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HyperDev - Developer Playground for Building Full-stack Web Apps, Fast. A Round up of Online Code Playgrounds. Nowadays, there are a variety of code playgrounds available online.

A Round up of Online Code Playgrounds

Some (such as JSFiddle or JSBin) are designed with sharing in mind, which is useful for building a reduced test case to demonstrate a bug or problem you are having. Some (such as ES6 Fiddle, or D3.js Playground) allow you to experiment with a specific library or technology without the fuss of creating files or setting up a build step. And others (such as CodePen) have an additional social aspect, enabling you to show off your latest creation and get feedback from your peers. It goes without saying that all of them are awesome and make developers’ lives considerably easier!

At SitePoint we use CodePen to host most of our front-end demos and until recently, I thought I knew it pretty well. So that’s the front-end. The first one that springs to mind is Plunker. The next site worthy of mention is ESNextbin. The final site I want to mention is HyperDev. HyperDev comes packed with a bunch of cool features. Introducing HyperDev. By Joel Spolsky Tuesday, May 31, 2016 One more thing… It’s been awhile since we launched a whole new product at Fog Creek Software (the last one was Trello, and that’s doing pretty well).

Introducing HyperDev

Today we’re announcing the public beta of HyperDev, a developer playground for building full-stack web-apps fast. HyperDev is going to be the fastest way to bang out code and get it running on the internet. Step one. Boom. All that happened just because you went to hyperdev.com. Notice what you DIDN’T do. You didn’t make an account. WebIDE - Firefox Developer Tools. WebIDE enables you to create, edit, run, and debug web apps using the Firefox OS Simulator or a real Firefox OS device.

WebIDE - Firefox Developer Tools

It also enables you to connect the Firefox Developer Tools to a number of other browsers, including Firefox for Android, Chrome on Android, and Safari on iOS. See the Remote Debugging page for instructions on how to connect to a specific browser. With WebIDE, you first set up one or more runtimes. A runtime is an environment in which you'll run and debug the app. A runtime could be a Firefox OS device connected to the desktop over USB (or over Wi-Fi since Firefox 39), or it could be a Firefox OS Simulator installed on the desktop itself.

Aptana. Closure Compiler Service. Online Code Editor - Codeanywhere.

Python

.net. CodeHS. Online Code Editor - Codeanywhere. Cloud9 - Your development environment, in the cloud. CompileOne. CodingBat. Select a Language. Help What is repl.it?

Select a Language

It is an online environment for interactively exploring programming languages. The name comes from the read-eval-print loop, the interactive toplevel used by languages like Lisp and Python. How do I start? Once you have selected a language, start by typing an expression into the console on the right side of the screen and pressing Enter. Can I use variables or other state? Yes! Can I save my session? Yes! Is repl.it open source? Can I use repl.it on my phone or tablet?

Yes!

DB

Select a Language. <kodtest/> Rendera - Online HTML5 Editor. Code.reloado.com - Collaborative JavaScript Debugging. Fiddle Salad Language Configuration. Try jsoup online: Java HTML parser and CSS debugger. CodeBunk: Online Realtime Collaborative Editor and Compiler. Mozilla Thimble. CSSDesk - Online CSS Sandbox. The first commented line is your dabblet’s title ✿ dabblet.com.

Codepad. Liveweave - HTML5, CSS3 & JavaScript playground for web designers & developers. Sencha Fiddle - Ext JS and Sencha Touch Fiddler. R-Fiddle. ES6 Fiddle. .NET Fiddle. SQLZOO. Learn SQL using: SQL Server, Oracle, MySQL, DB2, and PostgreSQL.

SQLZOO

Reference: how to... How to read the data from a database. 2 CREATE and DROP How to create tables, indexes, views and other things. How to get rid of them. 3 INSERT and DELETE How to put records into a table, change them and how to take them out again. 4 DATE and TIME How to work with dates; adding, subtracting and formatting. 5 Functions How to use string functions, logical functions and mathematical functions. 6 Users How to create users, GRANT and DENY access, get at other peoples tables. 7 Meta Data How to find out what tables and columns exist. 8 SQL Hacks Some SQL Hacks, taken from "SQL Hacks" published by O'Reilly 9 Using SQL with PHP on Amazon EC2 servers Video tutorials showing how to run MySQL, PHP and Apache on Amazon's EC2 cloud servers. 10 An introduction to transactions Video tutorials showing how sessions can interfere with each other and how to stop it. 11 Using SQL with C# in Visual Studio.

Database eLearning. SQL Fiddle. Codepad. Online Compiler, Editor & IDE for C, C++, C#, Java, Javascript, PHP, Ruby, VB. About rextester. Powered by OpenShift. Learn Java - Free Interactive Java Tutorial. Online Java Compiler - Online Java Editor - Java Code Online - Online Java Runner. Java Online Compiler & Runner. Ideone.com - Online Compiler and IDE >> C/C++, Java, PHP, Python, Perl and 40+ other compilers and interpreters. Compile and Execute Programs Online. Bootstrap Editor and Playground for JavaScript, CSS, HTML5 and jQuery.

Create a new fiddle - JSFiddle. JS Bin - Collaborative JavaScript Debugging. CodePen - Front End Developer Playground & Code Editor in the Browser. HTML5, CSS3, JS Demos, Creations and Experiments.