TFLint

Windows · Mac · Linux · Self-hosted

Freedom report

Three barsScore 6.5

TFLint is ranked #3 of 39 in bootable USB software on Freedom251. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

TFLint plans and pricing

TFLint Free Open-source command-line Terraform linter github.com · 29 Sept 2026

Purpose: TFLint is a pluggable Terraform linter whose features are provided by plugins.
Cloud checks: Its key features include finding possible errors for AWS, Azure, and GCP, such as invalid instance types.
Terraform rules: The bundled Terraform language ruleset can warn about deprecated syntax and unused declarations.
Best practices: TFLint can enforce best practices and naming conventions.
Extensibility: Users can add plugins, build their own plugins, or write policies in Rego.
Integrations: The project provides a GitHub Action and a Docker image, and supports installation with Homebrew, WinGet, or Go.
Outputs: Supported output formats include default, JSON, Checkstyle, JUnit, compact, and SARIF.
Automated fixes: The command-line interface has a --fix option to fix issues automatically.
Release verification: The project recommends verifying release checksums with GitHub CLI artifact attestations and marks Cosign signatures as deprecated.
License: The project says most of its files use MPL 2.0, some files in the terraform package use BUSL 1.1, and release binaries are bound by both licenses.
Support: The README directs users to the User Guide for usage details and the Developer Guide for development information.
Release availability: The releases page lists v0.64.0 as the latest release, dated July 17, 2026.
Price from: Free

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