Import tabular data from spreadsheets or similar sources into data models

Lacci - a portable Shoes DSL with switchable display backends, part of Scarpe

This gem add the "deep merge" feature to class Hash. It means that if you want to merge hashes that contains other hashes (and so on...), those sub-hashes will be merged as well. This is very handy, for example for merging data taken from YAML files.

ActiveRecord::SaneSchemaDumper removes useless/harmful whitespace from Rails’ generated `db/schema.rb` files.

Rails plugin that is based on acts_as_taggable by DHH but includes extras such as tests, smarter tag assignment, and tag cloud calculations.

This plugin provides native ElasticSearch instrumentation for monitoring and metrics collection, including: service health and metrics for cluster, node, and more.

A kdtree is a data structure that makes it possible to quickly solve the nearest neighbor problem. This is a native 2d kdtree suitable for production use with millions of points.

You can use this gem to create Ruby programs that work with audio, by reading and writing Wave sound files (*.wav). Since it is written in pure Ruby (as opposed to wrapping an existing C library), you can use it without having to compile a separate extension.

TurboReflex extends Turbo Frames and adds support for client triggered reflexes (think RPC) which let you sprinkle in functionality and skip the REST boilerplate.

A plugin-based framework for supporting multiple authentication and authorization systems in Rails/Rack apps. Supports resource-oriented route-by-route access control lists with TLS authentication.

Log parser to identify actions which significantly increase VM heap size

rblineprof shows you lines of code that are slow.

RSolr aims to provide a simple and extensible library for working with Solr

A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

A tool for syncing your repo of splunk objects with a splunk instance

Define a schema to validate requests and responses, expose it as JSON Schema

Simple class that shows free disk space for directory. Return free disk space as float.

A simple country code select helper. Works exactly the same as country_select but uses country codes instead.

Encode and decode hexadecimal strings with 0x prefix handling, produce xxd-style hex dumps, format hex output with configurable grouping, swap endianness, extract byte ranges, pad hex strings, convert between hex and integers, and validate hex strings.