jV

Does more or less what it says: it turns all your <textarea>s into miniature vi editors. A few issues I've noticed: - the cursor in normal mode still looks like the "insert" cursor, rather than a block. This leads to some confusion about what character is currently selected. This may actually be a limitation of Chrome. - Typing in characters with the option key on a Mac (e.g. option-d = ∂) causes jV to get stuck in insert mode. - Does not save any state between pages, e.g. your last search (for when you hit /<cr>) or your last edit (for when you hit .). But overall, this is tremendously useful if you want to do lots of text editing in web forms.

Works OK, but has some annoying bugs and nobody is apparently fixing them.

A bit clunky, and doesn't work for all text input. Still extremely cool.