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Head-to-head · Dart Flutter Static Analysis Tools

Dart Code Metrics vs custom_lint

  • Updated Sep 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Dart Code Metrics #4 in Dart Flutter Static Analysis Tools 8.0/10 Free plan · paid from $16/user/mo Free plan✓ 3 of 4 features Visit site
custom_lint #8 in Dart Flutter Static Analysis Tools —/10 Free plan Free plan✓ 3 of 4 features Visit custom_lint

Dart Code Metrics leads on 0 checks, custom_lint on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDart Code Metrics · 8.0/10
  • Free planboth

Our editors rank Dart Code Metrics at #4 and custom_lint at #8 for dart flutter static analysis tools; custom_lint has no rubric score yet (facts researched, not yet scored), so the checks below decide.

On deployment, Dart Code Metrics gives you Both where custom_lint offers Self-hosted.

Dart Code Metrics is the better fit for teams needing extensive configurable Dart and Flutter checks. custom_lint is the better fit for teams building and testing custom Dart lint rules.

  • Dart Code Metrics fits best

    Teams needing extensive configurable Dart and Flutter checks

  • custom_lint fits best

    Teams building and testing custom Dart lint rules

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature Dart Code Metrics 8.0/10 Visit ↗ custom_lint —/10 Visit ↗
At a glance
Editor score 8.0 —
Ranking #4 in Dart Flutter Static Analysis Tools #8 in Dart Flutter Static Analysis Tools
Best for Teams needing extensive configurable Dart and Flutter checks Teams building and testing custom Dart lint rules
Pricing model Free plan + paid Free
Starting price $16/user/mo Not published
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Self-hosted
Platforms Web, Windows, macOS, Linux Windows, macOS, Linux
Integrations 9 integrations 1 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Dart Code Metrics 3/4 · custom_lint 3/4
Dart analysis ✓ ✓
Flutter analysis ✓ ✓
Security analysis Not published —
CI integration ✓ ✓
Specs
Deployment Both Self-hosted
IDE support Multiple Multiple
Our review
Pros
  • Pro offers 536 lint rules plus Flutter widget and image-asset analysis.
  • Quick fixes, CLI auto-fixes, and IDE integrations support local workflows.
  • Teams adds CI/CD integrations, quality dashboards, and seat management.
  • Build, configure, and selectively enable custom lint rules.
  • Includes CLI analysis, rule tests, quick fixes, and assists.
  • Supports Flutter projects, plugin debugging, and hot reload.
Cons
  • The Free plan is capped at 50k analyzed LOC and 100 lint rules.
  • Pro costs $16 per seat per month; Teams costs $80 per month.
  • Enterprise pricing is not displayed alongside the other monthly plans.
  • No longer under active development; new lints are directed to analysis_server_plugin.
  • Focused on custom rules rather than a broad prebuilt ruleset.
  • Its listed IDE integration is Visual Studio Code.
Our verdict

Dart Code Metrics, also called DCM, is a static-analysis and code-quality toolkit for Dart and Flutter projects. It suits developers and teams that want configurable checks spanning lint rules, code health, project structure, dependencies,…

Read the review →

custom_lint is an open-source Dart package from Invertase for developers and teams that need to create and apply their own lint rules in Dart and Flutter projects. It supports custom rule development through custom_lint_builder, with a…

Read the review →
  1. Dart Code MetricsDart Flutter Static Analysis Tools 8.0Free plan · paid from $16/user/mo
  2. custom_lintDart Flutter Static Analysis Tools —Free plan

Strengths and trade-offs

  • Dart Code Metrics — where it wins

    • Pro offers 536 lint rules plus Flutter widget and image-asset analysis.
    • Quick fixes, CLI auto-fixes, and IDE integrations support local workflows.
    • Teams adds CI/CD integrations, quality dashboards, and seat management.

    Where it doesn't

    • The Free plan is capped at 50k analyzed LOC and 100 lint rules.
    • Pro costs $16 per seat per month; Teams costs $80 per month.
    • Enterprise pricing is not displayed alongside the other monthly plans.

  • custom_lint — where it wins

    • Build, configure, and selectively enable custom lint rules.
    • Includes CLI analysis, rule tests, quick fixes, and assists.
    • Supports Flutter projects, plugin debugging, and hot reload.

    Where it doesn't

    • No longer under active development; new lints are directed to analysis_server_plugin.
    • Focused on custom rules rather than a broad prebuilt ruleset.
    • Its listed IDE integration is Visual Studio Code.
  • Dart Code Metrics8.0/10 · Free plan · paid from $16/user/mo

    A deep Dart and Flutter analysis toolkit, with paid plans for broader rules and team workflows.

    Visit siteFull verdict →
  • custom_lint—/10 · Free plan

    A free, open-source toolkit for authoring and testing custom Dart lints, but no longer actively developed.

    Visit custom_lintFull verdict →

More comparisons

All dart flutter static analysis tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026