Learn to Code and Help Nonprofits | freeCodeCamp
LeetCode Online Judge
jQuery Plugins - Bootstrap Plugins - WordPress Plugins | CodeCanyon
CodePen - Front End Developer Playground & Code Editor in the Browser
Anybody can learn | Code.org
Free Online Tools For Developers - To Beautify, Validate, Minify, Analyse, Convert JSON, XML, JavaScript, CSS, HTML, Excel
Codeforces
Programming Competition,Programming Contest,Online Computer Programming
Base64 Decode and Encode - Online
Codelist.cc - Download Free Premium Scripts and Plugins
源码下载 - 源码爱好者
ZetCode, tutorials for programmers
Train with Programming Challenges/Kata | Codewars
Create QR-Codes with Logo or Image fast, free & easy | QRCode-Monkey-Generator
IFSC Code - MICR Code BSR Code of all Bank Branches in India
CodePlex - Open Source Project Hosting
World Postal Code - free postcode lookup & finder
Specular | Responsive Multi-Purpose Wordpress Theme – From Themeforest | Just another WordPress site
codemade.io Projects made with code
Codementor | Instant 1:1 Help from Expert Developers
CodeTantra (TM) - Best C, Java, Selenium 2.0 and Hadoop Online Courses
Free source code, tutorials and articles | Visual Basic, VB.NET, C#, PHP/MySQL, C/C++, Java/JavaScript, ASP/ASP.NET, MS Access, FoxPro, SQL
CodeSandbox: Online playground for React