Source Code Generators

AutoGen
A tool designed for generating program files that contain repetitive text with varied substitutions. This is especially valuable if there are several blocks of such text that must be kept synchronized. [Open Source, GPL]
http://www.gnu.org/software/autogen/

CodeSmith
A freeware template-based code generator that can generate code for any ASCII-based language. CodeSmith templates use a syntax nearly identical to ASP.NET syntax so that creating templates should feel immediately familiar to ASP.NET developers.
http://www.codesmithtools.com/

CodeWorker
A parsing tool and a source code generator works on generative programming. It offers facilities for building a DSL, for generating code, for source-to-source translation or program transformation, for driving the automation process. [Open source, LGPL]
http://codeworker.free.fr/

Cotsec
Generate Java J2EE, C#, VB and C# source code from a definition of the application requirements. It separates business analysis (forms, database tables) from implementation (web form, desktop application, mobile application). [Commercial]
http://www.cotsec.com/

innoQ iQgen
A software generator that imports model information in XMI format and generates software artifacts, based on templates written as JSPs (Java Server Pages). [Commercial]
http://www.innoq.com/iqgen/

Jostraca: A Template Engine for Generative Programming
A general purpose code generation toolkit for software developers. It uses JSP syntax and can be configured to use a number of different programming languages. [Open source, GPL]
http://www.jostraca.org/

MetaL
Metaprogramming Language, XML based source code; compiler engine can emit same program from MetaL source code to any supported target language, now Java, Perl, PHP; add others any time. Also home of Metastorage, program automatically emits code from a high level data model definition.
http://www.meta-language.net/

MyGeneration Software
Code generator / mapping tool written in Microsoft .NET, emits code from templates by combining JScript, VBScript, DotNetScript C#, or DotNetScript VB.NET with a database meta-data API. Supports Microsoft Access and SQL, Oracle, IBM DB2, MySQL, PostgreSQL, FireBird, Interbase. Freeware.
http://www.mygenerationsoftware.com/

Objective Systems
Provides code generation tools that can generate C/C++, Java, C# code from ASN.1 (Abstract Syntax Notation 1) or XML schema specifications.
http://www.obj-sys.com

SmartState
A chart CASE tool with automatic state machine code generation in C++, Java, C and XML.
http://www.smartstatestudio.com

Somusar
Allows generate software source code files (Java/SQL, PHP/mySQL, C#/ASP) base at data structure and data values in .ef (internal Somusar format) and XML files.
http://www.somusar.com/

Temgen
An universal code generator based on its own template language. [Open source, GPL]
http://temgen.berlios.de/

Visual Documents
A tool for design, on a WYSIWYG environment and using the drop a drag method, source code (VB, VB.Net, Delphi, C#, Fox Pro) for print built-in documents from application. [Commercial]
http://www.neuronlabs.com/vdocs/

Warthware Table Access Code Generator
Generates MS Access DDL, Visual Basic ActiveX source code used to access data in tables and source code for a GUI that implements the classes. [Commercial]
http://www.warthware.com/

Westfaro Corp.
Makes software development tools including Kickstart scriptable code generator for Rapid Application Development (RAD) in any programming language. Brunswick, Ohio, USA.
http://www.westfaro.com/

Graphical Source Code Editors
Some details (block, code formatting, optimizing) of such editors, HTML as example, with reader comments. Smart Software. <small>(June 23, 2004)</small>
http://wesnerm.blogs.com/net_undocumented/2004/06/graphical_sourc.html