Xlib ruby toolkit

https://rubygems.org/gems/uh

Wrapper library to bring Unicode Normalization Form support

https://github.com/knu/ruby-unf

Unicode string manipulation library for Ruby

https://github.com/blackwinter/unicode

Get the display size of a string

https://github.com/janlelis/unicode-display_width

Provide Unicode Emoji data and regexes

https://github.com/janlelis/unicode-emoji

Ruby client for Unleash

https://github.com/unleash/unleash-client-ruby

Provide classes to handle Uniform Resource Identifiers

https://github.com/ruby/uri

Provide classes to handle Uniform Resource Identifiers

https://github.com/ruby/uri

Support for parsing Redis URIs like redis://host:port/dbindex

https://github.com/delano/uri-valkey

Templating system for URIs

https://github.com/hannesg/uri_template

Glue to allow mounted rack applications to know where they're mounted

https://github.com/hassox/url_mount

HTTP User Agent parser

https://github.com/gshutler/useragent

UUID generator library

https://github.com/assaf/uuid

Simple universally unique ID generation library

https://github.com/sporkmonger/uuidtools

Standalone, generic object validator for ruby

https://github.com/zombor/Validator

Library for adding database/object validations

http://validatable.rubyforge.org/

Validating email addresses in Rails 3 models

https://github.com/perfectline/validates_email/tree/master

Validating urls in Rails

https://github.com/perfectline/validates_url/tree/master

Add validation methods to ActiveModel for validating dates and times

https://github.com/adzap/validates_timeliness

Introspectable Version module

https://gitlab.com/oauth-xx/version_gem

Fast sorting of version strings

https://github.com/github/version_sorter

View components for Rails

https://github.com/github/view_component

Library to gather memory, cpu, network, load avg and disk information

https://threez.github.io/ruby-vmstat/

Adds custom processing for warnings

https://github.com/jeremyevans/ruby-warning

Debugging tool for your Ruby on Rails applications

https://github.com/rails/web-console

WebFinger client library

https://github.com/nov/webfinger

HTTP server toolkit

https://github.com/ruby/webrick

WebSocket protocol handler with pluggable I/O

https://github.com/faye/websocket-driver-ruby

Generic extension manager for WebSocket connections

https://github.com/faye/websocket-extensions-ruby

Ruby whois library

https://whoisrb.org/ https://github.com/weppos/whois

Provides a way to look up Windows NTSTATUS and Win32 Error Codes

https://github.com/rapid7/windows_error

Library for Windows Remote Management

https://github.com/WinRb/WinRM

Library for Ruby objects with Publish-Subscribe capabilities

https://github.com/krisleech/wisper

Execute code with env variables

https://github.com/mhs/with_env-rb

Lightweight utility over win32ole for accessing basic WMI

https://github.com/opscode/wmi-lite

Ruby interface to the X API

https://sferik.github.io/x-ruby/ https://github.com/sferik/x-ruby

Ruby take off of p5-XML-Simple

https://github.com/maik/xml-simple

Ruby take off of p5-XML-Simple

https://github.com/maik/xml-simple

Ruby standard library package 'xmlrpc'

https://github.com/ruby/xmlrpc

Streaming JSON parsing and encoding library for Ruby

https://github.com/brianmario/yajl-ruby

Efficient and thread-safe code loader

https://github.com/fxn/zeitwerk

Ruby Unit Testing Utility

https://github.com/seattlerb/zentest

Fast program launch menu for X Window System

http://www.boomerangsworld.de/cms/tools/runner.html

Restricted User SHell, providing limited remote access to resources

https://puszcza.gnu.org.ua/software/rush/

Language with a focus on memory safety and concurrency

https://www.rust-lang.org/

Experimental Rust compiler front-end for IDEs

https://rust-analyzer.github.io/

Language with a focus on memory safety and concurrency (FreeBSD version)

https://www.rust-lang.org/

Generate Rust bindings from C (and some C++) code

https://github.com/rust-lang/rust-bindgen

Generate C bindings from Rust code

https://github.com/mozilla/cbindgen

Language with a focus on memory safety and concurrency

https://www.rust-lang.org/