Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Ranked by how they treat first pull requests

The most beginner-friendly Ruby open source projects

Projects that merge pull requests from outside contributors and answer them quickly: the two things a newcomer cannot see before sending one.

  1. 🍻 Default casks (upstream binary packages) for the package manager for everywhere

    98% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 22,234 stars

  2. 2. resque/resque Ruby

    Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.

    90% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 9,473 stars

  3. REST client for Google APIs

    78% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 2,899 stars

  4. New Relic RPM Ruby Agent

    82% of outside PRs merged Maintainers usually reply within 1 day

    3 open beginner issues 1,209 stars

  5. Your self-hosted, globally interconnected microblogging community

    88% of outside PRs merged Maintainers usually reply within 1 day

    15 open beginner issues 50,336 stars

  6. API Documentation Browser

    81% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 39,467 stars

  7. Security hardening content for VMware solutions to US Department of Defense standards

    82% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 200 stars

  8. On a mission to index all Ruby events.

    80% of outside PRs merged Maintainers usually reply within 1 day

    16 open beginner issues 567 stars

  9. 🦍 Source code for developer.konghq.com website.

    80% of outside PRs merged Maintainers usually reply within 1 day

    83 open beginner issues 28 stars

  10. All of the code that runs on worldcubeassociation.org

    76% of outside PRs merged Maintainers usually reply within 1 day

    11 open beginner issues 407 stars

  11. shared collaborative lich scripts

    72% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 27 stars

  12. 12. spree/spree Ruby

    Open Source Platform for DTC, B2B Commerce, Marketplaces & Omnichannel. REST APIs, TypeScript SDKs, and production-ready Next.js storefront. Self-host it. Own your data. No vendor lock-in. Zero pla...

    78% of outside PRs merged Maintainers usually reply within 1 day

    2 open beginner issues 15,712 stars

  13. 13. forem/forem Ruby

    For empowering community 🌱

    69% of outside PRs merged Maintainers usually reply within 1 day

    2 open beginner issues 22,783 stars

  14. Publishes government content on GOV.UK

    78% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 1,029 stars

  15. 15. ruby-grape/grape Ruby

    An opinionated framework for creating REST-like APIs in Ruby.

    82% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 10,007 stars

  16. Informative site with EoL dates of everything

    72% of outside PRs merged Maintainers usually reply within 1 day

    13 open beginner issues 3,382 stars

  17. 17. ruby/irb Ruby

    interactive Ruby

    90% of outside PRs merged Maintainers usually reply within 1 day

    2 open beginner issues 478 stars

  18. 75% of outside PRs merged Maintainers usually reply within 1 day

    1 open beginner issue 834 stars

  19. 62% of outside PRs merged Maintainers usually reply within 1 day

    5 open beginner issues 24 stars

  20. The largest high school STEM event of the summer!

    52% of outside PRs merged Maintainers usually reply within 1 day

    8 open beginner issues 98 stars

How this ranking works

Score = merge rate × reply speed. The merge rate is the share of pull requests from outside contributors (anyone who is not an owner, member or collaborator of the project, bots excluded) merged in the last 30 days, smoothed as (merged + 1) ÷ (sent + 2) so a few lucky merges do not outrank a long record. The reply speed is 1 ÷ (1 + the median number of days before a pull request gets its first reply from someone other than its author, or is merged). Bot comments do not count as replies.

Listed: projects with at least 10 outside pull requests in that window, at least one open beginner issue, at least 10 stars, a push in the last 180 days, not archived, and measured in the last 30 days.

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