- 易百教程 - 专注于IT教程和实例
- 菜鸟教程 - 提供了HTML，CSS，Javascript，Python，Java，Ruby，C，PHP , MySQL等基础知识与在线实例
- Programming Tutorials and Source Code Examples - Java, Mobile, C# /C++ /C, Database
- Happy Codings - Programming Code Examples with C++ C C# Java Php Asp Visual Basic
- OverAPI.com - Collecting all the cheat sheets
- 基础教程网 - 提供电脑基础入门学习的公益站点，可以在线浏览也可以下载到本机阅读
- C语言中文网 - C语言，C++教程，Java教程，Linux
- 鸟哥的Linux私房菜 简体 繁體
- Android官方培训课程中文版
- 技术参考 Home - SQL server，SSAS，Mondrian，MDX语言，MySQL
- Git 简体中文 - distributed-even-if-your-workflow-isnt. Reference, Book, Videos, External Links.
- Markdown 语法说明 (快速入门)
- Mars Android
- 慕课网 - 提供了丰富的移动端开发、php开发、web前端、android开发以及html5等视频教程资源公开课
- Compile and Execute Programs Online - You can compile and run, execute your source code related to Java, JSP, Cold Fusion, C, C++, Pascal, Fortran, PHP, Perl, Ruby and Python programs onnline using your browsers, iPhone, iPad or any other online device like smart TV using this virtual Linux / Unix Server.
- StackEdit - In-browser markdown editor
- 在线工具 - 提供jsbin在线 CSS，JS 调试，Less CSS编译器，MarkDown编译器等其他在线工具
- JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
- RunJS - 在线编辑、展示、分享、交流你的 JavaScript 代码
- CodePen - Front End Developer Playground & Code Editor in the Browser
- Ideone.com - Online Compiler and IDE >> C/C++, Java, PHP, Python, Perl and 40+ other compilers and interpreters
- JAR Search - findJAR.com is a JAR search engine that helps Java developers to find JAR libraries containing required Java classes.
- FileWatcher File Search - The File Search Engine
- Maven Repository - Search/Browse/Explore
- Download Source Code - AJAX, AngularJS, Java, Database
- HTML5 UP - Responsive HTML5 and CSS3 Site Templates
- Json在线解析及格式化验证
- RegExr: Learn, Build, & Test RegEx - RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
- HTML色彩代码
- 在线API文档 - 提供在线 Java API文档, 在线 PHP API文档, 在线 Node.js API文档等其他在线工具