| 1 | 14 | 5 | json | This is a JSON implementation as a Ruby extension in C. |
| 2 | 57 | 13 | rexml | An XML toolkit for Ruby |
| 3 | 98 | 115 | msgpack | MessagePack is a binary-based efficient object serialization library. It enables to exc... |
| 4 | 115 | 95 | webrick | WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy se... |
| 5 | 205 | 89 | net-imap | Ruby client api for Internet Message Access Protocol |
| 6 | 241 | 21 | base64 | Support for encoding and decoding binary data using a Base64 representation. |
| 7 | 271 | 110 | net-protocol | The abstract interface for net-* client. |
| 8 | 310 | 93 | date | A subclass of Object includes Comparable module for handling dates. |
| 9 | 410 | 222 | matrix | An implementation of Matrix and Vector classes. |
| 10 | 457 | 24 | logger | Provides a simple logging utility for outputting messages. |
| 11 | 469 | 109 | irb | Interactive Ruby command-line tool for REPL (Read Eval Print Loop). |
| 12 | 565 | 94 | drb | Distributed object system for Ruby |
| 13 | 703 | 276 | optparse | OptionParser is a class for command-line option analysis. |
| 14 | 708 | 333 | strscan | Provides lexical scanning operations on a String. |
| 15 | 734 | 1,062 | json_pure | This is a JSON implementation in pure Ruby. |
| 16 | 758 | 157 | stringio | Pseudo `IO` class from/to `String`. |
| 17 | 767 | 130 | net-http | HTTP client api for Ruby. |
| 18 | 782 | 138 | csv | The CSV library provides a complete interface to CSV files and data. It offers tools to... |
| 19 | 794 | 99 | mutex_m | Mixin to extend objects to be handled like a Mutex. |
| 20 | 808 | 336 | debug | Debugging functionality for Ruby. This is completely rewritten debug.rb which was conta... |
| 21 | 813 | 418 | openssl | OpenSSL for Ruby provides access to SSL/TLS and general-purpose cryptography based on t... |
| 22 | 834 | 536 | sigdump | Setup signal handler which dumps backtrace of running threads and number of allocated o... |
| 23 | 850 | 454 | sync | A module that provides a two-phase lock with a counter. |
| 24 | 1,001 | 1,097 | e2mmap | Module for defining custom exceptions with specific messages. |
| 25 | 1,012 | 179 | nkf | Ruby extension for Network Kanji Filter |
| 26 | 1,055 | 81 | securerandom | Interface for secure random number generator. |
| 27 | 1,086 | 896 | set | Provides a class to deal with collections of unordered, unique values |
| 28 | 1,444 | 1,736 | thwait | Watches for termination of multiple threads. |
| 29 | 1,485 | 178 | ostruct | Class to build custom data structures, similar to a Hash. |
| 30 | 1,559 | 1,304 | digest | Provides a framework for message digest libraries. |
| 31 | 1,671 | 2,175 | strptime | a fast strptime/strftime engine which uses VM. |
| 32 | 1,729 | 1,348 | net-ftp | Support for the File Transfer Protocol. |
| 33 | 1,773 | 2,021 | iconv | iconv wrapper library |
| 34 | 1,819 | 1,500 | fileutils | Several file utility methods for copying, moving, removing, etc. |
| 35 | 1,838 | 1,572 | rss | Family of libraries that support various formats of XML "feeds". |
| 36 | 1,899 | 2,391 | cool.io | Cool.io provides a high performance event framework for Ruby which uses the libev C lib... |
| 37 | 1,958 | 685 | forwardable | Provides delegation of specified methods to a designated object. |
| 38 | 2,056 | 1,303 | zlib | Ruby interface for the zlib compression/decompression library |
| 39 | 2,068 | 168 | pp | Provides a PrettyPrinter for Ruby objects |
| 40 | 2,089 | 1,072 | time | Extends the Time class with methods for parsing and conversion. |
| 41 | 2,405 | 287 | prettyprint | Implements a pretty printing algorithm for readable structure. |
| 42 | 2,406 | 3,473 | english | Require 'English.rb' to reference global variables with less cryptic names. |
| 43 | 2,589 | 1,574 | erb | An easy to use but powerful templating system for Ruby. |
| 44 | 2,630 | 2,168 | io-wait | Waits until IO is readable or writable without blocking. |
| 45 | 2,636 | 1,924 | scanf | scanf is an implementation of the C function scanf(3). |
| 46 | 2,680 | 1,708 | fiddle | A libffi wrapper for Ruby. |
| 47 | 2,789 | 1,757 | resolv | Thread-aware DNS resolver library in Ruby. |
| 48 | 2,819 | 4,265 | did_you_mean | The gem that has been saving people from typos since 2014. |
| 49 | 3,001 | 1,690 | abbrev | Calculates a set of unique abbreviations for a given set of strings |
| 50 | 3,138 | 2,010 | resolv-replace | Replace Socket DNS with Resolv. |
| 51 | 3,486 | 1,943 | syslog | Ruby interface for the POSIX system logging facility. |
| 52 | 3,495 | 5,924 | td-client | Treasure Data API library for Ruby |
| 53 | 3,617 | 2,173 | tempfile | A utility class for managing temporary files. |
| 54 | 3,653 | 3,075 | rinda | The Linda distributed computing paradigm in Ruby. |
| 55 | 3,803 | 3,081 | etc | Provides access to information typically stored in UNIX /etc directory. |
| 56 | 3,814 | 2,165 | open-uri | An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. |
| 57 | 4,821 | 2,622 | shellwords | Manipulates strings with word parsing rules of UNIX Bourne shell. |
| 58 | 4,843 | 7,052 | td-logger | Treasure Data logging library |
| 59 | 4,845 | 9,032 | td | CLI to manage data on Treasure Data, the Hadoop-based cloud data warehousing |
| 60 | 5,121 | 5,975 | shell | An idiomatic Ruby interface for common UNIX shell commands. |
| 61 | 5,419 | 3,092 | tsort | Topological sorting using Tarjan's algorithm |
| 62 | 5,763 | 3,193 | pathname | Representation of the name of a file or directory on the filesystem |
| 63 | 6,193 | 5,055 | fcntl | Loads constants defined in the OS fcntl.h C header file |
| 64 | 6,322 | 6,320 | dbm | Provides a wrapper for the UNIX-style Database Manager Library |
| 65 | 7,857 | 4,879 | tmpdir | Extends the Dir class to manage the OS temporary file path. |
| 66 | 7,971 | 3,111 | cmath | CMath is a library that provides trigonometric and transcendental functions for complex... |
| 67 | 8,143 | 6,097 | un | Utilities to replace common UNIX commands |
| 68 | 8,326 | 5,568 | find | This module supports top-down traversal of a set of file paths. |
| 69 | 8,579 | 11,769 | gdbm | Ruby extension for GNU dbm. |
| 70 | 8,821 | 6,079 | weakref | Allows a referenced object to be garbage-collected. |
| 71 | 9,332 | 4,037 | win32ole | Provides an interface for OLE Automation in Ruby |
| 72 | 9,348 | 5,375 | io-nonblock | Enables non-blocking mode with IO class |
| 73 | 9,519 | 16,876 | perfectqueue | Highly available distributed cron built on RDBMS |
| 74 | 12,157 | 36,886 | ext_monitor | faster MonitorMixin implementation with C extension which is introduced in Ruby 2.7 |
| 75 | 12,804 | 6,927 | sdbm | Provides a simple file-based key-value store with String keys and values. |
| 76 | 14,753 | 13,604 | fluent-plugin-metricsense | MetricSense - application metrics aggregation plugin for Fluentd |
| 77 | 16,903 | 27,202 | perfectsched | Highly available distributed cron built on RDBMS |
| 78 | 66,939 | 24,250 | lrama | LALR (1) parser generator written by Ruby |
| 79 | 73,941 | 36,886 | traceroute53 | A tool to investigate Route53, ELB, EC2 and Security Groups |
| 80 | 156,797 | 36,886 | gohttp | an http library with go. |
| 81 | 163,919 | 36,886 | laplace | fast method tracing |
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