Calculate refrigeration and air-conditioning.

With COOLSTAR by JA-Soft you'll get well-founded calculations for your refrigeration systems quickly and precisely. The software was developed by refrigeration experts - for refrigeration experts. And it is regularly revised and updated. More than 1,500 installations worldwide speak for themselves.


Programme modules

Use COOLSTAR to calculate complete piping nets – quite intuitively and individually. All modules at a glance.



Almost all calculations are based on the thermodynamic equations of state for all  common refrigerants.


Demo version

Are you interested? Ask for the latest COOLSTAR demo version for free!


The benefits at a glance

COOLSTAR is a very flexible programme. With the module master data you are able to adapt the calculations of COOLSTAR to your situation. You may - e.g. in the calculation of a piping net - put in your preferred manufacturers, so that the results of calculation only include these favourite components. Data of piping may be adapted to your requirements, so that only the diameters you use every day will be proposed.

COOLSTAR is as simple as efficient. You will be a perfect user within a very short time. COOLSTAR is commonsense, user-friendly and interactive. COOLSTAR allows calculations in different units. In other words: the programme is flexible to use.

COOLSTAR offers automatic data transfer from previous calculations. New entries are avoided in most cases.

With only one click you can open the product documentation of the component. So you get the necessary information for your application.

COOLSTAR calculations can be output as PDF, XLS or WMF file.

Each COOLSTAR installation comprises four languages: German, English, French and Dutch.

COOLSTAR allows alteration and adaptation of the included component databases. This means: your programme will always be up to date.

Satisfied customers worldwide