Alternatives to HTMLPen.com for all platforms with any license

Visual Studio Code

Code combines the streamlined UI of a modern editor with rich code assistance and navigation, and an integrated debugging experience – without the need for a full IDE.

Free Open Source Windows Linux Electron / Atom Shell Mac
Extensible by Plugins/Extensions Lightweight Built-in Terminal Customizable ... Intellisense Syntax Highlighting Autocompletion Code completion Dark theme GIT support Support for Javascript Multiple cursors Bugs C# Scripting Color coding of code Embedded debugger Git integration MarkDown support Mercurial support Minimap Plugin support Run Android Apps on Desktop Version and Source control Add a feature

471 Like
Brackets

Brackets is an open-source editor for web design and development built on top of web technologies such as HTML, CSS and JavaScript. The project was created and is...

Free Open Source Mac Windows Linux Electron / Atom Shell
Autocompletion Live Preview Built-in Level Editor Easy to switch encoding ... Extensible by Plugins/Extensions Multiple languages Streamlined interface Syntax Highlighting Add a feature

377 Like
Geany

Geany is a small and lightweight Integrated Development Environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other...

Free Open Source Mac Windows Linux BSD PortableApps.com ... Xfce
Lightweight Code navigation Customizable Support for Large File ... Minimalistic Portable Spell checking Syntax Highlighting Add a feature

461 Like
GNU Emacs

GNU Emacs is an extensible, customizable text editor—and more. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions...

Free Open Source Mac Windows Linux BSD
Customizable Extensible by Plugins/Extensions Package Control Scripting ... Self-documenting Syntax Highlighting Terminal-based Add a feature

287 Like
Pastebin.com

The website is mainly used by programmers to store pieces of sources code or configuration information, but anyone is more than welcome to paste any type of text. The...

Freemium $ $ $ Windows Web Android iPhone HP webOS ... Chrome Firefox
No features added Add a feature

144 Like
Kate

Text editor for the KDE desktop environment with support for multiple languages and syntax highlighting. It is extensible with plugins. Features a MDI interface. ...

Free Open Source Windows Linux BSD KDE
Code formatting Support for regular expressions Syntax Highlighting Tabbed interface Add a feature

179 Like
CodePen

Online playground for testing and sharing HTML, CSS and JavaScript code snippets. Enter your code in the three appropriate panes and see live how it all comes together....

Freemium Web
HTML/CSS/JS rendering Live Preview Support for NodeJS Add a feature

67 Like
Adobe Dreamweaver

Adobe Dreamweaver is a proprietary web development tool developed by Adobe Systems.

Commercial Mac Windows
WYSIWYG Support Visual design Support for Bootstrap Drag n drop ... Support for FTP Live Preview Support for SFTP WYSIWYG Support Add a feature

288 Like
Aptana Studio

Aptana Studio is a complete web development environment that combines powerful authoring tools with a collection of online hosting and collaboration services that help...

Free Open Source Mac Windows Linux
Support for FTP Real time collaboration Add a feature

325 Like
- Discontinued Aptana is still in development on GitHub but latest version, 3.6.1, was released in October 2014. It lacks Java 8/9 features, as well as newer Javascript and HTML 5 features.
jsFiddle

jsFiddle lets one easily test snippets of JavaScript/CSS/HTML code on-the-fly, adding optional libraries like jQuery.

Free Web
Cloud IDE Live Preview Add a feature

105 Like
WebStorm

JetBrains WebStorm is a commercial IDE for JavaScript, CSS & HTML built on JetBrains' IntelliJ IDEA platform. WebStorm provides automatic code completion...

Commercial Mac Windows Linux
Support for Javascript Syntax Highlighting Add a feature

94 Like
TextMate

TextMate brings Apple's approach to operating systems into the world of text editors. By bridging UNIX underpinnings and GUI, TextMate cherry-picks the best of both...

Commercial $ $ $ Open Source Mac
Automatic Indentation Extensible by Plugins/Extensions Search and replace Syntax Highlighting ... Support for Themes Add a feature

248 Like
Coda

Coda is a fast, clean, and powerful text editor with pixel-perfect preview and a built-in way to open and manage your local and remote files. And a dash of SSH too. ...

Commercial Mac iPhone iPad
Built-in File Manager Live css editing Real time collaboration Syntax Highlighting Add a feature

275 Like
Bluefish Editor

Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many...

Free Open Source Mac Windows Linux
PHP IDE Support for SFTP Add a feature

137 Like
PSPad

PSPad is a freeware programmers editor in 8 languages for Microsoft Windows operating systems. Some features are highlighted syntax, ftp, projects and so on. Code...

Free Windows
Syntax Highlighting Edit files without creating a project Lightweight Portable Add a feature

191 Like