How to get chemfp

chemfp has two development tracks. The 1.x track is available for no cost under the MIT license, and the 3.x track is available for a fee.

Version 3.3

Chemfp version 3.3 is the most recent version of the 3.x line. It is available for a fee.

See the chemfp 3.3 documentation to learn more about this version of chemfp.

Evaluation copy

You can request a no-cost evaluation copy for Linux, along with a time-limited license key by sending an email to sales@dalkescientific.com.

Purchase a copy

If you purchase a copy of chemfp then you will receive the source code under a permanent license. Several license types are available:

Other licensing options are also possible.

Version 1.5

Chemfp version 1.5 is the most recent version of the 1.x line. It is available at no cost under the MIT license.

Download chemfp 1.5

It can also be installed from PyPI using pip install chemfp.

The 1.x track is in maintence mode. There will be new releases to track changes in the supported toolkits, as well as some API improvements.

See the chemfp 1.5 documentation to learn more about this version of chemfp.

Some of the many improvements in the chemfp 3.x line which are not available in chemfp 1.5 are: the FPB format for fast loading, new APIs to make it easier to do web development, support for more than 4GB of fingerprint data, even faster search performance, Tversky search, and support for both Python 2.7 and Python 3.5+.