K-meleon is distributed as an open source and free software. However, if you wish to express your appreciation for the time and effort put into developing and maintaining the software, as well as support future development, you are welcome to help the official development team or make a donation

You can bring your support to the development of Open Source softwares through your help to the Free Software Foundation.

You can bring your support to the development of WIKIPEDIA, the well-known free content encyclopedia through a Wikipedia donation too.

Thanks for your support anyway, by using and participating to open source softwares !