Install
Upload it under Plugins → Add New Plugin → Upload Plugin, then activate.
Install straight from GitHub with WP-CLI:
wp plugin install https://github.com/yosiakatsuki/ys-wp-moji-count/releases/download/v1.0.2/ys-wp-moji-count.zipNo built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
投稿一覧ページに文字数カウント列を追加するだけのプラグイン
Releases
3 releases. Each count is every asset in that release; expand a row for the breakdown.
Tag
Published
Assets
Downloads
Active-site estimate ≈10 comes from the median of recent superseded releases. Method.