HDPsyChart 7.0 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 actual developer of the software is Hands Down Software.
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. HDPsyChart.exe is the common file name to indicate this program's installer. The program lies within Multimedia Tools, more precisely Editors & Converters. The most popular version of the tool is 7.0.
From the developer:
The HDPsyChart allows software developers to pass project information along with an unlimited amount of state points and processes to the chart for display.
HDPsyChart produces the highest quality psychrometric charts in the world. The charts are drawn with the un-matched accuracy level of the HDPsyTech engine.
The HDPsyChart also provides a professional state point and process report detailing all of the psychrometric and process values.
You may want to check out more software, such as Heatcraft HDPsyChart, which might be related to HDPsyChart.