Lua Formatter

適切なインデントでLuaスクリプトをフォーマットし、美しくします

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About This Tool

The Lua Formatter lua formatter engine format and beautify lua source code All processing happens client-side in your browser, ensuring your data remains private and secure. Perfect for developers who need quick, reliable processing without compromising on privacy or security.

How to Use This Tool

Input Your Lua

Paste your Lua code into the input area. The formatter handles minified Lua, inconsistently formatted code, or code with mixed indentation. Load sample data to see formatting in action.

Choose Formatting Style

Select your preferred indentation (2 spaces, 4 spaces, or tabs) and other Lua formatting preferences. The tool applies industry-standard Lua style guidelines but can be customized to match your project's standards.

Copy Formatted Output

Formatted Lua appears instantly in the output panel. Use the "Copy" button for clipboard, or "Download" to save as a file. The formatted Lua is fully functional with dramatically improved readability.

Technical Implementation

This tool is built using modern JavaScript and runs entirely in your web browser. All operations complete in milliseconds for typical inputs, with performance optimized for both speed and accuracy. The implementation is client-side only - your data never leaves your device. The tool works offline once loaded, requires no cookies, and includes no tracking. Supported browsers include Chrome 90+, Firefox 88+, Safari 14+, and Edge 90+. The tool is mobile-responsive and works on tablets and smartphones.

Best Practices & Tips

✓Format Lua before code reviews. Clean, consistently formatted code is easier to review and helps reviewers focus on logic rather than style issues.
✓Use consistent indentation across your team. Choose 2 spaces, 4 spaces, or tabs for Lua and stick with it. This formatter makes it easy to enforce your team's standard.
✓Format minified Lua for debugging. When debugging production issues, format the minified code first to make it human-readable. This tool handles even heavily compressed Lua.
✓Combine with validation. Always validate Lua after formatting to ensure no errors were introduced. Use our Lua validator alongside this formatter.

Troubleshooting Common Issues

Problem: Formatted output has syntax errors

Solution: The formatter preserves your original Lua content exactly - it only changes whitespace and indentation. If output has errors, the input likely had errors. Validate first, then format.

Example: If your minified Lua had missing commas, formatting will make them more visible but won't fix them.

Problem: Indentation doesn't match my preference

Solution: Check the indentation settings (2 spaces, 4 spaces, or tabs). The formatter applies your chosen style consistently throughout the Lua.

Example: If you want 4-space indentation but see 2 spaces, change the setting and re-format.