Recently I was searching for a Kanban board to manage my daily tasks inside the company. As the company has a focus on security, I am not allowed to use online tools like trello or so and to be honest, I really wouldn't want to give that data away.
After some research I finally found my tool of choice: An Angular based local webpage called my-personal-kanban that runs in your browser and all of it's data is completely locally handled. You have the option to sync your board secuerly to their cloud, which I am not using of course. Additionaly, this software is completely open source and you can contribute on github, if you want to. Awesome piece of software!
I'm using this tool for several weeks now and I'm feeling like I'm not losing trace of some of the small tasks I usually didn't write down.