kaminari-mongo_mapper lets your MongoMapper models be paginatable

Koi CMS admin framework

Katapult is a framework for generating base code for Rails applications in two leaps. Basics Generation prepares a new Rails application with lots of best practices, Model Transformation generates application code from a model of the application.

Rails UI plugin for Killbill administration.

An Active Record DSL extension that allows you to declare multiple associaitons with a block

Kazan creates rails project and setups predefined gems and tools.

Implementing OAuth with Keycloak in Ruby

Keycloak ruby client

A gem packaging of kickstrap.js for Rails 3.1+

Shareable tools/components for building a digital collections app in Rails.

A command palette built with Hotwire and Meilisearch

Simpler and safer Rails credentials access with blank value detection and clear error messages

Metadata aggregation and enrichment for cultural heritage institutions.

kube-rails project integrates Kube for Rails 4 Asset Pipeline

Rails Mountable Engine that sets up your Product Blog, share your posts on facebook, twitter and E-mail your users with your latest product news

Kuhsaft is a Rails engine that offers a simple CMS.

Lalala: Probably the best CMS in the world

LambdaPunch: Async Processing using Lambda Extensions

Add logs to your error messages, using exception_notifier or smth like it

lazy-images-rails is a rails plugin that augments the standard image_tag helper to provide instant placeholders while theactual image is still being fetched.