WP SlackSync - Synchronize Slack channels + chats with your Wordpress site
Typora - A minimal Markdown reading & writing app.
yaP - Innovative digital banking. Sign up to YAP and get a digital banking account – No hidden fees, no minimum balances, and no paperwork.
Dillinger - joemccann has 95 repositories available. Follow their code on GitHub.
Slackin - Create your own public Slack chat community
StackEdit - Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.