Use a sharp knife: run the tip along the rim to cut through the lid seam, then pry up carefully
Use a kitchen scissors: cut around the lid edge by working the blades into the seam
Use a screwdriver and hammer: tap the screwdriver into the lid seam, then pry to lift the lid
Use a church key/manual can opener alternative: use a sturdy punch tool to puncture and lever the lid off
Use a multitool/utility knife: score the rim repeatedly until the seal breaks, then pry
Use a metal file or rasp: grind through the rim seam until the lid loosens, then lift
Use an abrasive method: grind the rim with coarse sandpaper or a stone until the seal opens, then pry
Use a can with a pull-tab: pull the tab to open without extra tools
Use the “cut-and-pour” method: cut the top off the can around the rim with a knife, then pour carefully
Use a “burn-through” method (only if safe): heat a sharp metal object and melt through the lid edge, then pry