Rumkin.com
GeocachingToolbox.com. All geocaching tools a geocacher needs in one box: a lot useful geocaching tools, links, html tips and more.
w3cschool启用中文品牌名--编程狮,是一个专业的W3C前端开发及编程入门学习平台,提供包括HTML,CSS,Javascript,jQuery,C,PHP,Java,Python,Sql,Mysql等编程语言和开源技术的在线教程及使用手册,是类国外w3schools的W3C学习社区及菜鸟编程平台。
Online tools to Convert XML, YAML, CSV, Base64, Timestamp, Date, HTML Entity, URL, SQL, Images, Code
Welcome [splitbrain.org]
Several encoders and decoders (Base64, URL, IDN, ...) for conversions between common text and binary data representations.