Tools

Git

Git - Git is a free and open source distributed version control system.
Meld - Meld is a visual diff and merge tool targeted at developers.

editor

Haroopad - The Next Document processor based on Markdown
Sublime Text - The text editor you'll fall in love with

browser

Google Chrome - A fast, secure, and free web browser built for the modern web.

FTP

FileZilla - The free FTP solution for both client and server.

Prototypes

Axure - Prototypes, Specifications, and Diagrams in One Tool
XMind - The most popular mind mapping software

Input Methods

万能五笔