| 1 | 18 | 7 | json | This is a JSON implementation as a Ruby extension in C. |
| 2 | 69 | 12 | rexml | An XML toolkit for Ruby |
| 3 | 101 | 87 | msgpack | MessagePack is a binary-based efficient object serialization library. It enables to exc... |
| 4 | 126 | 61 | webrick | WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy se... |
| 5 | 245 | 70 | net-imap | Ruby client api for Internet Message Access Protocol |
| 6 | 315 | 99 | net-protocol | The abstract interface for net-* client. |
| 7 | 389 | 38 | base64 | Support for encoding and decoding binary data using a Base64 representation. |
| 8 | 412 | 128 | date | A subclass of Object includes Comparable module for handling dates. |
| 9 | 488 | 187 | matrix | An implementation of Matrix and Vector classes. |
| 10 | 704 | 1,343 | json_pure | This is a JSON implementation in pure Ruby. |
| 11 | 732 | 169 | irb | Interactive Ruby command-line tool for REPL (Read Eval Print Loop). |
| 12 | 768 | 221 | strscan | Provides lexical scanning operations on a String. |
| 13 | 775 | 269 | optparse | OptionParser is a class for command-line option analysis. |
| 14 | 845 | 589 | sigdump | Setup signal handler which dumps backtrace of running threads and number of allocated o... |
| 15 | 850 | 424 | openssl | OpenSSL for Ruby provides access to SSL/TLS and general-purpose cryptography based on t... |
| 16 | 905 | 441 | sync | A module that provides a two-phase lock with a counter. |
| 17 | 908 | 134 | drb | Distributed object system for Ruby |
| 18 | 909 | 282 | debug | Debugging functionality for Ruby. This is completely rewritten debug.rb which was conta... |
| 19 | 985 | 892 | e2mmap | Module for defining custom exceptions with specific messages. |
| 20 | 1,011 | 204 | stringio | Pseudo `IO` class from/to `String`. |
| 21 | 1,070 | 212 | csv | The CSV library provides a complete interface to CSV files and data. It offers tools to... |
| 22 | 1,075 | 273 | net-http | HTTP client api for Ruby. |
| 23 | 1,102 | 911 | set | Provides a class to deal with collections of unordered, unique values |
| 24 | 1,123 | 251 | mutex_m | Mixin to extend objects to be handled like a Mutex. |
| 25 | 1,137 | 97 | logger | Provides a simple logging utility for outputting messages. |
| 26 | 1,387 | 1,647 | thwait | Watches for termination of multiple threads. |
| 27 | 1,429 | 235 | nkf | Ruby extension for Network Kanji Filter |
| 28 | 1,568 | 1,486 | digest | Provides a framework for message digest libraries. |
| 29 | 1,615 | 2,104 | strptime | a fast strptime/strftime engine which uses VM. |
| 30 | 1,717 | 2,157 | iconv | iconv wrapper library |
| 31 | 1,781 | 1,301 | net-ftp | Support for the File Transfer Protocol. |
| 32 | 1,846 | 1,755 | cool.io | Cool.io provides a high performance event framework for Ruby which uses the libev C lib... |
| 33 | 1,847 | 1,546 | fileutils | Several file utility methods for copying, moving, removing, etc. |
| 34 | 1,886 | 1,751 | rss | Family of libraries that support various formats of XML "feeds". |
| 35 | 2,028 | 1,585 | forwardable | Provides delegation of specified methods to a designated object. |
| 36 | 2,190 | 311 | securerandom | Interface for secure random number generator. |
| 37 | 2,326 | 3,298 | english | Require 'English.rb' to reference global variables with less cryptic names. |
| 38 | 2,332 | 1,298 | zlib | Ruby interface for the zlib compression/decompression library |
| 39 | 2,343 | 1,305 | time | Extends the Time class with methods for parsing and conversion. |
| 40 | 2,658 | 2,279 | io-wait | Waits until IO is readable or writable without blocking. |
| 41 | 2,684 | 2,106 | scanf | scanf is an implementation of the C function scanf(3). |
| 42 | 2,726 | 5,386 | did_you_mean | The gem that has been saving people from typos since 2014. |
| 43 | 2,881 | 1,553 | erb | An easy to use but powerful templating system for Ruby. |
| 44 | 2,946 | 575 | ostruct | Class to build custom data structures, similar to a Hash. |
| 45 | 2,968 | 1,925 | resolv | Thread-aware DNS resolver library in Ruby. |
| 46 | 3,086 | 1,400 | fiddle | A libffi wrapper for Ruby. |
| 47 | 3,377 | 4,229 | td-client | Treasure Data API library for Ruby |
| 48 | 3,398 | 1,956 | abbrev | Calculates a set of unique abbreviations for a given set of strings |
| 49 | 3,511 | 2,028 | resolv-replace | Replace Socket DNS with Resolv. |
| 50 | 3,831 | 3,594 | etc | Provides access to information typically stored in UNIX /etc directory. |
| 51 | 3,856 | 2,319 | tempfile | A utility class for managing temporary files. |
| 52 | 3,989 | 2,233 | syslog | Ruby interface for the POSIX system logging facility. |
| 53 | 4,014 | 2,421 | open-uri | An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. |
| 54 | 4,055 | 2,564 | rinda | The Linda distributed computing paradigm in Ruby. |
| 55 | 4,704 | 4,760 | td | CLI to manage data on Treasure Data, the Hadoop-based cloud data warehousing |
| 56 | 4,723 | 4,791 | td-logger | Treasure Data logging library |
| 57 | 5,000 | 5,903 | shell | An idiomatic Ruby interface for common UNIX shell commands. |
| 58 | 5,308 | 2,955 | shellwords | Manipulates strings with word parsing rules of UNIX Bourne shell. |
| 59 | 5,746 | 3,740 | tsort | Topological sorting using Tarjan's algorithm |
| 60 | 6,161 | 3,879 | pathname | Representation of the name of a file or directory on the filesystem |
| 61 | 6,235 | 8,756 | dbm | Provides a wrapper for the UNIX-style Database Manager Library |
| 62 | 6,383 | 5,330 | fcntl | Loads constants defined in the OS fcntl.h C header file |
| 63 | 6,666 | 4,970 | pp | Provides a PrettyPrinter for Ruby objects |
| 64 | 7,012 | 4,827 | prettyprint | Implements a pretty printing algorithm for readable structure. |
| 65 | 8,342 | 11,851 | gdbm | Ruby extension for GNU dbm. |
| 66 | 8,355 | 5,547 | cmath | CMath is a library that provides trigonometric and transcendental functions for complex... |
| 67 | 8,459 | 4,701 | tmpdir | Extends the Dir class to manage the OS temporary file path. |
| 68 | 8,496 | 6,056 | un | Utilities to replace common UNIX commands |
| 69 | 9,009 | 5,733 | find | This module supports top-down traversal of a set of file paths. |
| 70 | 9,254 | 21,757 | perfectqueue | Highly available distributed cron built on RDBMS |
| 71 | 9,467 | 6,084 | weakref | Allows a referenced object to be garbage-collected. |
| 72 | 10,376 | 6,132 | io-nonblock | Enables non-blocking mode with IO class |
| 73 | 11,742 | 30,355 | ext_monitor | faster MonitorMixin implementation with C extension which is introduced in Ruby 2.7 |
| 74 | 13,859 | 6,952 | sdbm | Provides a simple file-based key-value store with String keys and values. |
| 75 | 14,421 | 48,717 | fluent-plugin-metricsense | MetricSense - application metrics aggregation plugin for Fluentd |
| 76 | 16,566 | 85,057 | perfectsched | Highly available distributed cron built on RDBMS |
| 77 | 24,255 | 8,288 | win32ole | Provides an interface for OLE Automation in Ruby |
| 78 | 74,136 | 26,429 | traceroute53 | A tool to investigate Route53, ELB, EC2 and Security Groups |
| 79 | 74,815 | 26,429 | lrama | LALR (1) parser generator written by Ruby |
| 80 | 155,964 | 85,057 | gohttp | an http library with go. |
| 81 | 163,188 | 85,057 | laplace | fast method tracing |
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