Test your HTML emails before sending them.
PutsMail became the most popular tool to test HTML emails, and was acquired by Litmus in 2014.
PutsReq lets you record HTTP requests and simulate responses like no other tool available.
PutsBox makes email integration tests easy.
Ruby CLI for InfluxDB.
Mongo profiling tool which matches queries with code.
Query params based searching for MongoDB.
Sidekiq StatsD is a Sidekiq server middleware to send Sidekiq worker metrics through statsd.
Check out my GitHub profile.