SwiftLint review
A focused, free Swift linter with configurable rules, autofix, and CI integrations.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
SwiftLint is an open-source command-line linter for Swift code, aimed at teams that want consistent style and convention checks across development and delivery workflows. It includes built-in rules, configurable rule sets, included and excluded paths, severity levels, and support for configuration through .swiftlint.yml. Its free, MIT-licensed model suits Swift teams that want a dedicated linter without paid tiers, particularly those working in Xcode or Swift Package Manager projects.
Its strongest area is the depth of its Swift-focused rule and analysis options. SwiftLint can automatically correct certain violations, while custom Swift and regular-expression rules let teams extend the default checks. The analyze command adds type-checked AST analysis, giving teams a deeper analysis option than basic source-pattern checks. Output can be tailored to different workflows through JSON, SARIF, GitHub Actions logging, and Xcode reporters. These capabilities make it practical for local checks as well as automated review and build environments.
SwiftLint also fits a broad set of Swift development workflows. It supports Xcode and Swift Package Manager build-tool and command plugins, Visual Studio Code integration, pre-commit hooks, Fastlane, Docker, build scripts, and continuous-integration workflows. That breadth helps teams standardize linting across editors and pipelines, while the single-language focus keeps the product narrower than multi-language linters. Swift teams seeking style enforcement, custom rules, and CI reporting should consider it; teams needing cross-language analysis or built-in security rules should choose a tool designed for those requirements instead.
SwiftLint pros and cons
- Where it wins
- Built-in and configurable rules for Swift style and conventions
- Autofix, custom rules, and type-checked AST analysis
- Xcode, Swift Package Manager, CI, and workflow integrations
- Where it doesn't
- Focused on Swift rather than multiple programming languages
- Automatic correction applies only to certain violations
- Does not provide built-in security rules
SwiftLint fact sheet, pricing and score →
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