A cup of coffee's thanks
Keep Tools Ku running
Development isn't easy, and server and bandwidth costs add up. If our free tools have helped you, consider buying us a coffee — every contribution goes directly toward maintaining and improving this site.
Where your support goes
We process everything locally in your browser and never upload your files. That requires reliable hosting, CDN, and ongoing development. Donations are entirely voluntary — our tools will always be free.
Server & CDN costs
Feature development & maintenance
Keeping tools completely free
Thank you for your generous support — every contribution means a lot to us.