blockerDNS blocks ads and trackers at the DNS level, the benefit being that you don't need to install any apps or extensions. But for cases where you may not want to, or be allowed to, change your DNS settings, the Chrome extension offers the same level of blocking along with the same lack of logging or data collection.
You can install the latest published version from the Chrome Web Store.
If you want to modify the code or play around with it, you can sideload it into Chrome. First download and extract the ZIP file or clone the repository.
git clone https://github.com/tambeb/blockerdns-extension-chrome.git
Then go to Chrome's extension settings by typing chrome://extensions in the address bar, enable Developer mode, choose Load unpacked and go to the extracted or cloned folder.