| 1 | 12 | 4 | json | This is a JSON implementation as a Ruby extension in C. |
| 2 | 45 | 26 | rexml | An XML toolkit for Ruby |
| 3 | 94 | 110 | msgpack | MessagePack is a binary-based efficient object serialization library. It enables to exc... |
| 4 | 110 | 67 | webrick | WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy se... |
| 5 | 118 | 7 | base64 | Support for encoding and decoding binary data using a Base64 representation. |
| 6 | 159 | 68 | net-imap | Ruby client api for Internet Message Access Protocol |
| 7 | 178 | 16 | logger | Provides a simple logging utility for outputting messages. |
| 8 | 207 | 109 | net-protocol | The abstract interface for net-* client. |
| 9 | 214 | 64 | date | The official date library for Ruby. |
| 10 | 261 | 66 | drb | Distributed object system for Ruby |
| 11 | 281 | 84 | irb | Interactive Ruby command-line tool for REPL (Read Eval Print Loop). |
| 12 | 321 | 48 | securerandom | Interface for secure random number generator. |
| 13 | 322 | 111 | mutex_m | Mixin to extend objects to be handled like a Mutex. |
| 14 | 328 | 196 | matrix | An implementation of Matrix and Vector classes. |
| 15 | 331 | 104 | stringio | Pseudo `IO` class from/to `String`. |
| 16 | 360 | 117 | net-http | HTTP client api for Ruby. |
| 17 | 368 | 101 | csv | The CSV library provides a complete interface to CSV files and data. It offers tools to... |
| 18 | 504 | 263 | optparse | OptionParser is a class for command-line option analysis. It is much more
advanced, ye... |
| 19 | 520 | 225 | debug | Debugging functionality for Ruby. This is completely rewritten debug.rb which was conta... |
| 20 | 557 | 357 | strscan | Provides lexical scanning operations on a String. |
| 21 | 568 | 118 | ostruct | Class to build custom data structures, similar to a Hash. |
| 22 | 657 | 227 | nkf | Ruby extension for Network Kanji Filter |
| 23 | 710 | 126 | pp | Provides a PrettyPrinter for Ruby objects |
| 24 | 726 | 277 | openssl | OpenSSL for Ruby provides access to SSL/TLS and general-purpose cryptography based on t... |
| 25 | 766 | 2,074 | json_pure | This is a JSON implementation in pure Ruby. |
| 26 | 817 | 1,061 | sigdump | Setup signal handler which dumps backtrace of running threads and number of allocated o... |
| 27 | 831 | 141 | prettyprint | Implements a pretty printing algorithm for readable structure. |
| 28 | 838 | 714 | sync | A module that provides a two-phase lock with a counter. |
| 29 | 901 | 146 | erb | An easy to use but powerful templating system for Ruby. |
| 30 | 1,010 | 1,238 | e2mmap | Module for defining custom exceptions with specific messages. |
| 31 | 1,028 | 592 | set | Provides a class to deal with collections of unordered, unique values |
| 32 | 1,516 | 1,681 | thwait | Watches for termination of multiple threads. |
| 33 | 1,536 | 1,500 | digest | Provides a framework for message digest libraries. |
| 34 | 1,593 | 1,195 | net-ftp | Support for the File Transfer Protocol. |
| 35 | 1,686 | 176 | tsort | Topological sorting using Tarjan's algorithm |
| 36 | 1,731 | 1,317 | forwardable | Provides delegation of specified methods to a designated object. |
| 37 | 1,765 | 2,505 | strptime | a fast strptime/strftime engine which uses VM. |
| 38 | 1,829 | 1,430 | fileutils | Several file utility methods for copying, moving, removing, etc. |
| 39 | 1,844 | 688 | zlib | Ruby interface for the zlib compression/decompression library |
| 40 | 1,857 | 1,519 | rss | Family of libraries that support various formats of XML "feeds". |
| 41 | 1,868 | 796 | time | Extends the Time class with methods for parsing and conversion. |
| 42 | 1,879 | 2,329 | iconv | iconv wrapper library |
| 43 | 1,977 | 579 | fiddle | A libffi wrapper for Ruby. |
| 44 | 2,019 | 2,442 | cool.io | Cool.io provides a high performance event framework for Ruby which uses the libev C lib... |
| 45 | 2,071 | 469 | abbrev | Calculates a set of unique abbreviations for a given set of strings |
| 46 | 2,410 | 1,570 | resolv | Thread-aware DNS resolver library in Ruby. |
| 47 | 2,463 | 2,350 | io-wait | Waits until IO is readable or writable without blocking. |
| 48 | 2,494 | 2,037 | scanf | scanf is an implementation of the C function scanf(3). |
| 49 | 2,555 | 3,447 | english | Require 'English.rb' to reference global variables with less cryptic names. |
| 50 | 2,623 | 1,082 | syslog | Ruby interface for the POSIX system logging facility. |
| 51 | 2,686 | 1,677 | resolv-replace | Replace Socket DNS with Resolv. |
| 52 | 2,994 | 4,250 | did_you_mean | The gem that has been saving people from typos since 2014. |
| 53 | 3,211 | 2,972 | rinda | The Linda distributed computing paradigm in Ruby. |
| 54 | 3,286 | 2,170 | open-uri | An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. |
| 55 | 3,316 | 2,514 | tempfile | A utility class for managing temporary files. |
| 56 | 3,682 | 5,655 | td-client | Treasure Data API library for Ruby |
| 57 | 3,797 | 3,210 | etc | Provides access to information typically stored in UNIX /etc directory. |
| 58 | 4,274 | 2,852 | shellwords | Manipulates strings with word parsing rules of UNIX Bourne shell. |
| 59 | 5,035 | 6,212 | td-logger | Treasure Data logging library |
| 60 | 5,093 | 7,789 | td | CLI to manage data on Treasure Data, the Hadoop-based cloud data warehousing |
| 61 | 5,276 | 3,998 | win32ole | Provides an interface for OLE Automation in Ruby |
| 62 | 5,308 | 5,834 | shell | An idiomatic Ruby interface for common UNIX shell commands. |
| 63 | 5,393 | 4,294 | pathname | Representation of the name of a file or directory on the filesystem |
| 64 | 6,012 | 5,565 | fcntl | Loads constants defined in the OS fcntl.h C header file |
| 65 | 6,534 | 10,114 | dbm | Provides a wrapper for the UNIX-style Database Manager Library |
| 66 | 6,663 | 4,628 | cmath | CMath is a library that provides trigonometric and transcendental functions for complex... |
| 67 | 6,973 | 3,118 | tmpdir | Extends the Dir class to manage the OS temporary file path. |
| 68 | 7,529 | 5,749 | weakref | Allows a referenced object to be garbage-collected. |
| 69 | 7,553 | 6,438 | find | This module supports top-down traversal of a set of file paths. |
| 70 | 7,723 | 7,686 | un | Utilities to replace common UNIX commands |
| 71 | 8,314 | 6,537 | io-nonblock | Enables non-blocking mode with IO class |
| 72 | 8,959 | 9,318 | gdbm | Ruby extension for GNU dbm. |
| 73 | 9,978 | 15,170 | perfectqueue | Highly available distributed cron built on RDBMS |
| 74 | 10,687 | 6,108 | sdbm | Provides a simple file-based key-value store with String keys and values. |
| 75 | 12,998 | 36,032 | ext_monitor | faster MonitorMixin implementation with C extension which is introduced in Ruby 2.7 |
| 76 | 15,179 | 13,982 | fluent-plugin-metricsense | MetricSense - application metrics aggregation plugin for Fluentd |
| 77 | 17,409 | 16,493 | perfectsched | Highly available distributed cron built on RDBMS |
| 78 | 51,649 | 20,781 | lrama | LALR (1) parser generator written by Ruby |
| 79 | 68,290 | 31,526 | traceroute53 | A tool to investigate Route53, ELB, EC2 and Security Groups |
| 80 | 154,098 | 57,531 | gohttp | an http library with go. |
| 81 | 163,203 | 43,419 | laplace | fast method tracing |