Block types a host registers, a layout its own record keeps, and a grid a designer arranges blocks on, following keystone_ui's design.

A companion engine for keystone_ui that provides preset themes and per-user color palette persistence.

CSS files that restyle every keystone_ui component through keystone_ui-styles' --ks- variables, registered with keystone_ui on install.

A companion engine for keystone_ui that saves each person's choices for a component, such as a data table's hidden columns, and supplies them back to keystone_ui.

Mounting, a component registry and React controls that match keystone_ui, for Rails engines with React UIs.

Color variables, light and dark mode, and component classes shared by keystone_ui and keystone_ui-react.

KeyValue based replacement for rails TaggedLogging

jQuery File Upload by Sebastian Tschan integrated for Rails 3.1 Asset Pipeline, forked by imkmf

KickoffRails is a collection of Rails generators for faster project setup.

kiosk-server is the host-side surface for Kiosk. The full surface ships: - The controllers — the per-verb endpoints (GET <endpoint>/<query-name>, POST <endpoint>/<action-name>) and the reserved endpoints (/kiosk/schema, /kiosk/pay), a derived OpenAPI description of both, OAuth client registration (RFC 7591) and the token endpoint (private_key_jwt client assertions, DPoP), JWKS, the KYC attestation endpoint, agents.txt / agents.json / kiosk.json discovery, and the account-binding ceremony (RFC 8628 device authorization and token poll, the verify and «Link an assistant» pages). - Kiosk::Server::Executor — dispatches a resolved command to the queries and actions the host registered. - Client registration and authentication, with a pluggable agent-IdP. - The proof-of-work toll that a kiosk-reputation policy sets (soft dependency; zero overhead when no policy is set). - A Rack middleware injecting the Kiosk-Server-Version / Kiosk-API-Version / Kiosk-Min-Client response headers, a pure-Ruby builder for the discovery documents, SQL generators for the canonical schema migrations, and a `kiosk:install` generator that lays down the initializer and the migrations. The Rails engine serves that whole surface from one `kiosk` block in config/routes.rb, which mounts it at Kiosk.configuration.mount_path — drawing the verb/auth/JWKS/KYC/binding routes under the mount and installing the root-relative discovery routes (agents.txt, .well-known) into the host — then one route per query and action the block names. It also auto-injects the headers middleware.

Pin any of Iconify's 224 icon sets (299k icons) to vendor/icons/. Inline SVG rendering, zero JavaScript, vendored for production.

Allows you to use .liquid templates in your views & ViewComponents.

Knitsearch adds FTS5-backed full-text search to ActiveRecord models. Search by rich text, associated records, or multiple models in one query. Index updates synchronously via SQLite triggers, atomic with source writes. BM25-ranked results returned as a chainable Relation. Supports typo tolerance, phrase matching, prefix matching, highlighting, snippets, and more.

Provides a Rails form builder to seamlessly setup a Knockout-js based view model on your forms.

Web Notification Gem

Automatically captures request context, performance data, and error information for Koderift log analytics.

Kozenet UI is a modern, production-ready component library for Ruby on Rails. Built with ViewComponent and Tailwind CSS, it provides beautiful, accessible, and customizable UI components with dynamic theming support. Features CSP-compliant styling, dark mode, and smooth animations.

A mountable Rails engine and Ruby library that proposes KPIs from application schemas and certifies their SQL before publication.

Kraken framework from Chris Ferdinandi for Rails 3.1+

Create starter applications for Rails, Ruby, and various javascript frameworks.