Very similar interface to Origin; specifically designed for data analysis and publication-quality 2D plots.
The easiest and fastest way to get a product key is the official originlab product key free
If you are a student, you might be eligible for a version of OriginPro. Very similar interface to Origin; specifically designed for
It is limited to 12 windows per project, but otherwise contains almost all the power of the Pro version. Very similar interface to Origin
Cracked versions are notoriously unstable and can cause you to lose weeks of research data.
A powerful KDE-based alternative for interactive graphing and analysis.
How to Get OriginLab Legally: Trials, Student Deals, and Free Options