OpenShift is a Platform as a Service (PaaS) from RedHat. It’s great for deploying web applications as you can setup/scale/manage apps quickly without any hassle, just like Heroku, but the OpenShift platform is available as a free and open source software, so you’re not locked in (you can install OpenShift on your server and create …
Brackets is a free and open source web development editor! Available for all platforms.
PyCharm is a free and open source IDE for Python developer. It has lots of great features.
Checkout Spark – a sinatra like web framework in Java! Simple, fast and fun!
DNS prefetching – Perform DNS lookup before a user actually clicks on a link!