stylua 0.8.1

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An opinionated code formatter for Lua 5.1, Lua 5.2 and Luau, built using full-moon. StyLua is inspired by the likes of prettier, it parses your Lua codebase, and prints it back out from scratch, enforcing a consistent code style.


There are multiple ways to install StyLua:

With Github Releases

Pre-built binaries are available on the GitHub Releases Page. Please note, currently by default, StyLua is built with Luau features enabled. If you would just like to format Lua 5.1 code, or would like to format Lua 5.2 code, please see installing from

With Foreman

StyLua can be installed using foreman. Add the following to your foreman.toml file:

stylua = { source = "JohnnyMorganz/stylua", version = "0.8.1" }

Using the VSCode Extension

You can use the VSCode Extension, which will automatically download StyLua for you. Set StyLua as your formatter when prompted, or add the following configuration to your settings.json file:

"[lua]": {
    "editor.defaultFormatter": "JohnnyMorganz.stylua"

and StyLua will then be used to format your code. It is recommended to also enable editor.formatOnSave.


If you have Rust installed, you can install StyLua using cargo

cargo install stylua

This will compile StyLua (for Lua 5.1) and install it on your local machine. If you would like Luau features, pass the --features luau argument.

cargo install stylua --features luau

Similarly, for Lua 5.2 syntax, pass the --features lua52 argument.

cargo install stylua --features lua52


Once installed, using StyLua is quick and simple, just pass the files to format to the CLI.

stylua src/ foo.lua bar.lua

This command will format the foo.lua and bar.lua file, and search down the src directory to format any files within it.

StyLua can also read from stdin, by using - as the file name.

Glob Filtering

When searching through a directory, a glob pattern can be used to specify which specific types of files to format:

stylua --glob **/*.lua -- src

Multiple glob patterns can be used to match specific files, and not others. For example:

stylua -g *.lua -g !*.spec.lua -- .

will format all Lua files, but ignore any .spec.lua test files. Note, if you are using the glob argument, it can take in multiple strings, so a -- is required to break between the glob pattern and the files to format. The glob defaults to **/*.lua.

Filtering using .styluaignore

You can also create a .styluaignore file, with a similar format to a .gitignore file. Any files matched will be ignored by StyLua. For example, for a .styluaignore file with the following contents:


running stylua . will ignore the vendor/ directory.

Checking files for formatting

If you want to check that files have been formatted, but not overwrite them, you can pass the --check argument to StyLua. StyLua will search through files as normal, but instead of writing the formatted code back to the file, StyLua will output a diff to stdout. If there are files which haven't been fully formatted, StyLua will exit with status code 1.

Formatting Ranges

If you only want to format a specific range within a file, you can pass the --range-start <num> and/or --range-end <num> arguments, and only statements within the provided range will be formatted, with the rest ignored. Both arguments are optional, and are inclusive. If an argument is not provided, the start or end of the file will be used instead respectively.

Currently, only whole statements lying withing the range are formatted. If part of the statement is outside of the range, the statement will be ignored.

There is also support for the formatting selected ranges in the VSCode Extension.

Ignoring parts of a file

If there is a specific statement within your file which you wish to skip formatting on, you can precede it with -- stylua: ignore, and it will be skipped over during formatting. This may be useful when there is a specific formatting style you wish to preserve for a statement. For example:

-- stylua: ignore
local matrix = {
    { 0, 0, 0 },
    { 0, 0, 0 },
    { 0, 0, 0 },


StyLua is opinionated, so there are as little configuration options as possible. The CLI will search for a stylua.toml file in the current working directory to read the configuration. Alternatively, you can pass your own path using the --config-path argument.

StyLua only offers the following options:


The approximate line length for printing. This is used as a guide to determine when to wrap lines, but note this is not a hard upper bound. Defaults to 120.

column_width = 120


The type of line endings to use, supports either Unix (LF) or Windows (CRLF) options. Defaults to Unix.

line_endings = "Unix"


The type of indents to use, supports either Tabs or Spaces. Defaults to Tabs.

indent_type = "Tabs"


The width of spaces a single indent level should be. This option is used for heuristics only to determine column width if the indent_type is set to Tabs. Defaults to 4.

indent_width = 2


The types of quotes to use for string literals, supports either AutoPreferDouble, AutoPreferSingle, ForceDouble or ForceSingle. For the auto styles, we will prefer the quote type specified, but fall back to the opposite if it means there are fewer escapes in the string. For the force styles, we will always use the quote type specified. Defaults to AutoPreferDouble.

quote_style = "AutoPreferDouble"