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Developer Tools
Tool for exploring each layer of a container image
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hadolint
Smarter Dockerfile linter with inline shell checking
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About hadolint
hadolint is a Dockerfile linter written in Haskell that parses your Dockerfile into an AST and checks it against best-practice rules, using ShellCheck to also lint the bash code inside RUN instructions. It supports configuration files, inline and global rule ignores, label schema validation and multiple output formats including JSON, SARIF and JUnit for CI pipelines.
hadolint website preview
Live preview of github.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.
hadolint: strengths & things to check
Strengths
- Completely free to use — this directory lists no paid plan for it.
- Covers docker, linter, dockerfile, ci cd — see the focus areas listed in its key facts.
- Has 6 close alternatives in the same category on this page, so switching or comparing is easy.
Things to check
- Free tools can change their model or shut down — avoid locking critical work into it without an export path.
- Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
- It is one of 1288 tools in the Developer Tools category here — compare it against the alternatives below before you commit.
Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.
hadolint pricing
| Pricing model | Free — listed in this directory as a free tool, with no paid plan required to use it. |
|---|---|
| Free access | Yes — fully free |
| Current plan prices | Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale. |
| Official site | github.com |
hadolint key facts
- Category: Developer Tools
- Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
- Focus areas: docker, linter, dockerfile, ci cd
- Official site: github.com
hadolint FAQ
How much does hadolint cost?
Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (github.com).
What is hadolint used for?
Smarter Dockerfile linter with inline shell checking Its focus areas in the Developer Tools category: docker, linter, dockerfile, ci cd.
Where can I try hadolint?
On its official site, github.com — the Visit Official Site button above goes straight there.
hadolint vs alternatives
| hadolint | dive | act | Beszel | |
|---|---|---|---|---|
| Pricing | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. |
| Focus areas | docker, linter, dockerfile, ci cd | docker, image analysis, cli, ci cd | github actions, ci, cli, docker | monitoring, servers, docker, stats |
| Official site | github.com | github.com | nektosact.com | beszel.dev |
| Directory status | Listed | Listed | Listed | Listed |
Side-by-side from each listing's own directory data. Full alternative cards are below.
About the Developer Tools category
Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1288 tools. Alongside hadolint, it includes Syft, Grype, Okteto, Kata Containers.
Alternatives to hadolint
Tools in the same Developer Tools category that share focus areas with hadolint — worth comparing before you commit:
A
Developer Tools
Run your GitHub Actions workflows locally
B
Developer Tools
Lightweight server monitoring with Docker stats
B
Developer Tools
Git code hosting with built-in CI/CD from Atlassian
B
Developer Tools
Mobile-first continuous integration and delivery
C
Developer Tools
Continuous integration and delivery for software teams
More in Developer Tools
Comparing tools in the Developer Tools category? These related listings are worth a look: Syft — CLI for generating SBOMs from images and filesystems; Grype — Vulnerability scanner for container images and filesystems; Okteto — Develop applications directly inside your Kubernetes cluster.
SDeveloper Tools
CLI for generating SBOMs from images and filesystems
GDeveloper Tools
Vulnerability scanner for container images and filesystems
O
Developer Tools
Develop applications directly inside your Kubernetes cluster
K
Developer Tools
Secure container runtime with lightweight virtual machines
M
Developer Tools
Run local processes as if they were pods in your Kubernetes cluster
C
Developer Tools
Lightweight container runtime made specifically for Kubernetes