Luacheck

6.9easy start · #9 of 33
in Linters

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you workyes

Runs on Linux, Mac, self-hosted, Windows.

Luacheck is ranked #9 of 33 in linters on The Geeks Club. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

Luacheck plans and pricing

All plans

Luacheck Free MIT-licensed Lua linter and static analyzer github.com · 4 Oct 2026

Compared on linters

Languages supported: 1
IDE support: editor
CI support: Yes

Best Luacheck alternatives

See all 20

Cppcheck 0 of 4 in the starter kit Lesson 17.8 Biome 0 of 4 in the starter kit Lesson 27.3 Astral 0 of 4 in the starter kit Lesson 37.2 PMD 0 of 4 in the starter kit Lesson 47.1 Ruff 0 of 4 in the starter kit Lesson 57.1 detekt 0 of 4 in the starter kit Lesson 66.9

The record

Purpose: Luacheck is a static analyzer and linter for Lua code.
Warnings: It detects issues including undefined globals, unused variables and values, uninitialized variables, and unreachable code.
Lua support: It checks Lua 5.1–5.4 and LuaJIT syntax, and runs on those Lua versions.
Configuration: Checks can be configured through command-line options, configuration files, or comments in checked files.
Configuration detail: Configuration supports project-specific globals, standard-global sets, warning filters, and per-file or per-path overrides.
Output: The command line supports built-in TAP, JUnit XML, Visual Studio/MSBuild, plain-text, and default formatters.
Installation: The project documents installation through LuaRocks and provides a single-file 64-bit Windows binary.
Parallel checks: Parallel checking requires the LuaLanes dependency.
CI integration: The project documents a GitHub Actions workflow and provides a Luacheck GitHub Action.
Editor integrations: The project lists integrations for Vim, Sublime Text, Atom, Emacs, Brackets, Visual Studio Code, Nova, and Geany.
Container: Luacheck can be run as a standalone Docker container, including a prebuilt image published through GitHub Container Registry.
License: The project is distributed under the MIT License.
Support: The project directs users to its GitHub issue tracker for bugs, suggestions, and questions, and says pull requests are welcome.
Stability note: The README says the module interface may change between minor releases while the command-line interface is fairly stable.
Price from: Free

Where it ranks on The Geeks Club

Best Linters in 2026#9 of 33

Is Luacheck yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Luacheck

Sources

github.com/lunarmodules/luacheck/· checked 4 Oct 2026
luacheck.readthedocs.io/en/stable/config.html· checked 4 Oct 2026
luacheck.readthedocs.io/en/stable/cli.html· checked 4 Oct 2026