UNAFold 3.9 is now available. Binary versions may be downloaded from the ibridge web site. You may find the software by entering "UNAFold" in the SEARCH area, or by going directly to the UNAFold URL at ibridge. You must register on ibridge before you can access license information or download the package. Contact the Office of Technology Commercialization (OTC) at Rensselaer Polytechnic Institute for additional information. Source code is available on request. After approval, source code will be distributed directly by the OTC.

Looking for the OligoArrayAux subpackage to use with OligoArray? It's available here.

UNAFold 3.9 compiles on Linux, FreeBSD, IRIX, Solaris, AIX, Windows, Mac OS X and probably other operating systems. However, only Linux and Windows binaries are currently available for downloading. A binary Mac OS X version could be created for distribution, but it would not be in the expected "click and install" (.dmg) format.

If you are running Linux, download one of the RPM files. For Windows, download the appropriate MSI file. In both cases, 32 bit and 64 bit versions are available. See the table below. For other platforms, or if you want to compile the software yourself, use the source distribution in tar/gz format.

Requirements: Perl 5.6.1 or greater is required both to build and to run UNAFold. In addition, there are several other programs/libraries which extend the functionality of UNAFold if detected:

• glut/OpenGL - for interactive graphics in hybrid-plot
• GD Library - for static graphics in hybrid-plot-ng
• gnuplot - for plots in hybrid2.pl

mfold_util is an optional add-on package with programs to view structures (.ct file input) and various dot plots (.plot or .ct file input). Binaries are available for Linux and Mac OS X. (The Windows installer for UNAFold includes the mfold_util binaries as well, so Windows users need only run a Windows version to get a fully-functional installation of UNAFold and mfold_util.)

Man pages for the programs in UNAFold are available online here.

A note for Windows users: UNAFold, like most Unix software, is command-line oriented — there is no GUI. After you run the installer, you will have to open a command prompt and run UNAFold.pl, hybrid2.pl or one of the other programs. You'll want to refer to the online man pages since the documentation installed with the software probably won't be readable under Windows.