We use this library at GitHub to detect blob languages, highlight code, ignore binary files, suppress generated files in diffs, and generate language breakdown graphs.

Fast and easy syntax highlighting for selected languages, written in Ruby. Comes with RedCloth integration and LOC counter.

Parade is an open source presentation software that consists of a Sinatra web app that serves up markdown files in a presentation format. Parade can serve a directory or be configured to run with a simple configuration file. * Markdown backed data > This ultimately makes it easier to ...

Code syntax highlighting plugin via rouge for Middleman

It makes working with pure SQL easier with syntax highlighting. Let's you clean your Ruby code from SQL strings.

Highlight highlights code in more than 20 languages. It uses the Pygments syntax highlighter and adds a simple Ruby API over it. It also provides helpers for use in your Ruby on Rails views.

Rack Middleware for Code Highlighting.

This is a remarkably trivial package that makes simply HTML-based presentations from a set up source files written using Textile. It's designed to help when creating slides that contain lots of code, as it allows code to be embedded from external source files. This means that the code that you e...

Converts source code into a (bookmarked, themed, and syntax highlighted!) PDF.

git diff with code syntax highlight

Render any text as markdown, with code highlighting and all!

Adds a CodeRay syntax highlighting filter to Haml

Rouge code highlighter support for Asciidoctor

This is a syntax highlighter plugin for Kramdown that leverages Tree-sitter's native syntax highlighter to highlight code blocks (and spans) when rendering HTML. Tree-sitter is a modern, general-purpose parsing library that outclasses many existing tools at the task of syntax highlighting. This ...

The goal of this project is to provide an easy & frictionless way to edit an online tech documentation. The sweet spot of this editor is to be able to generate pages containing multiple snippets of highlighted code & conditional sections (which wasn't really available in any other CMS we ...

Extends ActionText to support highlighted code blocks

Converts text formatted with an exceedingly simple markup language into valid HTML (iron clad guarantee!) - perfect for comments on your blog. Textile isn't good for this because not only does it do too much (do commenters really need subscript?), but it can also output invalid HTML (try a <b> ta...

A library for turning code snippets into slides. Automatically turn your source code into syntax-highlighted PDFs and PNGs. Take the tedium out of building your presentation's slide deck!

Use Tombstone to highlight dead code. Not sure if some code is safe to remove? Tombstone it.

A rails gem to display your code properly on webpages using syntaxHighlighter