Overflow is a plain text field type, with a soft or hard character limit. It's perfect for things such as metadata titles and descriptions, which have an "ideal" length, but not an absolute limit.
Overflow will gently inform your content authors when they exceed a soft character limit, but will still allow the entry to be saved.
Opting for a hard limit causes Overflow to behave exactly like the built-in plain text field.
To install this plugin, search for its package name on the Plugin Store and click “Install”.