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Head-to-head · IaC Security Scanners

KICS vs TFLint

  • Updated Sep 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score KICS #2 in IaC Security Scanners 8.2/10 Free plan Free plan✓ 2 of 5 features Visit KICS
TFLint #8 in IaC Security Scanners 6.6/10 Free plan Free plan✓ 0 of 5 features Visit TFLint

KICS leads on 2 checks, TFLint on 0, and 1 is even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreKICS · 8.2/10
  • Free planboth
  • Most featuresKICS · 2 of 5

KICS scores higher on our rubric for iac security scanners: 8.2 against 6.6 out of 10; our editors rank them #2 and #8.

KICS offers custom policies; TFLint doesn't publish it. KICS offers open-source option; TFLint doesn't publish it.

KICS is the better fit for free, broad open-source IaC scanning. TFLint is the better fit for terraform linting and provider best practices.

  • KICS fits best

    Free, broad open-source IaC scanning

  • TFLint fits best

    Terraform linting and provider best practices

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature KICS 8.2/10 Visit ↗ TFLint 6.6/10 Visit ↗
At a glance
Editor score 8.2 6.6
Ranking #2 in IaC Security Scanners #8 in IaC Security Scanners
Best for Free, broad open-source IaC scanning Terraform linting and provider best practices
Pricing model Free Free
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted, Desktop
Platforms Windows, macOS, Linux Windows, macOS, Linux
Support Email, Community, Docs Docs, Community
Integrations 16 integrations 2 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features KICS 2/5 · TFLint 0/5
Custom policies ✓ (best) Not published
CI/PR integration Not published Not published
Fix suggestions Not published Not published
Drift detection Not published Not published
Open-source option ✓ (best) Not published
Specs
IaC frameworks Not published Not published
Our review
Pros
  • Scans Terraform, Kubernetes and CloudFormation configurations
  • Detects security issues, misconfigurations, passwords and secrets
  • Integrates with CI/CD, GitHub Actions and Visual Studio Code
  • Checks Terraform syntax, semantics, deprecated syntax, and unused declarations.
  • Adds AWS, Azure, and Google Cloud rules through a plugin-based architecture.
  • Offers JSON, Checkstyle, JUnit, compact, and SARIF output plus automatic fixing.
Cons
  • Self-hosted deployment leaves runtime management to your team
  • CLI or Docker operation may require engineering setup
  • GitHub Actions provides the specifically documented PR annotations
  • Scans Terraform rather than multiple infrastructure-as-code languages.
  • Does not provide configuration compliance or provisioning and deployed tests.
  • Support is through documentation and community channels.
Our verdict

KICS is a free, open-source static analysis tool for infrastructure-as-code projects. It is designed for teams that need security, compliance and misconfiguration checks across Terraform, Kubernetes and CloudFormation, with additional…

Read the review →

TFLint is a command-line linter for developers and infrastructure teams maintaining Terraform configurations. It checks syntax and semantics, flags deprecated syntax and unused declarations, and can identify invalid resource settings and…

Read the review →
  1. KICSIaC Security Scanners 8.2Free plan
  2. TFLintIaC Security Scanners 6.6Free plan

Strengths and trade-offs

  • KICS — where it wins

    • Scans Terraform, Kubernetes and CloudFormation configurations
    • Detects security issues, misconfigurations, passwords and secrets
    • Integrates with CI/CD, GitHub Actions and Visual Studio Code

    Where it doesn't

    • Self-hosted deployment leaves runtime management to your team
    • CLI or Docker operation may require engineering setup
    • GitHub Actions provides the specifically documented PR annotations

  • TFLint — where it wins

    • Checks Terraform syntax, semantics, deprecated syntax, and unused declarations.
    • Adds AWS, Azure, and Google Cloud rules through a plugin-based architecture.
    • Offers JSON, Checkstyle, JUnit, compact, and SARIF output plus automatic fixing.

    Where it doesn't

    • Scans Terraform rather than multiple infrastructure-as-code languages.
    • Does not provide configuration compliance or provisioning and deployed tests.
    • Support is through documentation and community channels.
  • KICS8.2/10 · Free plan

    A free, broad scanner for IaC security, compliance, misconfigurations and secrets.

    Visit KICSFull verdict →
  • TFLint6.6/10 · Free plan

    A free, local Terraform linter with cloud-provider rules, plugins, and autofixing.

    Visit TFLintFull verdict →

More comparisons

All IaC security scanners comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update