Rubyoshka: composable HTML templating for Ruby

Allow fast access to internal fstring of symbols and modules

N+1 count query killer for ActiveRecord

Fix n+1 aggregate sql functions for rails

Faster implementation of Haml template language.

simdjson gem is a binding to use simdjson, which is a Lemire's fast JSON parser.

Generates modules that provide conventional value semantics for a given set of attributes. The behaviour is similar to an immutable `Struct` class, plus extensible, lightweight validation and coercion.

Benchmark objects to help calculate Big O behavior

Native fuzzy string search

Rails database scrubber and loader, great for seeding your dev db with real but sanitized data

Provides classes and helpers for dealing with emoji character data as unicode. Wraps a library of all known emoji characters and provides convenience methods.

Event Sourcing Library

Filterer lets your users easily filter results from your ActiveRecord models.

Hm is a library for clean, idiomatic and chainable processing of complicated Ruby structures, typically unpacked from JSON. It provides smart dig and bury, keys replacement, nested transformations and more.

Find unused methods and classes/modules

Opinionated logger which outputs messages in JSON format

Schema-based validation and coercion for Ruby data structures, inspired by Prismatic/schema for Clojure.

This gem adds comments to the SQL to indicate where the SQL parts are constructed.

Write benchmarks without the hassle

A set of enhancements to the standard library benchmark.rb