Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.

Sample PHP script to send email with Sendbridge.com

Bitcoin Core integration/staging tree

📈Lightweight k-line chart that can be highly customized. Zero dependencies. Support mobile.（可高度自定义的轻量级k线图，无第三方依赖，支持移动端）

Forward / relay emails sent to aliases

PLURA is a cryptocurrency focused on crypto adoption by masses through affordable Crypto e-Commerce Payment Solution.

The source code to VVVVVV! http://thelettervsixtim.es/

Elasticsearch tutorial - ludekvesely.cz

PluraCoin Client-side JS Web Wallet

Karbo Clientside Web Wallet