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Browsing the internet without an ad-blocker is like walking through a minefield and hoping for the best. You never know what's going to show up, how intrusive it'll be, or whether personalized ads might expose your shopping and search habits to anyone who glances at your screen. Worse still, while ads can be easily blocked on PCs, there's no simple way to get rid of them on Smart TVs or games consoles. That is, unless you have a spare Raspberry Pi laying around.

With around an hour of work, you can turn a Raspberry Pi into something called a Pi-hole. This sits between your device and the internet, filtering out DNS requests to known ad delivery networks and ensuring that most ads never actually load.…