#187 · Programming Language Tools Developer Tool

Swift Formatter

Beautify Swift source code with safe formatting, import sorting, and before-and-after output. Processing stays in your browser.

Developer Input

Swift source
spaces
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How to use this developer tool

  1. Paste source code or load the included working example.
  2. Choose the formatting mode and adjust the additional setting.
  3. Enable only the checks or output options needed for this review.
  4. Select Format Swift and inspect the output, status, and measured processing time.
  5. Copy or download the result after reviewing heuristic findings.

What this developer tool does

This tool performs browser-based structural and static analysis. It does not replace the official Kotlin or Swift compiler.

Source input → string and comment masking → token or rule analysis → structured output → statistics and recommendations.

Heuristic findings are labeled for review. Confirm production code with the official compiler, IDE, and project test suite.

Example

The loaded example is executable test input for the Swift Formatter. Run the tool to see its expected output and status.

Tips for better output

  • Use complete declarations when possible so scope and block ranges can be estimated correctly.
  • Keep strings and comments intact; the analyzer masks them before structural processing.
  • Review every automatic conversion before replacing source in a production project.
  • Use the official compiler for final syntax, type, dependency, and platform validation.

FAQ

How can I format Swift code online without Xcode?

Paste Swift source, choose a formatting mode and indentation style, then run the formatter.

Does the Swift formatter preserve string contents?

Yes. Strings and comments are masked before spacing and indentation rules are applied.

Can I sort Swift import statements automatically?

Yes. Enable Sort Imports to alphabetize and deduplicate the leading import block.

How do I format Swift code with four-space indentation?

Choose 4 Spaces in the indentation selector and run the formatter.

Can this formatter replace SwiftFormat or swift-format?

No. It is a lightweight browser formatter for common cleanup tasks, not a full parser-based formatter.

Swift Formatter modules

ModulePurpose
IndentationNormalizes block indentation.
SpacingCleans common operators and separators.
ImportsSorts the leading import set.

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