Swift Formatter
Format and beautify Swift code with clean indentation and Apple style guidelines
Swift Formatting Tips
- Use 4-space indentation as recommended by Apple Swift style guidelines.
- Place opening braces on the same line for declarations and control flow statements.
- Use trailing closures for the last argument when it is a closure expression.
Professional Swift Formatter Processing Features
Everything you need to work with Swift Formatter data efficiently and professionally
Syntax Validation
Detect unclosed braces, brackets, and parentheses with precise error reporting for Swift code.
Beautify Swift Code
Transform messy Swift code into clean, consistently indented code following Apple style guidelines.
SwiftUI Formatting
Properly format SwiftUI view hierarchies with nested modifiers, stacks, and custom views.
Protocol Formatting
Correctly format protocol declarations, extensions, and conformance with proper indentation.
Fast Processing
Format Swift files up to 10MB instantly with client-side processing, no server round-trips needed.
Smart Indentation
Intelligent indentation for guard statements, switch cases, closures, and enum cases.
How It Works
Simple steps to process your Swift Formatter like a pro
Paste Your Swift Code
Paste your Swift source code into the input area, or load a sample to get started.
Customize Options
Choose indentation size to match your project conventions.
Format & Review
Click the format button to beautify your Swift code and review the clean output.
Copy or Download
Copy the formatted code to your clipboard or download it as a file for your project.
Professional Swift Formatter Formatter & Validator
Swift Formatter processing runs entirely in your browser — no uploads, no accounts, no limits.
Processing method
Use this tool’s examples, syntax limits and source documentation to understand its output.
Key Technical Features:
- • Swift syntax-aware parsing with brace matching
- • Support for Swift 5.10 features including macros and concurrency
- • Intelligent indentation for SwiftUI views and property wrappers
- • Client-side processing for maximum security and speed
- • Support for large files up to 10MB
Processing and output
Check the stated processing method and compare the result with your input before using it.
Security & Privacy:
- • 100% client-side processing - data never sent to servers
- • No tracking, cookies or data collection
- • HTTPS encryption for secure connections
- • No data stored or cached after processing
- • GDPR and CCPA compliant approach
Why Professionals Choose EZ Formatter
Your data stays in your browser
Frequently Asked Questions
Common questions about Swift Formatter formatting answered
Yes, our Swift formatter is completely free with no registration required. All processing happens in your browser.
Yes, our formatter properly handles SwiftUI view builder closures with consistent indentation for nested views.
Yes, it correctly formats async/await code, task groups, actors, and Sendable conformance.
No. The formatter only adjusts whitespace and indentation. It never modifies identifiers, types, or logic.
It follows Apple Swift style guidelines with 4-space indentation, consistent brace placement, and proper spacing.
The defaults track apple/swift-format (Apple's official formatter): 4-space indent, no semicolons, and the specific spacing rules of the Swift API Design Guidelines era. Swift historically had no enforced style until swift-format (2019) and SwiftFormat (community, Nick Lockwood) - the two largely agree on layout; this formatter follows the apple tool's choices where they differ.
Result-builder closures (ViewBuilder bodies) format with their view hierarchy one modifier-chain per line, .modifier() calls aligned on the leading dot - the layout every SwiftUI tutorial uses. Trailing closure syntax (Button("Save") { ... }) is preserved, never expanded to explicit closure parameters.
guard else { return } short exits keep their single-line form when short; string interpolation \(value) is untouched; and attribute macros (@State, @Published, @main) stay on their own line above the declaration per Apple's examples. #if os(iOS) blocks keep their line anchoring, like all conditional-compilation directives.
Authoritative References
Standards and official documentation that define the formats this tool works with.
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