Configuration file linting

Check YAML files, Dockerfiles and CI workflow definitions for mistakes.

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Configuration file linting
Tool	Stars	Licence	Terms	Self-hosted	Language	Latest	Last push
Hadolint	12k	GPL-3.0	Open source	No	Haskell	v2.15.1	2026-09-25
actionlint	4.3k	MIT	Open source	No	Go	v1.7.12	2026-07-16
yamllint	3.5k	GPL-3.0	Open source	No	Python	v1.38.0	2026-09-19

3 tools

Dockerfile linter, validate inline bash, written in Haskell

Language: Haskell
Licence: GPL-3.0
Stars: 12k
Latest: v2.15.1
Last push: 2026-09-25

:octocat: Static checker for GitHub Actions workflow files

Language: Go
Licence: MIT
Stars: 4.3k
Latest: v1.7.12
Last push: 2026-07-16

A linter for YAML files.

Language: Python
Licence: GPL-3.0
Stars: 3.5k
Latest: v1.38.0
Last push: 2026-09-19