Best custom_lint Alternatives in 2026
The top custom_lint alternatives are Dart Analysis Server, Codacy and Snyk Code: 15 dart flutter static analysis tools our editors would look at instead of custom_lint, in our ranking order.
custom_lint: A free, open-source toolkit for authoring and testing custom Dart lints, but no longer actively developed. Where it falls short: no longer under active development; new lints are directed to analysis_server_plugin..
Switching from custom_lint? For most dart flutter static analysis tools buyers the best custom_lint alternative is Dart Analysis Server, built for dart and Flutter teams wanting the standard analyzer. On a budget, Dart Code Metrics starts at $16/seat/mo.
Why People Look for a custom_lint Alternative
- 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
- No security analysis — 3 of the alternatives below have it
Quick Picks by What You Need
- Best overallDart Analysis Server9.2
Dart and Flutter teams wanting the standard analyzer
Visit Dart Analysis Server - Lowest priceDart Code Metrics7.9
Paid plans from $16/seat/mo
Visit Dart Code Metrics - Best free optionDart Analysis Server9.2
Has a free plan
Visit Dart Analysis Server - Best for security analysisCodacy8.3
Security analysis (custom_lint: no)
Visit Codacy
All 15 custom_lint Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forDart and Flutter teams wanting the standard analyzer
- Better than custom_lint:
- Editor score 9.2 vs 7.3
A free, local analysis engine for Dart diagnostics and editor language services.
- Flutter analysis
- Dart analysis
9.2/10★★★★★Visit Dart -
Best forTeams seeking hosted, multi-language code analysis
- Better than custom_lint:
- Security analysis
- Editor score 8.3 vs 7.3
A hosted analysis suite with Dart support, pull-request checks, and a free plan.
- Security analysis
8.3/10★★★★☆Visit Codacy -
Best forTeams seeking source-code security scanning
- Better than custom_lint:
- Editor score 7.9 vs 7.3
Security-focused source scanning with IDE, pull-request, CLI, and CI/CD coverage.
7.9/10★★★★☆Visit Snyk Code -
Best forTeams needing extensive configurable Dart and Flutter checks
- Better than custom_lint:
- Editor score 7.9 vs 7.3
A deep Dart and Flutter analysis toolkit, with paid plans for broader rules and team workflows.
- CI integration
- Flutter analysis
- Dart analysis
7.9/10★★★★☆Visit site -
Best forDart teams wanting many lint rules and quick fixes
- Better than custom_lint:
- Editor score 7.8 vs 7.3
A free, open-source Dart analysis plugin with configurable rules and quick fixes.
- Flutter analysis
- Dart analysis
7.8/10★★★★☆Visit many_lints -
Best forFlutter projects wanting a recommended baseline lint set
- Better than custom_lint:
- Editor score 7.5 vs 7.3
A free, focused lint configuration for Dart and Flutter projects.
- Flutter analysis
- Dart analysis
7.5/10★★★★☆Visit site -
Best forFlutter developers wanting official-style starter lints
- Better than custom_lint:
- Editor score 7.4 vs 7.3
A free Flutter-focused lint configuration that works with Dart’s analyzer.
- Flutter analysis
- Dart analysis
7.4/10★★★★☆Visit flutter_lints -
Best forFlutter teams using Bloc or Cubit conventions
A configurable, open-source analyzer package for Dart, Flutter, Bloc, and Cubit conventions.
- Flutter analysis
- Dart analysis
7.2/10★★★★☆Visit pub.dev -
Best forSmall teams seeking self-hosted Dart security analysis
- Better than custom_lint:
- Security analysis
A self-hosted Dart analyzer combining code-quality checks with security-focused analysis.
- Security analysis
- CI integration
- Flutter analysis
7.1/10★★★★☆Visit Anteater -
Best forTeams wanting hosted pull-request quality checks
- Better than custom_lint:
- Security analysis
Hosted commit and pull-request analysis, with category fit dependent on language support.
- Security analysis
7.0/10★★★★☆Visit CodeFactor -
Best forTeams focused on code health and quality trends
Strong code-health governance for C# teams, but a weak fit for Dart or Flutter analysis.
6.9/10★★★☆☆Visit CodeScene -
Best forProjects needing a small set of import conventions
A free, focused supplement for enforcing consistent Dart package imports.
- Flutter analysis
- Dart analysis
6.8/10★★★☆☆Visit pub.dev -
Best forSmall projects seeking a strict Dart lint configuration
A free, documented strict-lint configuration for small Dart and Flutter projects.
- Flutter analysis
- Dart analysis
6.7/10★★★☆☆View strict -
Best forTeams enforcing design-system conventions in Flutter
A free Dart analyzer package for catching UI values that drift from design-system conventions.
- Flutter analysis
- Dart analysis
6.6/10★★★☆☆Visit site -
Best forRiverpod teams wanting framework-specific diagnostics
A free, open-source analyzer package for Riverpod-specific Dart and Flutter diagnostics.
- Flutter analysis
- Dart analysis
6.5/10★★★☆☆Visit Riverpod
custom_lint Alternatives: Common Questions
What is the best alternative to custom_lint?
Dart Analysis Server: #1 in our Dart Flutter Static Analysis Tools ranking, with an editor score of 9.2 out of 10. A free, local analysis engine for Dart diagnostics and editor language services.
Is there a free alternative to custom_lint?
Yes. Dart Analysis Server, Codacy, Snyk Code, Dart Code Metrics and many_lints have a free plan or a free tier (15 of the 15 alternatives on this page).
What is the cheapest paid alternative to custom_lint?
Of the alternatives here that publish a price, Dart Code Metrics starts lowest, at $16/seat/mo.
Why do people look for custom_lint alternatives?
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.
How do I switch from custom_lint?
Export your data from custom_lint (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel custom_lint.
How to Switch from custom_lint
- Export your data from custom_lint (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel custom_lint.
custom_lint vs Each Alternative
| # | Tool | Free plan | Paid from | Dart analysis | Flutter analysis | Deployment | Score |
|---|---|---|---|---|---|---|---|
| 8 | custom_lint | Yes | Free | Yes | Yes | Self-hosted | 7.3 |
| 1 | Dart Analysis Server | Yes | Free | Yes | Yes | Self-hosted | 9.2 |
| 2 | Codacy | Yes | $18/user/mo | 8.3 | |||
| 3 | Snyk Code | Yes | $25/user/mo | 7.9 | |||
| 4 | Dart Code Metrics | Yes | $16/seat/mo | Yes | Yes | Both | 7.9 |
| 5 | many_lints | Yes | Free | Yes | Yes | Self-hosted | 7.8 |
| 6 | Very Good Analysis | Yes | Free | Yes | Yes | Self-hosted | 7.5 |
| 7 | flutter_lints | Yes | Free | Yes | Yes | Self-hosted | 7.4 |
| 8 | leancode_lint | Yes | Free | Yes | Yes | Self-hosted | 7.2 |
| 9 | Anteater | Yes | Free | Yes | Yes | Self-hosted | 7.1 |
| 10 | CodeFactor | Yes | 7.0 | ||||
| 11 | CodeScene | Yes | €18/user/mo | 6.9 | |||
| 12 | simple_lint | Yes | Free | Yes | Yes | 6.8 | |
| 13 | strict | Yes | Free | Yes | Yes | 6.7 | |
| 14 | design_system_lints | Yes | Free | Yes | Yes | Self-hosted | 6.6 |
| 15 | riverpod_lint | Yes | Free | Yes | Yes | Self-hosted | 6.5 |
Head-to-Head
- custom_lint vs Dart Analysis Server
- custom_lint vs Codacy
- custom_lint vs Snyk Code
- custom_lint vs Dart Code Metrics
- custom_lint vs many_lints
- custom_lint vs Very Good Analysis
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update