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.

Man-in-the-middle http/https transparent http (CONNECT) proxy over bunch of (unreliable) backends

SMTP server with web interface for easy local development. Sets up a little mail server that you can send messages to, and provides a web front end to let you see what your app did.

Mappum is the tree to tree (object, bean etc.) mapping DSL.

markov chain management

opinionated static web page generator

metasploit-framework

A redirector, url mangler and webpage interceptor for the Squid HTTP proxy

A Ruby gem for faking external web services for testing, forked and updated version of Luke Redpath's mimic

A Ruby wrapper for mediainfo CLI.

A redesigned Ruby web interface.

Receive http requests and print them to standard out

Micro k8s on Ruby - a simple tool to deploy containers to mimic a (very) minimalistic k8 cluster with a nice REST API

MNotifier

Mobox builds mobile app quickly using Haml, SASS, CoffeeScript, and Phonegap, to name a few.

A quick way of mocking an external web service you want to consume.

MockWS : Web services mocking utility

A rails gem that allows you to briefly defer execution of tasks and return from requests faster.

Household account book, written in Rails

The crowd, suddenly there where there was nothing before, is a mysterious and universal phenomenon. A few people may have been standing together -- five, ten or twelve, nor more; nothing has been announced, nothing is expected. Suddenly everywhere is black with people and more come streaming from all sides as though streets had only one direction.