managing jar dependencies with or without bundler. adding bundler like handling of version ranges for jar dependencies.

Build complex rules, serialize them as JSON, and execute them in ruby. See http://jsonlogic.com

Usable, idiomatic common monads in Ruby

A list of languages based upon ISO-639-1 and ISO-639-3 with functions to retrieve only common languages.

Validations mixin for Ruby objects and support for Lotus

A library which implements the OneSignal API.

Phone number parsing, validation and formatting

Rubygems plugin system using Gem.find_files, $LOAD_PATH and $LOADED_FEATURES.

A declarative DSL for building filters and sorts with Rails and Active Record

Pub / Sub Library using Amazon Web Services

Querly is a query language and tool to find out method calls from Ruby programs. Define rules to check your program with patterns to find out *bad* pieces. Querly finds out matching pieces from your program.

Rack-based console inside your web applications

Ruby Adapter for Raygun

Ruby-LLVM is a Ruby language binding to the LLVM compiler infrastructure library.

Use Valgrind memcheck without going crazy

Ruby with type.

Recurring jobs for Sidekiq

Features SMS text encoding detection, length counting, concatenation detection and more. Can be used with or without Rails. Requires Ruby 1.9 or newer.

charlock_holmes provides binary and text detection as well as text transcoding using libicu

Write TO​DOs in code that ensure you actually do them