Inspired by ctemplate, Mustache is a framework-agnostic way to render logic-free views. As ctemplates says, "It emphasizes separating logic from presentation: it is impossible to embed application logic in this template language. Think of Mustache as a replacement for your views. Instead of views consisting of ERB or HAML with random helpers and arbitrary logic, your views are broken into two parts: a Ruby class and an HTML template.

ruby-prof is a fast code profiler for Ruby. It is a C extension and therefore is many times faster than the standard Ruby profiler. It supports both flat and graph profiles. For each method, graph profiles show how long the method ran, which methods called it and which methods it called. RubyProf generate both text and html and can output it to standard out or to a file.

Build command-suite CLI apps that are awesome. Bootstrap your app, add commands, options and documentation while maintaining a well-tested idiomatic command-line app

Identify email addresses or domains names that belong to colleges or universities. Help automate the process of approving or rejecting academic discounts.

A iterations per second enhancement to Benchmark.

Ruby bindings for Datadog's API

This gem is used by GitLab to render any non Markdown markup

Have you ever wanted to call <code>exit()</code> with an error condition, but weren't sure what exit status to use? No? Maybe it's just me, then. Anyway, I was reading manpages late one evening before retiring to bed in my palatial estate in rural Oregon, and I stumbled across <code>sysexits(3)</code>. Much to my chagrin, I couldn't find a +sysexits+ for Ruby! Well, for the other 2 people that actually care about <code>style(9)</code> as it applies to Ruby code, now there is one! Sysexits is a *completely* *awesome* collection of human-readable constants for the standard (BSDish) exit codes, used as arguments to +exit+ to indicate a specific error condition to the parent process. It's so fantastically fabulous that you'll want to fork it right away to avoid being thought of as that guy that's still using Webrick for his blog. I mean, <code>exit(1)</code> is so passé! This is like the 14-point font of Systems Programming. Like the C header file from which this was derived (I mean forked, naturally), error numbers begin at <code>Sysexits::EX__BASE</code> (which is way more cool than plain old +64+) to reduce the possibility of clashing with other exit statuses that other programs may already return. The codes are available in two forms: as constants which can be imported into your own namespace via <code>include Sysexits</code>, or as <code>Sysexits::STATUS_CODES</code>, a Hash keyed by Symbols derived from the constant names. Allow me to demonstrate. First, the old way: exit( 69 ) Whaaa...? Is that a euphemism? What's going on? See how unattractive and... well, 1970 that is? We're not changing vaccuum tubes here, people, we're <em>building a totally-awesome future in the Cloud™!</em> include Sysexits exit EX_UNAVAILABLE Okay, at least this is readable to people who have used <code>fork()</code> more than twice, but you could do so much better! include Sysexits exit :unavailable Holy Toledo! It's like we're writing Ruby, but our own made-up dialect in which variable++ is possible! Well, okay, it's not quite that cool. But it does look more Rubyish. And no monkeys were patched in the filming of this episode! All the simpletons still exiting with icky _numbers_ can still continue blithely along, none the wiser.

A Ruby CLI gem that beautifies the terminal's ls command, with color and font-awesome icons.

Uses wkhtmltopdf to create PDFs using HTML

A simple Ruby client for the algolia.com REST API

rdoc generator html with javascript search index.

a simple library to read afm files and use the data conveniently

A gem that provides text handling for Twitter

lolcommits takes a snapshot with your webcam every time you git commit code, and archives a lolcat style image with it. It's selfies for software developers. `git blame` has never been so much fun.

Ruby/Graphviz provides an interface to layout and generate images of directed graphs in a variety of formats (PostScript, PNG, etc.) using GraphViz.

bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords.

This gem implements bcrypt_pbkdf (a variant of PBKDF2 with bcrypt-based PRF)

RecursiveOpenStruct is a subclass of OpenStruct. It differs from OpenStruct in that it allows nested hashes to be treated in a recursive fashion. For example: ros = RecursiveOpenStruct.new({ :a => { :b => 'c' } }) ros.a.b # 'c' Also, nested hashes can still be accessed as hashes: ros.a_as_a_hash # { :b => 'c' }

RubyCritic is a tool that wraps around various static analysis gems to provide a quality report of your Ruby code.