Head-to-head · Dart Flutter Static Analysis Tools
flutter_lints vs custom_lint
flutter_lints leads on 0 checks, custom_lint on 1, and 4 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
- Free planboth
- Most featurescustom_lint · 3 of 4
Our editors rank flutter_lints at #7 and custom_lint at #8 for dart flutter static analysis tools; flutter_lints and custom_lint have no rubric score yet (facts researched, not yet scored), so the checks below decide.
custom_lint offers ci integration; flutter_lints doesn't publish it.
flutter_lints is the better fit for flutter developers wanting official-style starter lints. custom_lint is the better fit for teams building and testing custom Dart lint rules.
- flutter_lints fits best
Flutter developers wanting official-style starter lints
- custom_lint fits best
Teams building and testing custom Dart lint rules
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Side by side
| Feature | flutter_lints —/10 Visit ↗ | custom_lint —/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | — | — |
| Ranking | #7 in Dart Flutter Static Analysis Tools | #8 in Dart Flutter Static Analysis Tools |
| Best for | Flutter developers wanting official-style starter lints | Teams building and testing custom Dart lint rules |
| Pricing model | Free | Free |
| Starting price | Not published | Not published |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features flutter_lints 2/4 · custom_lint 3/4 | ||
| Dart analysis | ✓ | ✓ |
| Flutter analysis | ✓ | ✓ |
| Security analysis | Not published | — |
| CI integration | Not published | ✓ (best) |
| Specs | ||
| Deployment | Self-hosted | Self-hosted |
| IDE support | Not published | Multiple |
| Our review | ||
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| Our verdict | flutter_lints is an open-source Dart package from the Flutter team that supplies recommended lint rules for Flutter apps, packages, and plugins. It suits developers who want a starting point for consistent project checks, including solo… 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 → |
Strengths and trade-offs
flutter_lints — where it wins
- Extends Dart’s recommended lint set with Flutter-specific rules
- Works in supported IDEs and with flutter analyze
- Rules can be customized in analysis_options.yaml
Where it doesn't
- Focused on lint configuration rather than broader analysis tooling
- Older projects must add it as a development dependency
- Depends on the Dart analyzer to surface identified issues
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.
- flutter_lints—/10 · Free plan
A free Flutter-focused lint configuration that works with Dart’s analyzer.
Visit flutter_lintsFull 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 →
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All dart flutter static analysis tools comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026