Thank you for your interest in FeynCalc.
FeynCalc is free and noncommercial software.
The development is done by volunteers working on FeynCalc in their spare time.
Any funds you're able to donate are greatly appreciated.
Your support will help
keeping this web site on-line
allowing the developers to take time off to concentrate on FeynCalc development
allowing the developers to take time off to write FeynCalc documentation
allowing the developers to attend conferences and/or inform about FeynCalc by other means
allowing the developers to test FeynCalc on more hardware and software configurations
By clicking on the button below you will be taken to the secure payment service of PayPal.
We suggest an amount of 25 Euros, but any amount is welcome and appreciated.