Best Flake8 Alternatives in 2026
Updated
20 apps from linters ranked against Flake8 on the same published basis.
- 1Flake8 vs Biome
- 2Flake8 vs Cppcheck
- 3Flake8 vs Hadolint
- 4Flake8 vs PMD
- 5Flake8 vs Ruff
- 6Flake8 vs ShellCheck
- 7Flake8 vs SwiftLint
- 8Flake8 vs Astral
- 9Flake8 vs Checkstyle
- 10Flake8 vs detekt
- 11Flake8 vs golangci-lint
- 12Flake8 vs HLint
- 13Flake8 vs Luacheck
- 14Flake8 vs Oxc
- 15Flake8 vs PHPMD
- 16Flake8 vs pycodestyle
- 17Flake8 vs SQLFluff
- 18Flake8 vs Staticcheck
- 19Flake8 vs Stylelint
- 21Flake8 vs RuboCop
Flake8 alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Biome | 6.6 | Free plan | Free | Browser, Linux, Mac, Web, Windows |
| 2 | Cppcheck | 6.6 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 3 | Hadolint | 6.6 | Free plan | Free | Linux, Mac, Web, Windows |
| 4 | PMD | 6.6 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 5 | Ruff | 6.6 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 6 | ShellCheck | 6.6 | Free plan | Free | Browser, Linux, Mac, Web, Windows |
| 7 | SwiftLint | 6.6 | Free plan | Free | Linux, Mac, Windows |
| 8 | Astral | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 9 | Checkstyle | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 10 | detekt | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 11 | golangci-lint | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 12 | HLint | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 13 | Luacheck | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 14 | Oxc | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 15 | PHPMD | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 16 | pycodestyle | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 17 | SQLFluff | 6.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 18 | Staticcheck | 6.5 | Free plan | Free | Linux, Mac, Windows |
| 19 | Stylelint | 6.5 | Free plan | Free | API, Linux, Mac, Windows |
| 21 | RuboCop | 6.4 | Free plan | Free | Linux, self-hosted |
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Questions about Flake8 alternatives
What is the best alternative to Flake8?
Biome, number 1 in linters with a score of 6.6 out of 10. The others here: Cppcheck, Hadolint, PMD and 16 more.
What is the best free alternative to Flake8?
Biome is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.