P is a text preprocessor designed for Pandoc (and more generally Markdown and reStructuredText). PP implements:
- macros
- literate programming
- GraphViz, PlantUML and ditaa diagrams
- Bash, Cmd, PowerShell, Python and Haskell scripts
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Mac
- Windows
- Linux
The C preprocessor implements the macro language used to transform C, C++, and Objective-C programs before they are compiled. It can also be useful on its own.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
Gema is a general purpose text processing utility based on the concept of pattern matching. In general, it reads an input file and copies it to an output file, while performing certain transformations to the data as specified by a set of patterns defined by the user.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
A command line tool for squashing JS and CSS files. Used mostly for building UserJS.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
filepp is a generic file preprocessor. It is designed to allow the functionality provided by the C preprocessor to be used with any file type. filepp supports the following keywords, all of which have their usual C preprocessor meanings and usage.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
GNU M4 is an implementation of the m4 macro preprocessor. Developed by the GNU Project, GNU M4 is designed to avoid many kinds of limits found in traditional m4 implementations, such as maximum line lengths, maximum size of a macro and number of...
Cost / License
- Free
- Open Source
Platforms
- Linux
GiD is a universal, adaptive and user-friendly pre and postprocessor for numerical simulations in science and engineering. It has been designed to cover all the common needs in the numerical simulations field from pre to post-processing: geometrical modeling, effective...
Cost / License
- Paid
- Proprietary
Platforms
- Mac
- Windows
- Linux
GPP is a general-purpose preprocessor with customizable syntax, suitable for a wide range of preprocessing tasks. Its independence from any one programming language makes it much more versatile than the C preprocessor (cpp), while its syntax is lighter and more flexible than...
Cost / License
- Free
- Open Source (LGPL-3.0)
Platforms
- Mac
- Windows
- Linux
This is a simple JavaScript preprocessor (written in javascript) to enable conditional compilation. The syntax of the preprocessor is a subset of the C preprocessor.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
jsmake is a basic javascript preprocessor/build utility (Perl script) that you can easily integrate in your continuous integration environment.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
wepp is a node module that processes LESS and JavaScript files in order to combine and minify them for production use. It depends on and makes use of fQuery.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
JavaScript::Ectype - A JavaScript Preprocessor designed for large scale javascript development.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
Sprockets: Rack-based asset packaging.
Sprockets is a Ruby library for compiling and serving web assets. It features declarative dependency management for JavaScript and CSS assets, as well as a powerful preprocessor pipeline that allows you to write assets in languages like Cof.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
Collection of Ant tasks for a JavaScript build process.
-
Preprocess: This Ant task processes statements like #ifdef, #ifndef or #endif.
-
YUICompress: This task compresses the specified script using the YUICompressor package. The YUICompressor will remove all unneeded whit.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
-
flintjs is a small JavaScript build framework, designed for building JS libraries. It's powered by Apache Ant.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
A variation on the C preprocessor that (1) works on multiple languages and (2) encodes preprocessor statements as comments in that language so syntax correctness is not broken.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
The build preprocessor is similar to the C preprocessor, meant for processing files which have no built-in preprocessor such as XUL and JavaScript documents.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux


































