It suits software teams looking to automate pull-request review and scan code or infrastructure for security issues.
Free plan Free trial From $30 a month, billed yearly WebWindowsMacLinuxAPISelf-hosted
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Best Ruby Static Analysis Tools 2026
Facts read 21 Sep 2026 – 14 Oct 2026
This collection presents Ruby static analysis tools so you can compare security analysis, type checking, automated fixes and custom rules. It also records pricing, free access and deployment choices for buyers and development teams.
The standings: top 10
| Name | In a line | Record score | Price from | Try it free | Runs on | Facts read |
|---|---|---|---|---|---|---|
| 01 DeepSource | It suits software teams looking to automate pull-request review and scan code or infrastructure for security issues. | 6.0 | $30 a month, billed yearly | Free plan | Web, Windows, Mac, Linux | 14 Oct 2026 |
| 02 GitHub CodeQL | CodeQL suits developers and security researchers who need to analyze code for security and other quality issues. | 5.7 | Free plan | Free plan | Web, Windows, Mac, Linux | 28 Sep 2026 |
| 03 Qlty Cloud | Qlty Cloud suits development teams that want code and coverage feedback in pull requests, with customizable rules and GitHub workflows. | 5.2 | $20 a month | Free plan | Web, Windows, Mac, Linux | 2 Oct 2026 |
| 04 Codacy | Codacy suits engineering teams that want pull request review, security scanning, and shared coding standards. | 5.1 | $18 a year | Free plan | Web, Browser extension | 30 Sep 2026 |
| 05 Semgrep Supply Chain | 5.0 | $30 a month | Free plan | Web, Mac, Linux, API | 30 Sep 2026 | |
| 06 Reek | Reek suits Ruby developers who want configurable code-smell reports for files, directories, or standard input. | 4.5 | Free plan | Free plan | Linux | 11 Oct 2026 |
| 07 RuboCop | 4.5 | Free plan | Free plan | Linux, Self-hosted | 10 Oct 2026 | |
| 08 Brakeman | Brakeman suits developers and teams maintaining Ruby on Rails applications who want automated source-code security checks in development or CI workflows. | 4.4 | Free plan | Free plan | Linux, Self-hosted | 9 Oct 2026 |
| 09 bundler-audit | 4.4 | Free plan | Free plan | Mac, Linux | 5 Oct 2026 | |
| 10 Dawnscanner | Dawnscanner may suit developers working on Ruby web applications who want local static analysis for supported frameworks. | 4.2 | Free plan | Free plan | Linux, Self-hosted | 8 Oct 2026 |
The finder is ordered by release recency, using figures published by the makers. It applies no score, so compare the published details that match your project.
02
GitHub CodeQL
CodeQL suits developers and security researchers who need to analyze code for security and other quality issues.
WebWindowsMac+3 Record5.7 Visit
03
Qlty Cloud
Qlty Cloud suits development teams that want code and coverage feedback in pull requests, with customizable rules and GitHub workflows.
WebWindowsMac+3 Record5.2 Visit
04
Codacy
Codacy suits engineering teams that want pull request review, security scanning, and shared coding standards.
WebBrowser extension Record5.1 Visit
05
Semgrep Supply Chain
WebMacLinux+2 Record5.0 Visit
6
Reek
Linux Free plan Record4.5 Visit Reek suits Ruby developers who want configurable code-smell reports for files, directories, or standard input.
8
Brakeman
LinuxSelf-hosted Free plan Record4.4 Visit Brakeman suits developers and teams maintaining Ruby on Rails applications who want automated source-code security checks in development or CI workflows.
10
Dawnscanner
LinuxSelf-hosted Free plan Record4.2 Visit Dawnscanner may suit developers working on Ruby web applications who want local static analysis for supported frameworks.
Before you choose
Compare free access and paid plans
A free plan appears across tools in this list, while a free trial is available from selected providers. Check what the free plan includes before adopting a hosted service.
Published paid pricing includes Codacy from $18/user/mo on annual billing, DeepSource from $24/user/mo on annual billing, GitHub CodeQL from $30/mo and Qlty Cloud from $20/mo. Open-source options include bundler-audit and Dawnscanner.
Align checks with your code
When security analysis or type checking matters to your Ruby project, review those fields in the comparison. Automated fixes can affect how review work fits into your workflow.
Custom rules help when a project needs checks beyond a tool's defaults. Confirm the specific capability on the maker's current product page.
Choose where the tool runs
Tools in this list run across Linux, macOS, Windows, web, self-hosted and API environments. Match the platform to your development and build environment.
A hosted option can suit teams that want a web service. Projects that keep analysis in their own environment may prefer self-hosting; verify availability for the tool you are considering.
Check the licence and pricing model
Pricing models in the list include free, freemium and paid. Open-source entries include bundler-audit, Dawnscanner and Rails Best Practices.
Review the maker's licence terms and pricing note before using a tool in a commercial workflow. OpenText Fortify SAST provides pricing details on request.
Questions
Are free plans available for Ruby static analysis tools?
Yes. The list includes tools with free plans, alongside free, freemium and paid pricing models.
Which listed tools provide a free trial?
Codacy and DeepSource list 14-day trials. Brakeman lists no free trial.
Which published paid starting prices can I compare?
Codacy lists $18/user/mo on annual billing, DeepSource $24/user/mo on annual billing, GitHub CodeQL $30/mo and Qlty Cloud $20/mo.
Can these tools run on a developer's own systems?
The platform fields include Linux, macOS, Windows, web, self-hosted and API. Check the individual tool's platform details.
Which comparison features matter for Ruby analysis?
The comparison covers security analysis, type checking, automated fixes, custom rules, hosted options and self-hosted options.
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