Side by side
Cppcheck vs Flake8
Both stand on linters. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source LinuxMacSelf-hosted+1
Cppcheck offers core C and C++ analysis for free, with paid licensing adding standards checks and compliance reporting. Check license limits carefully if you need CI, containers, virtual machines, or air-gapped use.
Visit Cppcheck Free plan Open source APILinuxMac+2
Choose Flake8 for free, configurable Python checks from the command line, especially when plugins or version-control hooks fit your workflow. Look elsewhere if you need autofix, security rules, or IDE support.
Visit Flake8The facts
| Cppcheck | Flake8 | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Runs on | Linux, Mac, Self-hosted, Windows | API, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 8 | 1 |
| Maker | Not published | Not published |
| Website | cppcheck.com | flake8.pycqa.org |
| On linters | #1 of 33 | #2 of 33 |
Cppcheck: what it does well
- Free plan includes core static analysis
- Analyzes non-standard syntax found in embedded projects
- Integrates with several listed IDEs
- Three-week trial requires no credit card
What to know first
- C++20 support is partial
- Individual license excludes CI environments, virtual machines, and containers
- Project plan requires at least five users
- Premium plan prices require a tailored quotation
Flake8: what it does well
- Free, open-source command-line tool for Python.
- Combines pycodestyle, pyflakes, and McCabe checks.
- Supports community and locally configured plugins.
- Allows error-code selection and per-file ignores.
- Can run with pre-commit, Git, and Mercurial hooks.
What to know first
- No autofix, security rules, or IDE support.
- Third-party plugin accuracy and reliability can vary.
- Third-party plugins are not guaranteed to work with Flake8 3.0.
Alternatives to Cppcheck Alternatives to Flake8 The whole list