Code formatters
Alternatives to Spotless
Spotless gives teams a free, open-source way to check source files for formatting violations or apply fixes. It spans languages and formats such as Java, Kotlin, JavaScript, Python, SQL, YAML, and Markdown, with formatter steps including Google Java Format, ktlint, Prettier, ESLint, Black, and ScalaFmt. Gradle and Maven integrations are available, alongside an external SBT integration. VS Code and IntelliJ links, Git-based options, and idempotency and encoding safeguards round out its workflow. It runs on Linux, macOS, and Windows.
- 01 Black
Black suits Python developers who want a consistent, opinionated formatter in command-line, editor or CI workflows.
Free plan Windows · macOS · Linux · Self-hosted8.7 Visit Specs - 02
Prettier Prettier suits developers who want consistently formatted code in editors or automated command-line and CI workflows.
Free plan Open source Web · Windows · macOS · Linux8.5 Visit Specs - 03
CSharpier CSharpier suits developers who want consistent C# or XML formatting across projects, editors, and automated build workflows.
Free plan Windows · macOS · Linux · API8.0 Visit Specs - 04 rustfmt
rustfmt suits Rust developers who want consistent formatting in a crate or workspace, including teams that check formatting in CI.
Free plan Windows · macOS · Linux7.9 Visit Specs - 05 elm-format Free plan Windows · macOS · Linux7.8 Visit Specs
- 06 gofmt
gofmt suits Go developers who want consistent source formatting from the command line or through documented editor and version-control integrations.
Free plan Windows · macOS · Linux7.8 Visit Specs - 07
Ruff Ruff suits Python developers who want linting, formatting, and automatic fixes in one tool.
Free plan Web · Windows · macOS · Linux7.8 Visit Specs - 08 clang-format Windows · macOS · Linux · Browser extension7.7 Visit Specs
- 09 autopep8 Windows · macOS · Linux · API7.6 Visit Specs
- 10
RuboCop Free plan Linux · Self-hosted7.6 Visit Specs - 11 Uncrustify Free plan Windows · macOS · Linux · Self-hosted7.6 Visit Specs
- 12 PHP CS Fixer Free plan Linux · Self-hosted7.5 Visit Specs
- 13 OCamlFormat Free plan Linux7.4 Visit Specs
- 14 swift-format Free plan macOS · Linux · iOS7.3 Visit Specs
- 15 Deno From $20/mo Free plan7.0 Visit Specs
- 16 Dart formatter Windows · macOS · Linux6.1 Visit Specs
- 17 EditorConfig 5.6 Visit Specs
- 18 google-java-format 5.5 Visit Specs
- 19 LuaFormatterKoihik 5.5 Visit Specs
- 20 YAPF Windows · macOS · Linux5.3 Visit Specs
- 21 StyLuaJohnnyMorganz 5.1 Visit Specs
Choosing instead of Spotless
An alternative may fit better when one language, editor, or project check matters more than broad coverage. Spotless's SBT matrix leaves ratcheting and fast incremental formatting unavailable, which can influence build-tool choices. Compare whether you need formatting only, or also accessibility checks, linting, import organization, language-specific validation, browser access, or configurable style controls. Check each tool's supported platforms and integrations as well as its price model. Since every option below is free, the practical choice depends on which workflow matches your codebase more closely.