Casa XPS is a software package designed for the analysis of X-Ray Photoelectron Spectroscopy (XPS) data. XPS, also known as Electron Spectroscopy for Chemical Analysis (ESCA), is a surface-sensitive quantitative spectroscopic technique that measures the elemental composition of the surface of a material. Casa XPS is widely used in various research fields, including materials science, chemistry, and physics, for its ability to accurately analyze and interpret XPS data.

CasaXPS is a highly specialized tool for X-ray Photoelectron Spectroscopy (XPS) data analysis, and while it is not "free" in a general sense, there are legitimate ways to access its full functionality for research and academic purposes. 1. Check for Academic Site Licenses

CasaXPS offers a fully functional demo version. While it limits your ability to save certain files or export data in specific formats long-term, it allows you to learn the interface and process data for short-term projects. You can download the latest version directly from the official CasaXPS website . 2. University and Institutional Site Licenses

Find the for your specific university. Guide you through setting up the demo version .

your work, export fitted curves, or copy-paste data to other platforms (like Excel or Origin). 2. Licensing Costs (One-time Fee)