A person or animal that cackles; someone who laughs loudly or shrilly.
From cackle + -er (agent noun suffix). The -er suffix creates a noun for someone who performs the action of the verb.
A cackler is anyone with a distinctive loud laugh—it's a vivid descriptive word that tells you exactly what someone sounds like when they find something hilarious.
Complete word intelligence in one call. Free tier — 50 lookups/day.