Ubuntu Cleaner is an open source software that removes old kernel files and unused packages on your computer with the remnants of the browser, thumbnails, and applications.
Warning: When you use this kind of software, you should be careful if you do not want to delete files on your computer.
Ubuntu Cleaner Installation (Ubuntu / Linux Mint)
If you want to install Ubuntu Cleaner from deb package, you can download it from here.
If you want to install it as PPA, use the following commands.
sudo add-apt-repository ppa:gerardpuig/ppa
sudo apt update
sudo apt install ubuntu-cleaner
You can use the following command to remove Ubuntu Cleaner.
sudo apt remove ubuntu-cleaner && sudo apt autoremove