| 1 | 12 | 2 | json | A JSON implementation as a JRuby extension. |
| 2 | 43 | 24 | rexml | An XML toolkit for Ruby |
| 3 | 94 | 107 | msgpack | MessagePack is a binary-based efficient object serialization library. It enables to exc... |
| 4 | 110 | 68 | webrick | WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy se... |
| 5 | 113 | 8 | base64 | Support for encoding and decoding binary data using a Base64 representation. |
| 6 | 158 | 74 | net-imap | Ruby client api for Internet Message Access Protocol |
| 7 | 169 | 16 | logger | Provides a simple logging utility for outputting messages. |
| 8 | 206 | 104 | net-protocol | The abstract interface for net-* client. |
| 9 | 209 | 63 | date | The official date library for Ruby. |
| 10 | 251 | 60 | drb | Distributed object system for Ruby |
| 11 | 275 | 95 | irb | Interactive Ruby command-line tool for REPL (Read Eval Print Loop). |
| 12 | 312 | 49 | securerandom | Interface for secure random number generator. |
| 13 | 316 | 114 | mutex_m | Mixin to extend objects to be handled like a Mutex. |
| 14 | 324 | 168 | matrix | An implementation of Matrix and Vector classes. |
| 15 | 328 | 111 | stringio | Pseudo `IO` class from/to `String`. |
| 16 | 347 | 103 | net-http | HTTP client api for Ruby. |
| 17 | 352 | 98 | csv | The CSV library provides a complete interface to CSV files and data. It offers tools to... |
| 18 | 498 | 271 | optparse | OptionParser is a class for command-line option analysis. It is much more
advanced, ye... |
| 19 | 508 | 246 | debug | Debugging functionality for Ruby. This is completely rewritten debug.rb which was conta... |
| 20 | 526 | 122 | ostruct | Class to build custom data structures, similar to a Hash. |
| 21 | 546 | 362 | strscan | Provides lexical scanning operations on a String. |
| 22 | 610 | 240 | nkf | Ruby extension for Network Kanji Filter |
| 23 | 674 | 130 | pp | Provides a PrettyPrinter for Ruby objects |
| 24 | 716 | 311 | openssl | OpenSSL for Ruby provides access to SSL/TLS and general-purpose cryptography based on t... |
| 25 | 768 | 1,808 | json_pure | This is a JSON implementation in pure Ruby. |
| 26 | 792 | 146 | prettyprint | Implements a pretty printing algorithm for readable structure. |
| 27 | 819 | 855 | sigdump | Setup signal handler which dumps backtrace of running threads and number of allocated o... |
| 28 | 838 | 774 | sync | A module that provides a two-phase lock with a counter. |
| 29 | 869 | 112 | erb | An easy to use but powerful templating system for Ruby. |
| 30 | 1,011 | 763 | e2mmap | Module for defining custom exceptions with specific messages. |
| 31 | 1,022 | 564 | set | Provides a class to deal with collections of unordered, unique values |
| 32 | 1,518 | 1,721 | thwait | Watches for termination of multiple threads. |
| 33 | 1,539 | 1,382 | digest | Provides a framework for message digest libraries. |
| 34 | 1,561 | 164 | tsort | Topological sorting using Tarjan's algorithm |
| 35 | 1,588 | 1,311 | net-ftp | Support for the File Transfer Protocol. |
| 36 | 1,720 | 1,054 | forwardable | Provides delegation of specified methods to a designated object. |
| 37 | 1,773 | 2,568 | strptime | a fast strptime/strftime engine which uses VM. |
| 38 | 1,803 | 665 | zlib | Ruby interface for the zlib compression/decompression library |
| 39 | 1,821 | 1,454 | fileutils | Several file utility methods for copying, moving, removing, etc. |
| 40 | 1,831 | 1,409 | rss | Family of libraries that support various formats of XML "feeds". |
| 41 | 1,858 | 866 | time | Extends the Time class with methods for parsing and conversion. |
| 42 | 1,882 | 2,359 | iconv | iconv wrapper library |
| 43 | 1,934 | 585 | fiddle | A libffi wrapper for Ruby. |
| 44 | 1,996 | 482 | abbrev | Calculates a set of unique abbreviations for a given set of strings |
| 45 | 2,029 | 2,634 | cool.io | Cool.io provides a high performance event framework for Ruby which uses the libev C lib... |
| 46 | 2,392 | 1,587 | resolv | Thread-aware DNS resolver library in Ruby. |
| 47 | 2,461 | 2,255 | io-wait | Waits until IO is readable or writable without blocking. |
| 48 | 2,480 | 1,944 | scanf | scanf is an implementation of the C function scanf(3). |
| 49 | 2,489 | 938 | syslog | Ruby interface for the POSIX system logging facility. |
| 50 | 2,578 | 2,529 | english | Require 'English.rb' to reference global variables with less cryptic names. |
| 51 | 2,606 | 1,731 | resolv-replace | Replace Socket DNS with Resolv. |
| 52 | 3,002 | 4,068 | did_you_mean | The gem that has been saving people from typos since 2014. |
| 53 | 3,122 | 2,883 | rinda | The Linda distributed computing paradigm in Ruby. |
| 54 | 3,267 | 2,239 | open-uri | An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. |
| 55 | 3,301 | 2,541 | tempfile | A utility class for managing temporary files. |
| 56 | 3,691 | 6,052 | td-client | Treasure Data API library for Ruby |
| 57 | 3,796 | 3,094 | etc | Provides access to information typically stored in UNIX /etc directory. |
| 58 | 4,260 | 2,773 | shellwords | Manipulates strings with word parsing rules of UNIX Bourne shell. |
| 59 | 4,612 | 2,062 | win32ole | Provides an interface for OLE Automation in Ruby |
| 60 | 5,050 | 6,729 | td-logger | Treasure Data logging library |
| 61 | 5,109 | 9,511 | td | CLI to manage data on Treasure Data, the Hadoop-based cloud data warehousing |
| 62 | 5,319 | 6,707 | shell | An idiomatic Ruby interface for common UNIX shell commands. |
| 63 | 5,383 | 4,628 | pathname | Representation of the name of a file or directory on the filesystem |
| 64 | 6,013 | 5,840 | fcntl | Loads constants defined in the OS fcntl.h C header file |
| 65 | 6,562 | 8,534 | dbm | Provides a wrapper for the UNIX-style Database Manager Library |
| 66 | 6,647 | 5,174 | cmath | CMath is a library that provides trigonometric and transcendental functions for complex... |
| 67 | 6,836 | 3,700 | tmpdir | Extends the Dir class to manage the OS temporary file path. |
| 68 | 7,470 | 5,552 | weakref | Allows a referenced object to be garbage-collected. |
| 69 | 7,495 | 5,628 | find | This module supports top-down traversal of a set of file paths. |
| 70 | 7,707 | 6,558 | un | Utilities to replace common UNIX commands |
| 71 | 8,294 | 6,619 | io-nonblock | Enables non-blocking mode with IO class |
| 72 | 8,995 | 9,511 | gdbm | Ruby extension for GNU dbm. |
| 73 | 10,009 | 20,855 | perfectqueue | Highly available distributed cron built on RDBMS |
| 74 | 10,617 | 6,006 | sdbm | Provides a simple file-based key-value store with String keys and values. |
| 75 | 13,046 | 51,002 | ext_monitor | faster MonitorMixin implementation with C extension which is introduced in Ruby 2.7 |
| 76 | 15,210 | 14,323 | fluent-plugin-metricsense | MetricSense - application metrics aggregation plugin for Fluentd |
| 77 | 17,429 | 16,523 | perfectsched | Highly available distributed cron built on RDBMS |
| 78 | 50,717 | 13,561 | lrama | LALR (1) parser generator written by Ruby |
| 79 | 68,120 | 39,990 | traceroute53 | A tool to investigate Route53, ELB, EC2 and Security Groups |
| 80 | 153,916 | 39,990 | gohttp | an http library with go. |
| 81 | 163,326 | 74,401 | laplace | fast method tracing |
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