How to obtain AmberTools17
AmberTools is a free, useful standalone package and a prerequisite for
installing Amber itself.
The AmberTools suite is free of charge, and its components are mostly
released under the GNU General Public License (GPL). A few components are
included that are in the public domain or which have other, open-source,
licenses. The libsander and libpbsa libraries use the LGPL license.
Most users should get the source code by filling out the form below.
(For information about binary distributions, see the
To download version
17 of the AmberTools distribution (about 330 Mb) please fill in the following
form and click the "Download" button. The file size you should get is
359955025, and the
Note: Installation instructions are in Chapter 2 of the
2017 Amber Reference
Manual. More detailed instructions for many machines may be found at
Jason Swails' blog page. We also have
simplified requirements for MacOS, Linux and
How to obtain Amber16
Amber16 facilitates faster simulations (on parallel CPU or GPU hardware)
and is distributed with a separate license and fee structure.
Click here for the
Amber 16 License Agreement (PDF).
Print this form, fill it out, sign and return (with your payment) to the
address given at the bottom of the license agreement. Once your order is
processed, you will receive download information via email. PDF versions of
the Reference Manual are included in the download.
- Academic/non-profit/government: $500 (US dollars).
- Industrial (for-profit): $20,000 for new licensees, $15,000
for licensees of Amber 14.
- Porting and demonstration licenses are available, as are
licenses for computing centers are available: see the
License Agreement for
- Custom payment schedules or subscription-based approaches can be arranged:
please send email to
for more information.)
- People who
licensed Amber 16 after February 1, 2018 are eligible for a free upgrade to
Amber 18. (This is not automatic: if you wish to obtain
the new version, you need fill out and submit a new License Agreement,
indicating that you are eligible for the upgrade.)
Payment for all orders for Amber must received prior to
shipment of the Software. Payment must be via check, money order, or credit
card (Mastercard/Visa/American Express). Make payments to: Regents, University
of California. We are sorry, but purchase orders and wire transfers can no
longer be accepted.
Once payment is received, an email will be sent to the address provided by
the customer on the License Agreement
containing a username and password, along with instructions on how to
download the software.