Build & Ship · Testing & Quality
0 paid against 11 free you can run yourself.
Paid against free › Build & Ship › Testing & Quality › Linters & Formatters · Building the product on Repo Radar
Linters check code against rules and formatters rewrite its layout to one style, so a team's code stays consistent whoever, or whatever, wrote it. The leading tools are free and open source, often fast Rust rewrites that lint and format in one binary; paid products add editor depth for one ecosystem, hosted runs on pull requests, or dashboards and quality gates across many repositories. This comparison covers nine paid tools and ten open-source projects against the same twelve capabilities.
Prices and free tiers as checked, dated on each review.
Paid tools for this job are being added. The free alternatives below are ready to use.
Their home is another job; they cover part of this one too.
Free to use. You run it on your own server.
They do this job.
Prettier is an opinionated code formatter.
★ 52.4kFreeGOgolangci/golangci-lintFast linters runner for Go
★ 19.5kFreePRpre-commit/pre-commitA framework for managing and maintaining multi-language pre-commit hooks.
★ 15.7kFreeRUrubocop/rubocopA Ruby static code analyzer and formatter, based on the community Ruby style guide.
★ 12.9kFreeSTstylelint/stylelintA mighty CSS linter that helps you avoid errors and enforce conventions.
★ 11.5kFreeSUsuper-linter/super-linterCombination of multiple linters to run as a GitHub Action or standalone
★ 10.6kFreeA second choice: they cover part of this job or are a building block for it.
PHP Static Analysis Tool - discover bugs in your code without running it!
★ 14.1kFreeINmicrosoft/inshellisenseIDE style command line auto complete
★ 10.7kFreePMpmd/pmdAn extensible multilanguage static code analyzer.
★ 5.5kFreeMEoxsecurity/megalinter🦙 MegaLinter analyzes 50 languages, 22 formats, 21 tooling formats, excessive copy-pastes, spelling mistakes and security issues in your repository sources with a GitHub Action, other CI tools or locally.
★ 2.6kFreePYse2p/pynguinThe PYthoN General UnIt Test geNerator is a test-generation tool for Python
★ 1.4kFreeOne job at a time: the paid tools worth paying for, the free ones you can run yourself, and who should pick which.
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