cfn-lint

Install command:
brew install cfn-lint

Validate CloudFormation templates against the CloudFormation spec

https://github.com/aws-cloudformation/cfn-lint/

License: MIT-0

Development: Pull requests

Formula JSON API: /api/formula/cfn-lint.json

Formula code: cfn-lint.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon
tahoe
sequoia
sonoma
macOS on
Intel
sonoma
Linux ARM64
x86_64

Current versions:

stable 1.46.0

Depends on:

libyaml 0.2.5 YAML Parser
pydantic 2.12.5 Data validation using Python type hints
python@3.13 3.13.12 Interpreted, interactive, object-oriented programming language
rpds-py 0.30.0 Python bindings to Rust's persistent data structures

Analytics:

Installs (30 days)
cfn-lint 2,249
cfn-lint --HEAD 2
Installs on Request (30 days)
cfn-lint 1,750
cfn-lint --HEAD 2
Build Errors (30 days)
cfn-lint 0
Installs (90 days)
cfn-lint 9,242
cfn-lint --HEAD 8
Installs on Request (90 days)
cfn-lint 6,957
cfn-lint --HEAD 8
Installs (365 days)
cfn-lint 42,448
cfn-lint --HEAD 65
Installs on Request (365 days)
cfn-lint 34,560
cfn-lint --HEAD 65