About us

For more than 30 years JA-Soft GbR with its COOLSTAR software stands for comfortable and precise calculations of refrigeration and air-conditioning projects. Founded at the end of the 1980s by two fellow students of refrigeration engineering, the JA-Soft company today is a  well-known brand in the business.

Experts develop for experts

This is our great advantage: We are experts in the field of refrigeration and air-conditioning. We have learned our business from scratch. And we know a lot about coding. This combination makes sure that our software is always state of the art. What COOLSTAR users need is very familiar to us from our daily work.