thirteen_f lets you easily search and retrieve SEC 13F filing data. The SEC is the U.S. Securities and Exchange Commission. 13F filings are disclosures large institutional investors in public securites have to provide and make public every quarter. It is a great way to follow what differe...

Use ThisData's Login Intelligence API in your ruby / rails app to monitor for unusual end-user activity

Learn Enough Ruby by Michael Hartl - palindrome gem.

Learn Enough Ruby palindrome detector

Generate shell completions for Thor CLIs.

A test framework that make building tests more intentional.

A simple gem that adds a validate_before method to Thor, allowing pre-command validations

ThreadedLogger runs a dedicated logging thread around Ruby's Logger library to ensure that multiple threads don't step on each other's toes.

If you are eg. downloading a large file, processing that file, then writing the results to a database, ThreadedPipeline may be for you. Download in one thread, process in another, and write in a third, etc.

CAUTION: Use this gem at your own risk. If you use gems that depends on the thread_safe gem, e.g. Rails, but your application is not doing any threading, then thread_hazardous can bring you a few performance improvements at the cost of making these dependencies non thread safe.

Thread Safety is a tool that plugs into Ruby's Modular GC feature to detect potential thread-safety issues.

rovides a simple API to query ThreatExpert by malware name (to receive a list of matching hashes) or hash (to receive a malware report). This also provides a simple upload feature.

Threatstack API integration for Ruby

An alternative to Foreman, which runs each command in a separate tab

three-rb provides Ruby APIs for building 3D scenes, with browser rendering through ruby.wasm and three.js.

A simple statsd middleware for rack.

Automatically compile Thrift definitions in Ruby

Thron APIs ruby client

Throttle your local bandwidth with IPFW on OSX

A simple way to create thumbnails.