TinyMCE Spellcheck is new WordPress plugin that lets you add a simple spellcheck button in visual editor present in WordPress add new & edit post pages. The plugin is easy to use and automatically starts working after activation. It is a fork of After the Deadline plugin which is now a part of Jetpack by WordPress.Com plugin.
After the Deadline is a free service that lets you create better content and you spend less time in editing your work like your blog posts and other content you create on Internet. You can use it in your WordPress site, bbPress, BuddyPress, Google Chrome, Firefox and various other frameworks.