsidiary must acquire a separate license from UCSF.

There are no free evaluation or trial licenses offered for this software. For-profit entities must execute a License Agreement to gain access.

License Agreements:
If your company is interested in pursuing a License Agreement, please click the applicable link above to download the selected License Agreement, complete the fillable fields and an authorized signature for the entity, and email the partially-executed version to

Important Note: Since the software is provided for a nominal fee compared to similar products on the market, we don’t negotiate changes to the language of the License Agreements.

In addition to the partially-executed License Agreement(s), please provide the following information in your email:

Company Name: 
Company Site Mailing (Street) Address: 
Number of Users: 
Chimera or ChimeraX: 
Primary User Name: 
Primary User Email: 
Accounts Payable Physical Address: 
Accounts Payable email address: 

Payment can be made via bank wire transfer or ACH transfer. Details will be provided in response to your email submission of a partially-executed License Agreement. Confirmation of payment (e.g., a bank confirmation) is required before software access will be granted.

Revised 21-Jan-2021