Explainimate

Explainimate is a web-based tool for making whiteboard-style explainer videos. Give it a topic or paste your own script, edit the AI script, and a pen draws each scene in sync with the narration. It offers five drawing styles, narration in nine languages and videos up to 5 minutes, exported as MP4 or WebM in 16:9, 9:16 or 1:1.

You get up to 5 scripts a day free once you sign in (3 without an account). Videos from accounts that have never bought credits carry a small watermark. Paid plans start at Starter, $9.90 a month.