Ace

Code editor written in JavaScript

Aptana Studio

Development environment for making web pages

Atom

BlueFish

Web page editor for Windows, Mac, or Linux for many languages.

BlueGriffon

Web page editor for Windows, Mac, or Linux.

Brackets

Codeanywhere

Cross-platform cloud IDE

CodeMirror

Text editor implemented in JavaScript for the browser.

ICEcoder

Code editor in the browser.

Komodo Edit

Free mulit-language editor

KompoZer

Web authoring system based on NVU architecture

Light Table

Code editor

Microsoft Web Platform

Install tools need to start developing Web applications on the Microsoft platform.

Microsoft WebMatrix

Web development tool for Windows with a Web server, a database, and programming frameworks.

Mobirise

Free application for making web sites.

Notepad++

Editor for many programming languages.

Nvu

Pronounced "n-view", a new view. A Web authoring system similar to Dreamweaver.

Orion

IDE that runs in the cloud.

PageBreeze

HTML editor

Programmer's Notepad

Editor for many programming languages including HTML

SeaMonkey

Includes a WYSIWYG HTML editor.

Visual Studio Code