Luau Formatter
Format and beautify Luau code for Roblox with type annotations and full syntax support
Luau Formatting Tips
- Use tabs for indentation, as recommended by the official Roblox Lua Style Guide that StyLua follows.
- Annotate function signatures with Luau types — the formatter keeps them aligned and readable.
- Prefer compound assignments (+=, -=, ..=) and string interpolation (`hello {name}`) for cleaner Luau code.
- Working with plain Lua (5.1-5.4) instead? Our Lua Formatter handles standard Lua scripts. Lua Formatter →
Professional Luau Processing Features
Everything you need to work with Luau data efficiently and professionally
Luau Syntax Aware
Understands all Luau syntax: type annotations, generics, type aliases, compound assignments, and string interpolation.
Roblox Style Guide
Follows the official Roblox Lua Style Guide with tab indentation, matching the conventions of Roblox Studio.
Type Annotation Support
Formats type annotations, function signatures, and table types with clean, consistent alignment.
StyLua Engine
Built on StyLua, the battle-tested formatter used by professional Roblox teams and open-source projects.
Fast WASM Processing
Formats Luau files up to 10MB instantly with client-side WebAssembly, no server round-trips needed.
Deterministic Output
Produces the same clean output every time, so your whole team gets consistent formatting.
How It Works
Process your Luau in a few simple steps — built for US developer workflows
Paste Your Luau Code
Paste your Roblox Luau script into the input area, or load a sample to get started.
Format Instantly
Click the format button and StyLua beautifies your code following the Roblox style guide.
Review the Output
Check the formatted result with clean indentation, aligned types, and consistent spacing.
Copy or Download
Copy the formatted Luau code back into Roblox Studio or your favorite editor.
Professional Luau Formatter & Validator
Trusted by US developers — from Silicon Valley startups to NYC enterprises — for reliable Luau processing that keeps data private
Built by Experts
Our Luau formatter is built on StyLua, the same engine used by professional Roblox developers. It follows the official Roblox Lua Style Guide and understands every Luau feature, from type annotations to string interpolation.
Key Technical Features:
- • Powered by StyLua, the formatter trusted by the Roblox community
- • Full Luau syntax support including type annotations and generics
- • Handles compound assignments and string interpolation correctly
- • Client-side processing for maximum security and speed
- • Support for large scripts up to 10MB
Trusted & Secure
Trusted by Roblox game developers and scripters worldwide. Your Luau scripts are formatted entirely in your browser and never leave your device.
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
Join thousands of US developers who rely on our Luau formatter for their daily workflow. No registration, completely free, and built with privacy front of mind — perfect for quick formatting between standups or during deep work sessions.
Luau Formatter Formatting for US Developer Workflows
Across the United States, Luau Formatter files drive everything from REST APIs at Bay Area SaaS companies to data pipelines at Chicago fintechs and coursework at universities like MIT and Stanford. American teams typically follow luau formatter conventions aligned with US tech standards: 2-space indentation in most JS stacks, RFC-compliant payloads, and UTC timestamps normalised to America/New_York or America/Los_Angeles for display. Our formatter handles Luau Formatter the way stateside engineers actually work — no sign-up, no upload, and your data never crosses a server, which matters for CCPA, HIPAA and SOC 2 environments. Whether you're prettifying an API response in Austin, validating a config in Seattle, or cleaning up a dataset between standups in NYC, it runs entirely in your browser and finishes in milliseconds.
Frequently Asked Questions
Common questions about Luau Formatter formatting answered
Yes. Everything runs client-side in your browser, so no Luau Formatter data is transmitted to a server. This no-upload design supports CCPA, HIPAA and SOC 2 expectations for handling regulated information.
The formatter preserves your original timestamps unchanged and works seamlessly with America/New_York, America/Chicago, America/Denver and America/Los_Angeles contexts. It does not alter date values — only the Luau Formatter structure.
Absolutely. No registration, no login, no corporate SSO required. Open the page, paste your Luau Formatter, and format immediately — which also means no usage telemetry tied to your identity, convenient for enterprise environments.
Yes, our Luau formatter is completely free with no registration required. All formatting happens in your browser using WebAssembly.
Yes, it fully supports Luau type annotations, type aliases, generics, and exported types. Types are preserved and cleanly aligned in the output.
Absolutely. It is designed for Roblox development and follows the official Roblox Lua Style Guide, using tab indentation like Roblox Studio.
No. The formatter only adjusts whitespace, indentation, and line breaks. It never modifies identifiers, values, types, or logic.
Yes, Luau-specific syntax like backtick string interpolation (`hello {name}`) and compound assignments (+=, -=, ..=) is fully supported.
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