There's a WASM port of Vim: https://rhysd.github.io/vim.wasm/ You can even do *"...

		tyingq on Jan 20, 2021 \| parent \| context \| favorite \| on: Show HN: I built an online interactive course that... There's a WASM port of Vim: https://rhysd.github.io/vim.wasm/ You can even do "<esc>:e tutor" to run vimtutor. Also, "<esc>:export" does an http download of the current buffer contents.