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ruby

94 indexed repositories · View on GitHub

rubygems
Library packaging and distribution for Ruby.

Ruby · 3968 stars
rake
A make-like build utility for Ruby.

Ruby · 2459 stars
rbs
The type signature language for Ruby

Ruby · 2181 stars
did_you_mean
The gem that has been saving people from typos since 2014

Ruby · 1881 stars
prism
Prism Ruby parser

C · 1033 stars
setup-ruby
An action to download a prebuilt Ruby and add it to the PATH in 5 seconds

JavaScript · 990 stars
www.ruby-lang.org
Source of the https://www.ruby-lang.org website.

HTML · 944 stars
rdoc
RDoc produces HTML and online documentation for Ruby projects.

Ruby · 930 stars
ruby.wasm
ruby.wasm is a collection of WebAssembly ports of the CRuby.

Ruby · 875 stars
typeprof
An experimental type-level Ruby interpreter for testing and understanding Ruby code

Ruby · 833 stars
json
JSON implementation for Ruby

Ruby · 782 stars
spec
The Ruby Spec Suite aka ruby/spec

Ruby · 622 stars
psych
A libyaml wrapper for Ruby

Ruby · 597 stars
racc
Racc is an LALR(1) parser generator. It is written in Ruby itself, and generates ruby programs.

Yacc · 569 stars
irb
interactive Ruby

Ruby · 478 stars
syntax_suggest
Searching for unexpected `end` syntax errors takes a lot of time. Let this gem do it for you!

Ruby · 350 stars
webrick
HTTP server toolkit

Ruby · 327 stars
lrama
Pure Ruby LALR parser generator

Ruby · 318 stars
reline
The compatible library with the API of Ruby's stdlib 'readline'

Ruby · 311 stars
gem_rbs_collection
A collection of RBS for gems.

Ruby · 303 stars
74 more repositories live on View on GitHub

Beginner friendly Everything

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Release version without io/wait require Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

ruby/io-console#173 · 1 comment · Opened Sep 17, 2026
module_function without arguments is not applied to subsequent method definitions Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ruby/rdoc#1823 · 5 comments · Opened Sep 16, 2026
Enhancement for gem env Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ruby/rubygems#9883 · 2 comments · Opened Sep 16, 2026
Wrong heading levels in generated HTML? Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ruby/rdoc#1822 · Opened Sep 15, 2026
Gracefully handle deprecation of io-wait gem Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

ruby/webrick#218 · 2 comments · Opened Sep 15, 2026
Gracefully handle deprecation of io-wait gem Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

ruby/reline#926 · 1 comment · Opened Sep 15, 2026
Malformed class instance variable member raises RuntimeError instead of RBS::ParsingError Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

ruby/rbs#3148 · Opened Sep 10, 2026
Psych.dump raises Encoding::CompatibilityError for UTF-16/UTF-32 strings Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

ruby/psych#819 · Opened Sep 10, 2026
Potential for reducing number of ri files Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ruby/rdoc#1819 · Opened Sep 9, 2026
Please update the vendored net* libraries Open

RubyGems

Difficulty 3/5 1-2 days Newbie friendliness 66/100

ruby/rubygems#9861 · 2 comments · Opened Sep 8, 2026
Android/Termux: etc fails to compile because `getpwent` declarations are unavailable Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ruby/etc#99 · Opened Sep 6, 2026
Consider renaming the title on `docs.ruby-lang.org` for better SEO Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

ruby/rdoc#1810 · Opened Sep 4, 2026
Proposal: public hook for external documentation providers in show_doc and the completion doc dialog Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

ruby/irb#1243 · Opened Sep 2, 2026
[Content Addressable Gems] Replace hash/array manipulation with named classes Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ruby/rubygems#9834 · Opened Aug 31, 2026
Should gem sources and gem env redact credentials embedded in source URLs? Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ruby/rubygems#9831 · Opened Aug 31, 2026
Consider letting help fall back to RI documentation Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ruby/irb#1242 · Opened Aug 31, 2026
[Security Issue] rbs_string_strip_whitespace reads past empty ranges Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

ruby/rbs#3108 · Opened Aug 29, 2026
Add a test for Mutex_m#try_lock Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

ruby/mutex_m#58 · Opened Aug 27, 2026
What does deactivating the validations do for parsing a rss field? Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ruby/rss#73 · 1 comment · Opened Aug 27, 2026
Is JSON::Coder intended to be thread safe ? Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ruby/json#1064 · 5 comments · Opened Aug 26, 2026
BUNDLE_RETRY is not applied to lazy full-index quick/Marshal gemspec downloads Open

Bundler

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ruby/rubygems#9817 · 1 comment · Opened Aug 26, 2026
Allow specific message bundle config ignore for post-install messages Open

Bundler

Difficulty 5/5 Over a week Newbie friendliness 38/100

ruby/rubygems#9808 · Opened Aug 25, 2026
#8180 is still reproducible without --prefer-local on Bundler 4.0.18 Open

Bundler

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ruby/rubygems#9791 · Opened Aug 20, 2026
C parser creates a self-referencing superclass when rb_define_class_under reuses a C variable Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ruby/rdoc#1782 · Opened Aug 18, 2026
Ruby 2.4: CI build failure with test-unit-ruby-core-1.0.15: unexpected keyword_rescue, expecting keyword_end (SyntaxError) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ruby/weakref#92 · Opened Aug 18, 2026
`Zlib::Deflate#params` segfaults when called before any output buffer exists Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

ruby/zlib#143 · Opened Aug 18, 2026
Avoid IO operations that are affected by the presence or absence of an encoding converter Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

ruby/spec#1387 · 4 comments · Opened Aug 17, 2026
Sexagesimal scalars are mis-scanned Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

ruby/psych#814 · Opened Aug 15, 2026
Fiddle::Pointer#[]= copies beyond the source pointer size Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

ruby/fiddle#214 · 2 comments · Opened Aug 13, 2026
CI: Ruby 2.4 not supported by test-unit-ruby-core Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ruby/forwardable#61 · Opened Aug 10, 2026
CI: test-unit-ruby-core fails on Ruby 2.4 - syntax error, unexpected keyword_rescue, expecting keyword_end Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ruby/yaml#94 · Opened Aug 10, 2026
missing test suite in gem on rubygems Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ruby/uri#244 · Opened Aug 7, 2026
upstream contact for Debian Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

ruby/uri#243 · 1 comment · Opened Aug 7, 2026
UB/crashes with libedit Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ruby/readline-ext#31 · 1 comment · Opened Aug 6, 2026
Psych::Emitter#start_document: tag-directive handles and prefixes are aliased as raw `char *`, and the Strings die inside the loop Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ruby/psych#812 · Opened Aug 6, 2026
Psych::Emitter breaks after GC compaction: raw VALUE stored in libyaml output handler Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ruby/psych#811 · 1 comment · Opened Aug 4, 2026
`URI::Generic#find_proxy` performs blocking DNS lookup before proxy selection Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ruby/net-http#318 · Opened Aug 4, 2026
Could -h aka --no-dereference be supported? Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ruby/fileutils#171 · Opened Aug 3, 2026
Incorrect aliasing Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ruby/rdoc#1764 · Opened Aug 1, 2026
RDoc 8.0.0 gem omits `doc/rdoc/example.rb`, which is referenced by the packaged markup documentation Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

ruby/rdoc#1761 · Opened Jul 31, 2026
Prism parser no longer accepts legacy ghost method directives without a leading colon Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

ruby/rdoc#1760 · 6 comments · 1 reaction · Opened Jul 31, 2026
Prism parser ignores attr_* calls with trailing keyword arguments Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

ruby/rdoc#1759 · Opened Jul 31, 2026
Arrow key inputs are ignored on ENABLE_VIRTUAL_TERMINAL_INPUT enabled windows console Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ruby/reline#914 · Opened Jul 29, 2026
Adding post-quantum cryptography (PQC) support Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ruby/drb#52 · 1 comment · Opened Jul 29, 2026
Weird return type of XPath.match and XPath.first Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ruby/rexml#353 · Opened Jul 29, 2026
[Content Addressable] CA Naming CLI Command Clean Up Open

Difficulty 4/5 3-5 days Newbie friendliness 62/100

ruby/rubygems#9729 · 4 comments · Opened Jul 28, 2026
Question about the intended semantics for inline `#:` type assertions on local variables Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ruby/rbs#3030 · 4 comments · Opened Jul 22, 2026
main page file deduplication & broken links with rdoc 8 Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ruby/rdoc#1750 · Opened Jul 20, 2026
undefined method 'Pathname' for class RBS::EnvironmentLoader (NoMethodError) when running tests for version 3.10.4 Open

Difficulty 1/5 Under an hour Newbie friendliness 78/100

ruby/rbs#3027 · Opened Jul 18, 2026
Closing `DEFAULT` or `NEXT` can crash Ruby Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ruby/fiddle#207 · 1 comment · Opened Jul 18, 2026

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