Simple-Calendar by Xtendify

The best way to manage events in WordPress. Maintained by stuttter on GitHub, where it has earned 45 stars from the community.

Air-helper plugin cleans up WordPress and prepares it for air-light theme based development. It brings in helpful helper functions and modifications for all kinds of WordPress projects. Maintained by digitoimistodude on GitHub, where it has earned 57 stars from the community.

#WordPressPlugin: allows you to author posts in Markdown, but stores rendered HTML in post_content so you can deactivate with impunity. Maintained by markjaquith on GitHub, where it has earned 30 stars from the community.