acts_as_api enriches the models and controllers of your app in a rails-like way so you can easily determine how your XML/JSON API responses should look like.

Simple pub/sub messaging for the web

Rails middleware to prerender your javascript heavy pages on the fly by a phantomjs service

This gem allows you to set the SameSite=None cookie directive without breaking browsers that don't support it.

Removes invalid UTF8 characters from the URL and other env vars

Improve font serving in Rails 3.1

JSON:API serialization, error handling, filtering and pagination.

Send puma metrics to statsd via a background thread

Differentiate development environment from production

Insert LiveReload into your app easily as Rack middleware

Switching database connection between readonly one and writable one.

CSV Validator

This library allows you to recognize and build URLs in a Rack application.

A static site generator. Provides dozens of templating languages (Haml, Sass, Slim, CoffeeScript, and more). Makes minification, compression, cache busting, Yaml data (and more) an easy part of your development cycle.

GitHub Markdown straight from your shell.

Console for any Rack based ruby web app

Websocket interface on Rack Hijack w/ Rails support

Awestruct is a static site baking and publishing tool. It supports an extensive list of both templating and markup languages via Tilt (Haml, Slim, AsciiDoc, Markdown, Sass via Compass, etc), provides mobile-first layout and styling via Bootstrap or Foundation, offers a variety of deployment optio...

The AWS X-Ray SDK for Ruby enables Ruby developers to record and emit information from within their applications to the AWS X-Ray service.

Simple Rails & AWS Lambda Integration using Rack and various utilities.