MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail.

MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail.

Basic Mailjet ActionMailer support

A web interface to view emails sent out when developing in Rails

Funnels email into HipChat using CloudMailIn

Mainline is a rails plugin which exposes your rails app via webrick to allow testing with browser automators such as Selenium or Watir. Mainline allows your rails actions to run in the same transaction as your unit tests so you can use fixtures, factories, or whatever.

simple web application framework for learning.

Framework built from scratch

Minuscule algebraic types for Ruby

Mandrake loads middlewares conditionally, and it provides two options and DSL for setting conditions

Verify signed HTTP requests from Manifold

A Ruby gem providing development tools for MapLibre GL JS styles, including advanced layer filtering, terrain visualization, elevation profiles, and performance monitoring.

A Ruby gem providing development tools for MapLibre GL JS styles, including advanced layer filtering, terrain visualization, elevation profiles, and performance monitoring.

Runs a local server so you can edit and local (auto) save markdown documents.

# Markdown Explorer This Ruby Gem uses Sinatra and Redcarpet to allow you to CRUD markdown files on your local system.

A minimal Rack app for drafting and previewing Markdown

{Marlowe}[https://github.com/KineticCafe/marlowe] is a Rack middleware that extracts or creates a request ID using a pre-defined header, permitting request correlation across multiple services. When using Rails, Marlowe automatically adds itself to the middleware before <tt>Rails::Rack::Logger</...

Mascot rack app for stand-alone of embedded usage.

builds things

Transform mathematical images to LaTeX, chemistry structures to SMILES, and documents to markdown with security-first design. Features HTTPS enforcement, path traversal protection, structured logging, and complete MCP (Model Context Protocol) server integration. The geodesic path to mathematical ...