Typing.com gets the job done. If your kid is hunched over a keyboard typing a two-sentence paragraph with one index finger, this site builds muscle memory fast. It gamifies the repetition enough to keep elementary kids moving without turning the whole thing into an arcade game.

That said, the business model introduces standard web friction. Free accounts run sidebar ads, and while there's a paid tier (PLUS) to strip them out, the site's privacy documentation leaves open questions about how user data gets handled. For a free skill builder, it's effective, but you'll want to use an ad-blocker or keep an eye on what's running in the margins.