Model.validates { presence_of :name }

Lightbox2 for Rails asset pipeline

Change log format to json in Rails.

Better Stack Rails integration

Markdown Rails is a comprehensive stack for rendering Markdown templates and partials in Rails.

Run code after the current Rack response or Rails action completes

MCP on Ruby exposes existing Rails controller actions as Model Context Protocol (MCP) tools. Agents call your app through the same routes, authentication, policies, params, and JSON responses your users already rely on. Built on the official mcp gem; serves Streamable HTTP and stdio.

Rails gem which adds emoji parsing to markdown

MJML parser and template engine for Ruby

JS module system for Ruby on Rails 4 Assets Pipeline that solves scripts order issues

Multiselect jQuery plugin for Rails asset pipeline

A web interface for Notable

Migrations

PageDown Bootstrap for the Rails asset pipeline

PageDown for the Rails asset pipeline

With Params validator oyu should be able to perform controller params validation easy and with any kind of type, format, or custom validation you already know and use in oyur models.

ActiveRecord extensions for PostgreSQL. Provides useful tools for schema, foreign_key, index, function, trigger, comment and extension manipulations in migrations.

Adds methods to ActiveRecord::Migration to create and manage PostgreSQL objects in Rails

For large or expensive pages, use this gem to load less critical portions of the page. Especially useful for large queries or content that's hidden from the user on load. The best solution may be to optimize your content, but there's not always time for that.

Simple activity feeds solution for Rails applications. Gives a flexible way to build activity feeds infrastructure over it.