Ruby Gem

Open-source Ruby projects categorized as Gem
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Top 23 Ruby Gem Projects

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  1. colorls

    A Ruby gem that beautifies the terminal's ls command, with color and font-awesome icons. :tada:

  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. bootsnap

    Boot large Ruby/Rails apps faster

  4. Coltrane

    ðŸŽđðŸŽļA music theory library with a command-line interface

  5. counter_culture

    Turbo-charged counter caches for your Rails app.

    Project mention: Ruby on Rails Performance: 7 Lessons from Scaling FirstPromoter | dev.to | 2026-04-09

    Rails' built-in counter_cache got us started, but we graduated to counter_culture for conditional counts and multi-level caching.

  6. wordmove

    Multi-stage command line deploy/mirroring and task runner for Wordpress

  7. premailer-rails

    CSS styled emails without the hassle.

  8. Goldiloader

    Just the right amount of Rails eager loading

  9. Lol DBA

    lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.

  10. Gem in a Box

    Really simple rubygem hosting

  11. dry-validation

    Validation library with type-safe schemas and rules

  12. dip

    The dip is a CLI dev–tool that provides native-like interaction with a Dockerized application.

  13. colorize

    Ruby string class extension. It add some methods to set color, background color and text effect on console easier using ANSI escape sequences.

  14. BatchLoader

    :zap: Powerful tool for avoiding N+1 DB or HTTP queries

  15. render_async

    render_async lets you include pages asynchronously with AJAX

  16. rainbow

    Ruby gem for colorizing printed text on ANSI terminals (by ku1ik)

  17. Bh

    Bootstrap Helpers for Ruby

  18. Ruby Facets

    Ruby Facets

  19. Yt

    The reliable YouTube API Ruby client

  20. online_migrations

    Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

  21. motion

    Reactive frontend UI components for Rails in pure Ruby (by unabridged)

  22. discordrb

    Discord API for Ruby

  23. rubocop-github

    Code style checking for GitHub's Ruby projects

  24. memo_wise

    The wise choice for Ruby memoization

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Gem projects in Ruby? This list will help you:

# Project Stars
1 colorls 5,123
2 bootsnap 2,736
3 Coltrane 2,393
4 counter_culture 2,115
5 wordmove 1,881
6 premailer-rails 1,767
7 Goldiloader 1,674
8 Lol DBA 1,594
9 Gem in a Box 1,545
10 dry-validation 1,422
11 dip 1,324
12 colorize 1,283
13 BatchLoader 1,120
14 render_async 1,076
15 rainbow 839
16 Bh 832
17 Ruby Facets 805
18 Yt 753
19 online_migrations 738
20 motion 695
21 discordrb 691
22 rubocop-github 660
23 memo_wise 630

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