| 1 | 12 | 3 | json | This is a JSON implementation as a Ruby extension in C. |
| 2 | 43 | 23 | rexml | An XML toolkit for Ruby |
| 3 | 94 | 103 | msgpack | MessagePack is a binary-based efficient object serialization library. It enables to exc... |
| 4 | 109 | 83 | webrick | WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy se... |
| 5 | 112 | 6 | base64 | Support for encoding and decoding binary data using a Base64 representation. |
| 6 | 152 | 63 | net-imap | Ruby client api for Internet Message Access Protocol |
| 7 | 158 | 8 | logger | Provides a simple logging utility for outputting messages. |
| 8 | 204 | 96 | net-protocol | The abstract interface for net-* client. |
| 9 | 207 | 54 | date | The official date library for Ruby. |
| 10 | 232 | 48 | drb | Distributed object system for Ruby |
| 11 | 263 | 92 | irb | Interactive Ruby command-line tool for REPL (Read Eval Print Loop). |
| 12 | 292 | 40 | securerandom | Interface for secure random number generator. |
| 13 | 303 | 104 | mutex_m | Mixin to extend objects to be handled like a Mutex. |
| 14 | 313 | 91 | stringio | Pseudo `IO` class from/to `String`. |
| 15 | 321 | 201 | matrix | An implementation of Matrix and Vector classes. |
| 16 | 332 | 113 | net-http | HTTP client api for Ruby. |
| 17 | 335 | 93 | csv | The CSV library provides a complete interface to CSV files and data. It offers tools to... |
| 18 | 470 | 99 | ostruct | Class to build custom data structures, similar to a Hash. |
| 19 | 486 | 249 | optparse | OptionParser is a class for command-line option analysis. It is much more
advanced, ye... |
| 20 | 493 | 218 | debug | Debugging functionality for Ruby. This is completely rewritten debug.rb which was conta... |
| 21 | 532 | 341 | strscan | Provides lexical scanning operations on a String. |
| 22 | 538 | 111 | pp | Provides a PrettyPrinter for Ruby objects |
| 23 | 553 | 228 | nkf | Ruby extension for Network Kanji Filter |
| 24 | 703 | 328 | openssl | OpenSSL for Ruby provides access to SSL/TLS and general-purpose cryptography based on t... |
| 25 | 719 | 129 | prettyprint | Implements a pretty printing algorithm for readable structure. |
| 26 | 776 | 1,894 | json_pure | This is a JSON implementation in pure Ruby. |
| 27 | 782 | 107 | erb | An easy to use but powerful templating system for Ruby. |
| 28 | 820 | 780 | sigdump | Setup signal handler which dumps backtrace of running threads and number of allocated o... |
| 29 | 838 | 771 | sync | A module that provides a two-phase lock with a counter. |
| 30 | 1,013 | 512 | set | Provides a class to deal with collections of unordered, unique values |
| 31 | 1,015 | 1,280 | e2mmap | Module for defining custom exceptions with specific messages. |
| 32 | 1,312 | 127 | tsort | Topological sorting using Tarjan's algorithm |
| 33 | 1,524 | 1,792 | thwait | Watches for termination of multiple threads. |
| 34 | 1,541 | 1,565 | digest | Provides a framework for message digest libraries. |
| 35 | 1,574 | 895 | net-ftp | Support for the File Transfer Protocol. |
| 36 | 1,708 | 1,108 | forwardable | Provides delegation of specified methods to a designated object. |
| 37 | 1,750 | 699 | zlib | Ruby interface for the zlib compression/decompression library |
| 38 | 1,785 | 2,242 | strptime | a fast strptime/strftime engine which uses VM. |
| 39 | 1,802 | 1,511 | rss | Family of libraries that support various formats of XML "feeds". |
| 40 | 1,807 | 714 | time | Extends the Time class with methods for parsing and conversion. |
| 41 | 1,813 | 1,587 | fileutils | Several file utility methods for copying, moving, removing, etc. |
| 42 | 1,862 | 667 | fiddle | A libffi wrapper for Ruby. |
| 43 | 1,889 | 395 | abbrev | Calculates a set of unique abbreviations for a given set of strings |
| 44 | 1,893 | 2,032 | iconv | iconv wrapper library |
| 45 | 2,324 | 604 | syslog | Ruby interface for the POSIX system logging facility. |
| 46 | 2,350 | 1,681 | resolv | Thread-aware DNS resolver library in Ruby. |
| 47 | 2,444 | 1,707 | io-wait | Waits until IO is readable or writable without blocking. |
| 48 | 2,452 | 1,878 | scanf | scanf is an implementation of the C function scanf(3). |
| 49 | 2,495 | 1,819 | resolv-replace | Replace Socket DNS with Resolv. |
| 50 | 2,589 | 3,225 | english | Require 'English.rb' to reference global variables with less cryptic names. |
| 51 | 3,015 | 3,637 | did_you_mean | The gem that has been saving people from typos since 2014. |
| 52 | 3,067 | 2,801 | rinda | The Linda distributed computing paradigm in Ruby. |
| 53 | 3,222 | 2,098 | open-uri | An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. |
| 54 | 3,281 | 2,146 | tempfile | A utility class for managing temporary files. |
| 55 | 3,729 | 4,758 | td-client | Treasure Data API library for Ruby |
| 56 | 3,793 | 3,435 | etc | Provides access to information typically stored in UNIX /etc directory. |
| 57 | 4,210 | 2,202 | win32ole | Provides an interface for OLE Automation in Ruby |
| 58 | 4,211 | 2,709 | shellwords | Manipulates strings with word parsing rules of UNIX Bourne shell. |
| 59 | 5,079 | 5,271 | td-logger | Treasure Data logging library |
| 60 | 5,150 | 8,792 | td | CLI to manage data on Treasure Data, the Hadoop-based cloud data warehousing |
| 61 | 5,358 | 5,763 | shell | An idiomatic Ruby interface for common UNIX shell commands. |
| 62 | 5,365 | 3,802 | pathname | Representation of the name of a file or directory on the filesystem |
| 63 | 6,024 | 5,098 | fcntl | Loads constants defined in the OS fcntl.h C header file |
| 64 | 6,598 | 9,653 | dbm | Provides a wrapper for the UNIX-style Database Manager Library |
| 65 | 6,609 | 4,914 | cmath | CMath is a library that provides trigonometric and transcendental functions for complex... |
| 66 | 6,740 | 4,840 | tmpdir | Extends the Dir class to manage the OS temporary file path. |
| 67 | 7,368 | 3,981 | weakref | Allows a referenced object to be garbage-collected. |
| 68 | 7,399 | 4,418 | find | This module supports top-down traversal of a set of file paths. |
| 69 | 7,692 | 4,783 | un | Utilities to replace common UNIX commands |
| 70 | 8,266 | 6,390 | io-nonblock | Enables non-blocking mode with IO class |
| 71 | 9,057 | 11,270 | gdbm | Ruby extension for GNU dbm. |
| 72 | 10,111 | 19,626 | perfectqueue | Highly available distributed cron built on RDBMS |
| 73 | 10,558 | 8,494 | sdbm | Provides a simple file-based key-value store with String keys and values. |
| 74 | 13,167 | 13,185 | ext_monitor | faster MonitorMixin implementation with C extension which is introduced in Ruby 2.7 |
| 75 | 15,333 | 18,660 | fluent-plugin-metricsense | MetricSense - application metrics aggregation plugin for Fluentd |
| 76 | 17,623 | 29,669 | perfectsched | Highly available distributed cron built on RDBMS |
| 77 | 50,139 | 15,142 | lrama | LALR (1) parser generator written by Ruby |
| 78 | 68,246 | 59,666 | traceroute53 | A tool to investigate Route53, ELB, EC2 and Security Groups |
| 79 | 153,787 | 59,666 | gohttp | an http library with go. |
| 80 | 163,534 | 59,666 | laplace | fast method tracing |
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