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Top 20 Ruby Linter Projects
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If you're looking for static typing a dynamic language is going to be a poor fit. I find a place for both. I love Rust, but trying to write a tool that consumed a GraphQL API with was a brutal exercise in frustation. I'd say that goes for typing of JSON or YAML or whatever structured format in general. It's refreshing being able to just work with data in the form I already know it's in. Ruby can be an incredibly productive language to work with.
If you're looking for static analysis in general, please note that there are mature tools available. Rubocop¹ is probably the most popular and allows for linting and code formatting. Brakeman² is a vulnerability scanner for Rails. Sorbet³ is a static type checker.
The tooling is there if you want to try things out. But, if you want a statically typed language then that's a debate that's been going since the dawn of programming language design. I doubt it's going to get resolved in this thread.
¹ - https://github.com/rubocop/rubocop
² - https://brakemanscanner.org/
³ - https://sorbet.org/
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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Project mention: Rubocop-obsession: RuboCop extension focused on higher-level concepts | news.ycombinator.com | 2024-10-27
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undercover
undercover warns about methods, classes and blocks that were changed without tests, to help you easily find untested code and reduce the number of bugs. It does so by analysing data from git diffs, code structure and SimpleCov coverage reports
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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rubocop-obsession
RuboCop extension focused on higher-level concepts, like checking that code reads from top to bottom
Project mention: Rubocop-obsession: RuboCop extension focused on higher-level concepts | news.ycombinator.com | 2024-10-27 -
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
Ruby Linter discussion
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Rubocop-obsession: RuboCop extension focused on higher-level concepts
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Five Things to Avoid in Ruby
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Utilities for refactoring and upgrading Ruby code based on ASTs
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Am I the only one who doesn't put parentheses around the parameters in Ruby method definitions?
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A decent VS Code and Ruby on Rails setup
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Standardrb: Ruby's bikeshed-proof linter and formatter
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A Writer's Ruby
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A note from our sponsor - InfluxDB
www.influxdata.com | 7 Jul 2025
Index
What are some of the best open-source Linter projects in Ruby? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | rubocop | 12,749 |
| 2 | standard | 2,825 |
| 3 | rubocop-rails | 843 |
| 4 | undercover | 743 |
| 5 | rubocop-performance | 711 |
| 6 | rubocop-graphql | 230 |
| 7 | rubocop-minitest | 149 |
| 8 | rubocop-obsession | 136 |
| 9 | rubocop-gradual | 36 |
| 10 | rubocop-ruby2_3 | 5 |
| 11 | rubocop-ruby2_2 | 5 |
| 12 | rubocop-ruby2_5 | 5 |
| 13 | rubocop-ruby2_4 | 5 |
| 14 | rubocop-ruby3_1 | 4 |
| 15 | rubocop-ruby1_9 | 4 |
| 16 | rubocop-ruby2_7 | 4 |
| 17 | rubocop-ruby3_0 | 4 |
| 18 | rubocop-ruby2_6 | 4 |
| 19 | rubocop-ruby2_1 | 4 |
| 20 | rubocop-ruby2_0 | 4 |
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