"Portable Firefox With Web Hacking Addons Bundled. It is useful for instant web app security assessment. It includes Firebug, HackBar, JSDebugger, NF-Tools, LiveHttpHeaders, Selenuim IDE, FireEncrypter, TamperData, WebDeveloper, etc."
"This tool helps you encoding arbitrary texts to and from 65 kinds of charsets. Also some encoding/encryption/hashing functions featured by JavaScript/PHP are provided."