The trope is unkillable for a reason — a witch's cackle does in a second what dialogue needs a paragraph to deliver. These 38 clips chase that beat from several angles: classic high-register evil cackles, spell-casting whispers with consonants pushed forward, the slow bubble of a cauldron at low simmer, and the broom whoosh of takeoff and flyby. There's also a short section of witch laugh variations pitched between human and creature, plus a few witch house music-style sub-rumbles for darker ambient work.
Halloween edits and horror shorts lean on the cackle takes because they read instantly without needing setup. Twitch alert sounds free of attribution requirements pull from the shorter spell stings — three or four seconds, dry, drop-in ready over a follower notification. A fantasy game scene asks for the cauldron loop sitting low under foley. Grab any clip free with no signup or licence chase.