Jmol 14.30 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among the software users are 14.3, 14.2 and 14.0.
The software lies within Education Tools, more precisely Science Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free program is a product of An OpenScience project.
From the developer:
Jmol is a Java based application and an applet for displaying 3D chemical information. Features include reading a variety of file types, including PyMOL session files and output from quantum chemistry programs, file writing (including JPG, PNG, PNGJ (PNG ZIP), and ZIP formats), and animation of multi-frame files and computed normal modes from quantum programs, surfaces, translucency and more.
You may want to check out more software, such as Wi-FileTransfer, which might be related to Jmol.