Cardinal is a modular, “mobile-first” CSS framework built with performance and scalability in mind.

easily incorporate the amazing CarouFredSel into Rails 3.1+ projects

This provides the main functionality and plugin api for Cartoonist.

A gem to ease setup of Stripe Marketplace Payments

Enter "15.00" in a field by typing 1-5-0-0, like a cash register

Cells replace partials and helpers with OOP view models, giving you proper encapsulation, inheritance, testability and a cleaner view architecture.

WebGL Virtual Globe and Map Engine as Rails' Engine

Rails gem wrapper for CEZET Map

Binary Plist (CFPropertyList) renderer for rails3/4 apps.

Chai via assets pipeline

Ruby library for integrating with Changebase.io

mountable engine that parse git commits and produce github like change log

Chart Candy use D3.js library to quickly render AJAX charts in your Rails project. In a minimum amount of code, you should have a functional chart, styled and good to go.

This gem wraps the data to render chart and then it draws those charts in the web and use the same data to render charts as images, which is often useful when you want to render the chart in pdf or attach it to emails

Automatically generate remote json for chartkick

Chartkick charts with extras

Generate beautiful charts in rails

chats is a drop-in gem to add chat messaging to your Rails app. It implements a real-time messaging engine for Ruby on Rails 8+ apps: direct messages (DMs), group chats, image attachments, emoji reactions, read receipts, unread badges, and typing indicators. All rendered server-side and updated live with Hotwire (Turbo Streams over Action Cable), so it ships with zero custom JavaScript build steps and works with importmaps out of the box. Any model can converse via a single `acts_as_messager` macro (users, organizations, support agents — participants are polymorphic), conversations can be optionally attached to any domain record via `acts_as_chat_subject` (so users can chat about a specific order, a listing, a booking), and the whole inbox UI is overridable view-by-view like Devise. It exposes small adapter seams a blocked-users lookup, a `can_message` policy, and a notifier hook; so it snaps onto the `moderate` gem for Trust & Safety (report/block/filter, DSA + app-store compliance) and onto any notification system (like the `noticed` gem) without any hard dependencies. Messages support soft deletion, editing, system messages posted by your app, per-sender rate limiting, and optional encryption at rest.

Verify ChatWork webhook signature

chaves.js, bundled for Rails 3.0 and up.