Slim-Lint
A Ruby linter for keeping Slim templates clean and readable.
At a glance
- Editor scoreNot yet scored
- PricingFree plan
- Best forTeams linting Slim templates in CI
- Free planYes
- Paid fromNone
- Security analysisNo
- Facts checked26 Sep 2026
Where it wins
- Configurable style and consistency rules can be tuned per project.
- Scans Slim files and directories from the command line.
- Offers multiple report formats and supports CI workflows.
Where it doesn't
- Focused on Slim templates rather than general Ruby analysis.
- No security analysis, type checking, or autofix.
- Self-hosted only, with docs and community support channels.
Our verdict on Slim-Lint
Slim-Lint is an open-source Ruby command-line linter for developers maintaining Slim-based applications. It checks Slim template files against style and consistency rules, reports violations, and can run locally or in continuous-integration workflows. That scope makes it a fit for teams that want template-specific checks in their development process, including teams linting Slim templates in CI. It is not a general-purpose Ruby static analysis tool, so teams looking for broader code analysis should consider a different kind of product.
Configuration is handled through a project file, where teams can enable, disable, and tune individual linters. The command-line tool can scan files or directories and provides multiple output and reporting options. Together, those capabilities make the tool adaptable to different Slim projects and allow its checks to be included in an existing CI workflow. Slim-Lint is distributed as a Ruby gem and is self-hosted, rather than offered as a hosted service. Its focused feature set centers on template style and consistency; it does not provide security analysis, type checking, or autofix.
Slim-Lint is open source and has a free plan, so its published pricing model does not require a paid tier for the stated linting functionality. Support channels are documentation and community. Teams comfortable running a Ruby command-line tool and maintaining project configuration can use it to add repeatable Slim template checks without adopting a hosted platform. It is a less suitable choice for buyers who need analysis beyond Slim templates, automatic correction of findings, or a hosted option. Choose it for targeted Slim linting in local and CI workflows; look elsewhere when the requirement is broader Ruby analysis or those missing capabilities.
Slim-Lint pricing
Slim-Lint fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Security analysis | No |
| Type checking | No |
| Automated fixes | No |
| Custom rules | Yes |
| Hosted option | No |
| Self-hosted option | Yes |
| Deployment | Self-hosted |
| Support | Docs, Community |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 26 Sep 2026 |
Alternatives to Slim-Lint
- OpenText Fortify SASTBroad code analysis and workflow integrations for teams with enterprise SAST needs.—
- Snyk CodeSecurity-focused code scanning with IDE, pull-request, and CI/CD workflows.6.3
- GitHub CodeQLSemantic queries and pull-request alerts for teams working in GitHub-centered workflows.6.3
See all Slim-Lint alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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