Welcoming Repositories Index Ruby Ecosystem
Top Welcoming Open-Source Ruby Repositories
Top welcoming Ruby repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.
Updated daily • Sun, 30 Aug 2026 UTC
Tracked Repos
2,094
>100 stars verified
Avg Merge Rate
70%
90-day external PRs
Open GFIs
9
Beginner friendly issues
Welcoming Tier
20
S & A Tier maintainers
Ranked Ruby Repositories
Showing top 50 of 2,094 ranked repositories
| Rank | Repository | Tier | Score | Merge Rate | Good First Issues |
|---|---|---|---|---|---|
| #1 | LINE Messaging API SDK for Ruby | S•Elite | 81.8 | 95.7% | - |
| #2 | Modern and performant Kafka client library for Ruby based on librdkafka | B•Solid | 75.9 | 100.0% | - |
| #3 | karafka/karafka2,257 Ruby and Rails efficient Kafka processing framework | B•Solid | 75.5 | 94.7% | - |
| #4 | Ruby integrations for Elasticsearch | B•Solid | 74.7 | 100.0% | - |
| #5 | 📸 📝 ✊ Für sichere Radwege und freie Bürgersteige: www.weg.li | B•Solid | 74.5 | 97.0% | - |
| #6 | Concerto Digital Signage System | S•Elite | 71.1 | 98.1% | 2 |
| #7 | Git repository of MarkUs | B•Solid | 70.2 | 98.3% | - |
| #8 | :shipit: Custom emoji supported by Buildkite which you can use in your build pipelines and terminal output. | S•Elite | 70.1 | 86.8% | - |
| #9 | A demo application for Active Admin | A•Welcoming | 68.7 | 90.2% | - |
| #10 | Self-hosted photovoltaic dashboard for monitoring solar production, consumption, battery usage, grid exchange, and financial performance. | B•Solid | 68.7 | 97.6% | - |
| #11 | ruby-ui/ruby_ui1,033 Ruby gem for RubyUI Components | B•Solid | 68.1 | 85.8% | - |
| #12 | 🔐 Securely share sensitive information with automatic expiration & deletion after a set number of views or duration. Track who, what and when with full audit logs. | A•Welcoming | 66.4 | 93.5% | - |
| #13 | Build LLM-powered applications in Ruby | A•Welcoming | 65.8 | 100.0% | - |
| #14 | Generate OpenAPI schema from RSpec request specs | B•Solid | 65.7 | 88.7% | - |
| #15 | thoughtbot/guides9,561 A guide for programming in style. | A•Welcoming | 64.1 | 100.0% | - |
| #16 | A general classifier module to allow Bayesian and LSI classifications. | B•Solid | 63.8 | 90.9% | - |
| #17 | The Rails application that powers OpenStreetMap | A•Welcoming | 63.6 | 71.4% | - |
| #18 | Repository of bangs used by Kagi Search | A•Welcoming | 63.4 | 92.6% | - |
| #19 | hackclub/hcb863 🏦 Open source, transparency-orientated fiscal sponsorship platform for hackers & creatives. | A•Welcoming | 63.2 | 11.1% | 3 |
| #20 | MCP server with runtime-level tools for Rails development | B•Solid | 63.0 | 100.0% | - |
| #21 | Ruby binding for DuckDB | B•Solid | 62.6 | 100.0% | - |
| #22 | The administration framework for Ruby on Rails applications. | B•Solid | 61.5 | 87.5% | - |
| #23 | Swagger UI as Rails Engine for grape-swagger gem. | A•Welcoming | 61.0 | 87.5% | - |
| #24 | daddyz/phonelib1,164 Ruby gem for phone validation and formatting using google libphonenumber library data | B•Solid | 60.9 | 100.0% | - |
| #25 | 🟥 AppSignal for Ruby gem | A•Welcoming | 60.2 | 58.8% | - |
| #26 | antiwork/gumroad9,639 See what sticks | A•Welcoming | 59.4 | 28.6% | - |
| #27 | 🛰️🚀A list of awesome space-related packages and resources maintained by The Orbital Index | B•Solid | 59.3 | 91.7% | - |
| #28 | B•Solid | 59.3 | 100.0% | - | |
| #29 | Official Ruby SDK for the OpenAI API | A•Welcoming | 58.4 | 14.3% | - |
| #30 | jeremyevans/sequel5,092 Sequel: The Database Toolkit for Ruby | A•Welcoming | 58.4 | 76.9% | - |
| #31 | haml/haml3,835 HTML Abstraction Markup Language - A Markup Haiku | B•Solid | 57.7 | 80.0% | - |
| #32 | Find actively maintained & popular open source software libraries for the Ruby programming language | B•Solid | 56.9 | 59.2% | - |
| #33 | tryzealot/zealot1,340 Self-hosted Beta App Distribution for Android, iOS, macOS, Linux and Windows apps | 开源自部署移动应用、 macOS、Linux 和 Windows 应用分发平台，提供 iOS、Android SDK、fastlane 等丰富组件库 | B•Solid | 56.9 | 85.2% | - |
| #34 | samvera/hyku109 Hyku: A multi-tenant Hyrax application built on the latest and greatest Samvera community components. Brought to you by the Hydra-in-a-Box project partners and IMLS; maintained by the Hyku Interest Group. | A•Welcoming | 56.8 | 40.0% | - |
| #35 | Rails Generators for Cucumber with special support for Capybara and DatabaseCleaner | A•Welcoming | 56.6 | 62.5% | - |
| #36 | rggen/rggen468 Code generation tool for control and status registers | B•Solid | 56.5 | 100.0% | - |
| #37 | Deployment coordination | A•Welcoming | 56.2 | 100.0% | - |
| #38 | cruby's capable AI runtime | B•Solid | 55.8 | 75.0% | 3 |
| #39 | Homebrew/brew49,320 🍺 The Package Manager for Everywhere | A•Welcoming | 55.6 | 6.3% | - |
| #40 | inspec/inspec3,084 InSpec: Auditing and Testing Framework | A•Welcoming | 55.5 | 36.4% | - |
| #41 | Use Webpack to manage app-like JavaScript modules in Rails | B•Solid | 55.1 | 25.0% | - |
| #42 | Homebrew/homebrew-core15,542 🍻 Default and OSS formulae (built-from-source packages) for the package manager for everywhere | B•Solid | 54.8 | 9.8% | 1 |
| #43 | A set of bindings for the GNOME libraries to use from Ruby. | B•Solid | 54.8 | 73.7% | - |
| #44 | Workbench for biodiversity informatics. | B•Solid | 54.7 | 72.1% | - |
| #45 | mastodon/mastodon50,261 Your self-hosted, globally interconnected microblogging community | B•Solid | 54.5 | 5.9% | - |
| #46 | we-promise/sure9,651 The personal finance app for everyone (by everyone) | B•Solid | 54.1 | 20.0% | - |
| #47 | All the code for Bike Index, because we love you | B•Solid | 54.0 | 26.7% | - |
| #48 | ruby/ruby23,679 The Ruby Programming Language | B•Solid | 53.9 | 3.7% | - |
| #49 | Open Source Metering and Usage Based Billing | B•Solid | 53.5 | 10.0% | - |
| #50 | gazay/gon3,100 Your Rails variables in your JS | B•Solid | 53.2 | 83.3% | - |
How to Get Your Ruby PR Merged
1
Check C-Rank™ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.
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Frequently Asked Questions: Ruby Open Source
What is the most welcoming Ruby open-source repository?
The highest-ranked Ruby repository on GetMerged is currently line/line-bot-sdk-ruby, with a C-Rank score of 81.8/100 and a 95.7% PR merge rate.
How can I find good first issues in Ruby?
You can browse verified beginner-friendly issues in Ruby by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/ruby.
What makes a Ruby repository ‘Super Welcoming’ on GetMerged?
A ‘Super Welcoming’ (S-Tier) Ruby repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.